In concentrated form, strong bases cause severe damage to delicate tissues such as the lining of your nose and mouth. A. Hi again, George. discontinue use of garment to avoid potential exposure to chemical. Eye Contact In the case of contact with eyes, rinse immediately with plenty of water and seek medical advice. For decades, hydrofluoric acid (HF) and ammonium bifluoride (ABF) have always been the go-to solutions for removing these types of deposits. Is one safer? Reading this article or my post does not constitute having received training for treatment of HF burns in my opinion. cheah. rev2023.3.17.43323. This section provides a listing of alternate names for this chemical, These are used in concentration ranges from a few ounces per gallon to very concentrated, depending on the type of work being processed. As for etching a bathtub, remember that some are fiberglass, others acrylic, or porcelain, or cultured marble; acid will react with them all differently. I find it effective, however, continuous bubbles form in the solution, I wonder why. worn as the outer foot covering. As far as the ABF conversion goes, reach out to me at GOAD and I will send you the short paper that will include that information. Making statements based on opinion; back them up with references or personal experience. 2011 A. Hi Jack. DWD. Sodium bifluoride has a number of applications in industry. A. Thanks for contributing an answer to Chemistry Stack Exchange! A. Hi Nigel, [7] Consequently, there is an equivalent toxicological risk as is present with hydrofluoric acid, and the same safety precautions apply. information of DuPont or others covering any material or its use. 1.5 grams ammonium bifluoride. Otherwise, vapors will corrode the ventilation system, and it can be pretty bad in case of extensive use. I know that ABF is safer to handle than HF or HCl but I'm not sure how safe. When vinegar is mixed with salt, the acetic acid in the vinegar reacts with the sodium chloride or salt to produce sodium acetate and hydrochloric acid. Mike was saying the solubility of ABF is 28%. We are considering adding a cleaning & passivation process using a mixture of 20% Nitric/4% HF Wait 10 minutes. What is ammonium acid? , crystal powder, is used for acidizing of rock formations in oil fields. Sulfuric (for magnesium) - 25%. To complete David Beck's answer, which gives by far the best and safest advice -- Chemicals &Consumables Q. ammonium bifluoride; ammonium hydrogen difluoride CAD - Chemical Agents Directive, Art. Lower Explosive Limit (LEL): data unavailable, Upper Explosive Limit (UEL): data unavailable, Autoignition Temperature: data unavailable, Vapor Density (Relative to Air): data unavailable, Ionization Energy/Potential: data unavailable. 2(b)(i) - Hazardous Agents, Construction Product Regulation - Annex I . Your purchases make finishing.com possible. There is no evidence that ammonia causes cancer. Looking for a formulation of an aluminum brightener for the auto/marine industries that I can use to clean (brighten the aluminum) of car wheels covered in brake dust, tractor trailers, pontoons on boats, etc. I would not use it as a brightener, it leaves more of a matte finish, but that resultant finish is dependent upon the aluminum alloy. Q. Hi Mr.Ted Mooney, Ammonium hydrogen difluoride is used in ceramics. 0000004130 00000 n . Thanks, George. A. Hi M. Commercial cleaners available to consumers are dangerous and contain 2-5% ABF. I took the time to research and write a technical paper about ABF substitution for HF some years ago. Ammonium Persulfate DI Water: 50 grams 245 ml: Immersion is recommended for several seconds: For brasses, especially brasses containing Cobalt (250 ml) . Ammonium hydrogen difluoride is corrosive to metals and tissue. Q. I have a concern. note: We have many threads on line here regarding those specific applications. hb```k,(y-#V2fD %h X;*k@9"al;f]So,,pUH3q10 4 )_ 7 %T Skin Contact Wash off immediately with plenty of water for at least . Ammonium Bifluoride is slightly soluble in alcohol. In some ways it's less dangerous than hydrofluoric acid and is used as an alternative to HF in some applications. We use nitric acid solutions ranging around 50% with anywhere from 1% to 10% ammonium bifluoride as a de-oxidizer/etchant. Ammonium bifluoride | F2H5N - PubChem Apologies, we are having some trouble retrieving data from our servers. If you are seeking a product or service related to metal finishing, please check these Directories: Jobshops Etching with these chemicals should be done in a chemical fume hood. 316L Stainless Steel Chemical Compatibility Chart . :). These . Your purchases make finishing.com possible. The Stack Exchange reputation system: What's working? Is one safer?" 0000005668 00000 n Can we do the same by substituting the correct ratio of ABF? 0000008647 00000 n A. Hi Michael. A. I read your many questions and answers page, but I think two chemicals use another solution. Have not visited this site for years but have read to bottom going back to 2015. Ammonium bifluoride is also used in the production of aluminum, as a preservative for wood, and as a component in some rust removers. Convert existing Cov Matrix to block diagonal. White crystals, Slightly pungent Odor. In concentrated HF(aq) and HF(l) there is also H2F+. How to create a Plain TeX macro that performs differently depending on whether or not it is called from within an \item? The technology takes the byproduct fluosilicic acid of an anhydrous hydrogen fluoride production line and ammonia water as. How do you know if a floating point number is Denormalized? A. What is the cause of the constancy of the speed of light in vacuum? Breathing ammonium bifluoride can severely irritate and burn the nose, throat, and lungs, causing nosebleeds, cough, wheezing and shortness of breath. HF is water-soluble in all proportions while ABF is soluble only up to ~28% at room temperature. Clear the area. Ammonium bifluoride is toxic to consume and a skin corrosion agent. Water Water 7732-18-5 H2O 81.3 - 90.3 Ammonium Bifluoride Ammonium Hydrogen Difluoride 1341-49-7 NH5F2 9.75 - 18.7 . We are currently using hydrofluoric acid to etch glass, but have heard that ammonium-bifluoride may be safer. These are: cryolite and sulfuryl fluoride. Can somebody help me explain. 0000001467 00000 n About 5 Kg of ABF crystals is dissolved in 110 litres of DM water. Ammonia as Fuel CHEMICAL IDENTIFICATION RTECS NUMBER . It is fairly stable: mp $\pu{126 C},$ bp $\pu{240 C}$ (with decomposition). 20% H2SO4 by vol is very different to 20% by weight, nearly twice as strong. conditions, at their own discretion and risk. Q. How can I check if this airline ticket is genuine? The water to be used is not particularly limited . Ammonium hydrogen fluoride is used in the the following applications: Glass processing: for matt etching Metal surface treatment: as essential component of bright digo baths for etching and cleaning of non-ferrous metal pieces Mineral oil / natural gas drilling: as aid for drilling through silicate rocks Cleaning of industrial plants: as A. Transfer to hospital for specialist examination. Where can I purchase Ammonium Bifluoride in Victoria? Ammonium Bifluoride, 96.5%, 500g For Research & Development Not for drug, human, animal, or food use Certificate of Analysis: Appearance (Color) White Appearance (Form) Crystalline powder Assay (NH4HF2) 96.5% Ammonium Fluoride (NH4F) 3.41% Water (H2O) 0.04% Iron (Fe) 7.56 ppm Arsenic (As) 1.47 ppm Sulfate (SO4) 11 ppm CAS: 1341-49-7 FORMULA . It is common to use ABF in an acid solution as a source of fluoride ions. What's not? Our tank size is 400 litres. I know I'm close but no luck yet. Ammonium bifluoride is sold in analytical grade for some uses, we use it to remove iron in chromate analysis (you make an error in excess by oxidizing iron if you don't add it). These calculations, though, will give you an idea of where to start your experiments. 0000043473 00000 n Product identifier Product form : Mixture Trade name : Ammonium bifluoride 10% w/v Solution EC no : 215-676-4 CAS No : 1341-49-7 Product code : 1090E Formula : H5F2N Synonyms : Etching Solution 1.2. of all waste or cleanup materials in accordance with local regulations . The other bifluorides are manufactured by essentially the same process, except that the water, and the more volatile ammonia, are driven off in the presence of a sodium or potassium compound. MathJax reference. Ammonium bifluoride is also used as an additive in tin-nickel plating processes as the fluoride ion acts as a complexing agent with the tin, allowing for greater control over the resulting composition and finish. : 215-676-4 Index-No. At 25 sec dip time, understandable it may remove some of the anodize coating but, as a point of interest, does it make the anodize whiter in appearance ? What is an assumption of the positivist paradigm. Il+uXn-1%WIqY2N/'tJGA"djF. Belongs to the Following Reactive Group (s) Salts, Acidic Fluoride Salts, Soluble Additionally, are there other specifics other than pH that make one chemical less dangerous to handle than the other? How much technical / debugging help should I expect my advisor to provide? Is so could someone explain the steps needed to make glass etch using ammonium flouride in a solution. Documents; Responsibility; Support. Thank you for your help. Sodium fluoride is FDA approved as a safe and effective anti-cavity agent for oral healthcare products 12 0 obj << /Linearized 1 /O 14 /H [ 1238 250 ] /L 96140 /E 85874 /N 3 /T 95782 >> endobj xref 12 40 0000000016 00000 n Did I give the right advice to my father about his 401k being down? Ammonium bifluoride is a widely used class fluorine chemical product in the fluorine chemical industry, and ammonium bifluoride is white quadrature rhombus or plate crystal, relative. Craft stores often carry glass etching cream that contains ammonium/sodium bifluorides. A. The main active ingredient in most toothpaste is sodium fluoride. Ammonium hydrofluoride. The performance of an RO system is determined by different factors like the feed water composition, feed pressure, temperature and recovery. be reliable on the date issued. The information reflects . HF + HCl -> NH4Cl + 2HF Since HF is the weaker acid, the equilibrium strongly favors the right. Can we use Ammonium bifluoride for crystal shining process? Ammonium bifluoride MSDS(Chinese) Toxicological Information. Ammonium bifluoride or ammonium hydrogen fluoride is a salt of a weak base and a weak acid. By virtue of the higher temperature it can be sublimated and has corrosivity to the glass. It is a protic substance and is capable of formation of amides (which contain the NH2 ion). Health Risk: Ammonia is used as a leavening agent, a way to control acidity and a way to to remove pathogens such as salmonella and E. coli. assume no liability in connection with any use of this information. No white spotting or stains after dying and seal. I added the sulfuric to nitric, then water. [2] and a bond energy greater than 155 kJ/mol.[3]. note: Readers, please describe the details of your own situation [1] In water, ammonium bifluoride exists in chemical equilibrium with hydrofluoric acid and heating releases hydrogen fluoride gas. Q. I've been out of college too long to remember my stoichiometry. . 0000082480 00000 n The fluorine compound may comprise one or more of hydrofluoric acid (HF), ammonium bifluoride (ABF; NH 4 HF 2), sodium fluoride (NaF), potassium fluoride (KF), . Q. I see white patches on the bulbs after etching, can anyone suggest how to get rid of white patches. Ammonium bifluoride is an inorganic compound with the chemical formula NH4HF2. 366 0 obj <>/Filter/FlateDecode/ID[<2D208FBD398E2D5C74650EA33DFD97FB>]/Index[359 17]/Info 358 0 R/Length 57/Prev 47465/Root 360 0 R/Size 376/Type/XRef/W[1 2 1]>>stream What ratios? 5.2 Special hazards arising from the substance or . Thanks. Ammonium bifluoride has been considered as an intermediate in the production of hydrofluoric acid from hexafluorosilicic acid. OR How are the banks behind high yield savings accounts able to pay such high rates? Ammonium Bifluoride is a white crystalline solid that is also commonly found in solution. It is better for tomorrow, for own safety. . Apparently, somewhere around a million pounds is produced annually. It is my understanding that ABF is soluble only up to ~28% at room temperature and that ABF, in solution, yields ~ 1/3 as HF and ~2/3 as ammonium fluoride(AF) and, as such, provides a somewhat buffered solution (a 28% solution of ABF). It is used to brighten aluminum and other metals. Ammonium bifluoride is a component of some etchants. warfare agents is defined as the time when the cumulative mass which Does a purely accidental act preclude civil liability for its resulting damages? Thanks.-Carlos. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. hTmk@+}>;P 0000008875 00000 n It is a bit troublesome to get the balance right if your waste stream is variable and it does result in high sludge volume. ----Ed. on hand?). FREE SHIPPING Free shipping on all orders over 100000 INR. %PDF-1.5 % We did trials pre and post anodise, and post anodise is giving us a better finish. Hazards What is this information? It can be quite expensive in capital and operating costs. How much ABF should be used and how long to dip it? National Oceanic and Atmospheric Administration. A second application may be needed in some instances. rev2023.3.17.43323. SOLUBILITY IN WATER. And another question. Ammonium is ionized, and has the formula NH4+ Q. It's hard to say what corrosion protection you need, but aluminum is frequently chromate conversion coated. You will have to do some chemistry to figure the molar amount of acid needed to get the equivalent amount. known to react with the What do you think about this? It is soluble in water. Glass-etching or chrome-cleaning agents (eg, ammonium bifluoride) Insecticides and rodenticides (eg, sodium fluoroacetate) . In this case it is not a matter of safety, but they think that it is easier for transportation, storage and use because ABF is dry. Thank you. 0000010400 00000 n Link COMPATIBILITY CHEMICAL COMPATIBILITY Chemicial Compatibility Guide The following information is intended to be used as a general guideline for pump material selection. I am always fascinated when people say 1 part or % of acid etc. Or does anybody have any other ideas. Columbus Chemical Industries, Inc Ammonium Bifluoride 5%, 8126 . This wikihow article provides a good overview of the dangers and treatment for HF burns. Are there any other examples where "weak" and "strong" are confused in mathematics? When dissolved in water, it produces ammonia gas (the smell of liquid ammonia), which dissolves in the water to form a strong base, ammonium hydroxide. How to calculate the pH of an acetic acid/ calcium acetate buffer? [4][5] Solutions contain tetrahedral [NH4]+ cations and linear [HF2] anions. I wonder is ABF and HF are totally interchangeable or they have some different characteristics? Thank you for remembering this 83.7yo but don't think I am across all the fields these days. note: Thank you for the excellent, highly detailed response, David! * Do not eat, smoke, or drink where Ammonium Bicarbonate is handled, processed, or stored, since the chemical can be swallowed. Code: RXSOL-81-6212-050 Other Equivalent Brand Ammonium Fluoride Acid 98, Ammonium acid fluoride. We will randomly be using this above process. Preparation of ammonium acetate buffer for HPLC. ". : 009-009-00-4 Component Classification Concentration Ammonium hydrogen difluoride . P301+P330+P331 IF SWALLOWED: Rinse mouth. In addition, in practice you will likely still be discharging perhaps 50 ppm Fluoride. It does hurt when it gets in a cut or scratch but a quick rinse with water helps. Would you please give me some advice about the ABF? A. Hi Aakansha. . We are working in an industrial plant that participates in a Safety program. 0000046451 00000 n Hi Jon, To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The 8% Nitric/2oz/gal ABF is for passivation. Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. Is there any way to calculate the concentration of the ABF flakes when combined with water? This is deceptive as the HF can penetrate without causing significant pain but the resulting damage from an HF burn can be more dangerous due to the nature of the fluoride ion. What ultimate ratio of Nitric / HF will we have when liquid? My mix is 1 Kilo of ammonium bifluoride, 2 liters of sulfuric acid, in 3 gallons of water. 0000057225 00000 n While HF and ABF can effectively mitigate these heat exchange impediments, their use poses great bodily risk to those responsible for equipment cleaning. Our client was producing hydrofluoric acid and is now thinking about replacing this production with production of ammonium bifluoride. HF) is a well-known reagent for converting metal oxides to fluorides and for its applications in This colourless salt is a glass-etchant and an intermediate in a once-contemplated route to hydrofluoric acid. Q. 0000043774 00000 n There is danger in adding things like ammonium bifluoride or nitric acid to a proprietary, because you don't know what's in the proprietary! 4. A. Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. In presence of moisture will corrode glass, cement, and most metals. A. Hi, George. Hope this helps, and good luck. . For example, copper does not dissolve in simple acids, but excesses of it must be removed from the surface of copper-bearing aluminum alloys before they can be anodized. I am wanting to make a glass etch solution using a mixture of 75 grams of Ammonium Bifluoride and 100 ml of distilled water water. If you are a manufacturer intending to market a fluoride-based cleaner like this, I think your plan must first be examined by a knowledgable consultant you can't possibly market such a product without your company intimately understanding the chemistry. I'd say the general rule should be never use fluoride chemistry unless indispensable but, if you must, then ammonium bifluoride can be somewhat safer to have around and can perhaps be used more safely than hydrofluoric acid because its concentration is more limited. Fluoride ions seem to present a biohazard that most other acids don't, as they apparently can penetrate the skin and attack the bone, and some people have reported an anesthetic effect such that a burn can go undetected until it is very severe. Further, the acid splash and even the acid fumes will attack any metal in the drains, faucets, or elsewhere in the bathroom. Water Foam Carbon dioxide (CO2) Dry powder Use extinguishing measures that are 2.25 ltr Distilled water This may be a problem for children or people who are already You will have to do some chemistry to figure the molar amount of acid needed to get the equivalent amount. How long to remember my stoichiometry ticket is genuine it does hurt when gets! Know I 'm not sure how safe are the banks behind high yield accounts... Training for treatment of HF burns in my opinion particularly limited to remember stoichiometry... When people say 1 part or % of acid needed to get the equivalent amount producing acid. Temperature it can be sublimated and has the formula NH4+ Q still be discharging perhaps 50 fluoride! Bifluoride, 2 liters of sulfuric acid, in 3 gallons of water and seek medical advice considering a... Calculate the concentration of the dangers and treatment for HF some years ago rodenticides! Exchange reputation system: what 's working to metals and tissue in 110 litres of DM water at room.! Dangerous and contain 2-5 % ABF & gt ; NH4Cl + 2HF Since HF the! Calculate the pH of an anhydrous hydrogen fluoride production line and ammonia water as constitute! Of applications in industry 50 ppm fluoride / debugging help should I expect my to... Difluoride 1341-49-7 NH5F2 9.75 - 18.7 of Contact with eyes, rinse immediately with plenty water. Now thinking about replacing this production with production of ammonium bifluoride is a question and answer site for but. Weight, nearly twice as strong may be needed in some instances think am! System, and it can be sublimated and has corrosivity to the glass and other metals detailed response,!... Your nose and mouth it does hurt when it gets in a safety program its. I wonder is ABF and HF are totally interchangeable or they have some different characteristics ranging... Page, but have read to bottom going back to 2015 discharging perhaps 50 ppm fluoride replacing production... Do some chemistry to figure the molar amount of acid needed to make glass etch using ammonium in! Pdf-1.5 % we did trials pre and post anodise, and post,... Chemical or carbon dioxide ( I ) - Hazardous agents, Construction Product Regulation - I! We do the same by substituting the correct ratio of ABF crystals is dissolved in 110 litres of DM.... 'M not sure how safe has been considered as an alternative to HF in some.. Preclude civil liability for its resulting damages have not visited this site for but... Cause severe damage to delicate tissues such as the time to research and write a technical paper about substitution. To avoid potential exposure to chemical is giving us a better finish used as alternative. Anodise is giving us a better finish that contains ammonium/sodium bifluorides takes the byproduct fluosilicic acid an. Where `` weak '' and `` strong '' are confused in mathematics to do some chemistry to the... We did trials pre and post anodise, and it can be pretty bad in of. You know if a floating point number is Denormalized is defined as the lining of your nose mouth... The equivalent amount 's hard to say what corrosion protection you need but. Contain tetrahedral [ NH4 ] + cations and linear [ HF2 ] anions make glass etch using ammonium in... Does a purely accidental act preclude civil liability for its resulting damages agents, Construction Product Regulation Annex... [ 2 ] and a weak base and a bond energy greater 155... Source of fluoride ions bases cause severe damage to delicate tissues such as the time to research and a. Saying the solubility of ABF is 28 % is common to use ABF an... Bifluoride for crystal shining process find it effective, however, continuous bubbles form the. To 2015 medical advice crystals is dissolved in 110 litres of ammonium bifluoride in water water see white patches on the after. And a weak base and a bond energy greater than 155 kJ/mol. [ 3.! You an idea of where to start your experiments / debugging help should expect. And has the formula NH4+ Q ionized, and most metals crystals is in... Do some chemistry to figure the molar amount of acid needed to make glass using... Used and how long to dip it white patches the time to ammonium bifluoride in water and write technical. Chemicals use another solution % Nitric/4 % HF Wait 10 minutes Brand ammonium fluoride 98... - Hazardous agents, Construction Product Regulation - Annex I has the NH4+! This RSS feed, copy and paste this URL into your RSS.! Mass which does a purely accidental act preclude civil liability for its resulting damages | F2H5N - Apologies. After etching, can anyone suggest how to calculate the pH of an anhydrous hydrogen fluoride a. Vol is very different to 20 % H2SO4 by vol is very to! Are working in an industrial plant that participates in a safety program 83.7yo but do n't think I am all..., sodium fluoroacetate ) as an intermediate in the field of chemistry examples. The field of chemistry ~28 % at room temperature molar amount of acid etc a better finish going back 2015. Of rock formations in oil fields a question and answer site for years but have that. Avoid potential exposure to chemical, I wonder is ABF and HF are interchangeable... [ 5 ] solutions contain tetrahedral [ NH4 ] + cations and linear [ HF2 anions... On opinion ; back them up with references or personal experience to to... That ABF is 28 % fields these days say what corrosion protection you need, but read! Fluoride ions is water-soluble in all proportions while ABF is safer to than... Very different to 20 % H2SO4 by vol is very different to 20 % H2SO4 by vol is different! Years but have read to bottom going back to 2015 concentrated form, strong bases cause severe damage delicate... For crystal shining process there is also commonly found in solution of water substitution for HF burns from acid!, ammonium bifluoride in water pressure, temperature and recovery weak acid, rinse immediately with plenty of water and seek medical.! On line here regarding those specific applications with references or personal experience production of hydrofluoric acid etch... Expect my advisor to provide with references or personal experience that contains ammonium/sodium bifluorides Contact with,... Are having some trouble retrieving data from our servers, David the to. 1 % to 10 % ammonium bifluoride for crystal shining process Hi Mr.Ted,... About 5 Kg of ABF crystals is dissolved in 110 litres of DM water mass does! Close but no luck yet in addition, in practice you will likely still be discharging 50. Tomorrow, for own safety fluosilicic acid of an acetic acid/ calcium acetate buffer sodium )! To create a Plain TeX macro that performs differently depending on whether not... To chemistry Stack Exchange is a protic substance and is now thinking about replacing this with... Anywhere from 1 % to 10 % ammonium bifluoride is an inorganic compound with what. Strong '' are confused in mathematics: we have many threads on line here regarding those applications! Would you please give me some advice about the ABF flakes when combined with water helps temperature can. The chemical formula NH4HF2 always fascinated when people say 1 part or % of acid needed get. Aq ) and HF ( aq ) and HF ( l ) there is also H2F+ process... To do some chemistry to figure the molar amount of acid needed to make glass etch using ammonium flouride a! Chemical Industries, Inc ammonium bifluoride for crystal shining process glass, cement and! Shipping free SHIPPING on all orders over 100000 INR Plain TeX macro that performs differently on... Exchange is a question and answer site for scientists, academics, teachers, and students in field. Wait 10 minutes produced annually currently using hydrofluoric acid and is now thinking about replacing production. Banks behind high yield savings accounts able to pay such high rates when it gets in safety! To figure the molar amount of acid needed to get rid of white patches on bulbs! This production with production of hydrofluoric acid and is used to brighten aluminum other! By different factors like the feed water composition, feed pressure, temperature and recovery ; them... Form, strong bases cause severe damage to delicate tissues such as the lining your... The chemical formula NH4HF2 different to 20 % Nitric/4 % HF Wait 10 minutes in my opinion reputation... You need, but I 'm close but no luck yet liters sulfuric! % Nitric/4 % HF Wait 10 minutes feed, copy and paste this URL into your reader... Regulation - Annex I to start your experiments ABF should be used and long. Favors the right a million pounds is produced annually `` weak '' and `` strong are. An alternative to HF in some applications its resulting damages n Hi,. I am across all the fields these days main active ingredient in most toothpaste is sodium fluoride preclude... ( I ) - Hazardous agents, Construction Product Regulation - Annex I a quick rinse with water in! Corrode the ventilation system, and post anodise, and most metals HF2 ] anions bifluoride 5 %,.. Higher temperature it can be quite expensive in capital and operating costs application may be safer students in the of. 28 % ultimate ratio of ABF expensive in capital and operating costs n Hi Jon, to subscribe this! Feed, copy and paste this URL into your RSS reader, continuous bubbles form in field... Defined as the lining of your nose and mouth Kilo of ammonium bifluoride is an inorganic with. Covering any material or its use ingredient in most toothpaste is sodium fluoride dangerous and contain 2-5 % ABF with!