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| AMMONIUM FLUORIDE |  |
Chemical Identifiers | Hazards | Response Recommendations | Physical Properties | Regulatory Information | Alternate Chemical Names
Chemical Identifiers
What is this information?
The Chemical Identifier fields include common identification numbers, the NFPA diamond U.S. Department of Transportation hazard labels, and a general description of the chemical. The information in CAMEO Chemicals comes from a variety of data sources.
| CAS Number | UN/NA Number | DOT Hazard Label | USCG CHRIS Code |
| | | | -
 AFR |
| NIOSH Pocket Guide | International Chem Safety Card |
| none | - AMMONIUM FLUORIDE
 |
NFPA 704
| Diamond | Hazard | Value | Description |
| |  Health | 3 | Can cause serious or permanent injury. |
 Flammability | 0 | Will not burn under typical fire conditions. |
 Instability | 0 | Normally stable, even under fire conditions. |
 Special |
(NFPA, 2010) General Description Ammonium fluoride is a white crystalline solid. It is soluble in water. It is noncombustible. It is corrosive to aluminum. It is used in chemical analysis, in brewing, and as a preservative for wood.
Hazards
What is this information?
The Hazard fields include special hazard alerts air and water reactions, fire hazards, health hazards, a reactivity profile, and details about reactive groups assignments and potentially incompatible absorbents. The information in CAMEO Chemicals comes from a variety of data sources. Reactivity Alerts
none Air & Water Reactions Dissolves in water and forms dilute solution of hydrofluoric acid. May corrode glass, cement, and most metals (USCG, 1999). Water soluble. Fire Hazard Special Hazards of Combustion Products: Toxic ammonia and hydrogen fluoride gases are formed in fires. Behavior in Fire: May sublime when hot and condense on cool surfaces (USCG, 1999) Health Hazard Inhalation of dust may cause irritation of respiratory system. Ingestion is harmful; readily soluble fluorides may be fatal if relatively small quantities are swallowed. Contact with eyes causes local irritation of the mucous membrane. Contact with skin may cause burns. High concs. of fluorine in the urine have been reported following skin contact. (USCG, 1999) Reactivity Profile Ammonium fluoride reacts with water to form hydrofluoric acid, a source of fluoride ions. Unlike other halide ions, the fluoride ion is quite reactive, acting as a weak base and participating in some unique reactions. In particular, fluorides react strongly with compounds containing calcium, magnesium, or silicon ions, which means that solutions containing soluble fluorides are corrosive to both living tissue and glass. Hydrofluoric acid can cause severe chemical burns and is one of the few materials that can etch glass. It is also a toxic gas in its anhydrous form. Belongs to the Following Reactive Group(s)
- Salts, Acidic
- Fluoride Salts, Soluble
Potentially Incompatible Absorbents
Use caution: Liquids with this reactive group classification have been known to react with the absorbents listed below. More info about absorbents, including situations to watch out for...
- Mineral-Based & Clay-Based Absorbents
- Sand
- Dirt/Earth
Response Recommendations
What is this information?
The Response Recommendation fields include isolation and evacuation distances, as well as recommendations for firefighting, non-fire response, protective clothing, and first aid. The information in CAMEO Chemicals comes from a variety of data sources. Isolation and Evacuation Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary. FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024) Firefighting Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: SMALL FIRE: Dry chemical, CO2 or water spray. LARGE FIRE: Dry chemical, CO2, alcohol-resistant foam or water spray. If it can be done safely, move undamaged containers away from the area around the fire. Dike runoff from fire control for later disposal. FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Do not get water inside containers. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. (ERG, 2024) Non-Fire Response Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2024) Protective Clothing Dust mask; goggles or face shield; rubber gloves (USCG, 1999) DuPont Tychem® Suit Fabrics Fabric legend, testing details, and a caution from DuPont
Tychem® Fabric Legend
| QS = Tychem 2000 SFR |
| QC = Tychem 2000 |
| SL = Tychem 4000 |
| C3 = Tychem 5000 |
| TF = Tychem 6000 |
| TP = Tychem 6000 FR |
| RC = Tychem RESPONDER® CSM |
| TK = Tychem 10000 |
| RF = Tychem 10000 FR |
Testing Details The fabric permeation data was generated for DuPont by a third party laboratory. Permeation data for industrial chemicals is obtained per ASTM F739. Normalized breakthrough times (the time at which the permeation rate exceeds 0.1 μg/cm2/min) are reported in minutes. All chemicals have been tested between approximately 20°C and 27°C unless otherwise stated. All chemicals have been tested at a concentration of greater than 95% unless otherwise stated. Chemical warfare agents (Lewisite, Sarin, Soman, Sulfur Mustard, Tabun and VX Nerve Agent) have been tested at 22°C and 50% relative humidity per military standard MIL-STD-282. "Breakthrough time" for chemical warfare agents is defined as the time when the cumulative mass which permeated through the fabric exceeds the limit in MIL-STD-282 [either 1.25 or 4.0 μg/cm2]. A Caution from DuPont This information is based upon technical data that DuPont believes to be reliable on the date issued. It is subject to revision as additional knowledge and experience are gained. The information reflects laboratory performance of fabrics, not complete garments, under controlled conditions. It is intended for informational use by persons having technical skill for evaluation under their specific end-use conditions, at their own discretion and risk. It is the user's responsibility to determine the level of toxicity and the proper personal protective equipment needed. Anyone intending to use this information should first verify that the garment selected is suitable for the intended use. In many cases, seams and closures have shorter breakthrough times and higher permeation rates than the fabric. If fabric becomes torn,abraded or punctured, or if seams or closures fail, or if attached gloves, visors, etc. are damaged, end user should discontinue use of garment to avoid potential exposure to chemical. Since conditions of use are outside our control, DuPont makes no warranties, express or implied, including, without limitation, no warranties of merchantability or fitness for a particular use and assume no liability in connection with any use of this information. This information is not intended as a license to operate under or a recommendation to infringe any patent, trademark or technical information of DuPont or others covering any material or its use.
Normalized Breakthrough Times (in Minutes) | Chemical | CAS Number | State | QS | QC | SL | C3 | TF | TP | RC | TK | RF |
| Ammonium fluoride (40%) | 12125-01-8 | Liquid | >480 | >480 | >480 | >480 |
> indicates greater than.
Special Warning from DuPont: Tychem® and Tyvek® fabrics should not be used around heat, flames, sparks or in potentially flammable or explosive environments. Only...
More Info...
...Tychem® ThermoPro, Tychem® Reflector® and Tychem® TK styles 600T/601T (with aluminized outer suit) garments are designed and tested to help reduce burn injury during escape from a flash fire. Users of Tychem® ThermoPro, Tychem® Reflector® and Tychem® TK styles 600T/601T (with aluminized outer suit) garments should not knowingly enter an explosive environment. Tychem® garments with attached socks must be worn inside protective outer footwear and are not suitable as outer footwear. These attached socks do not have adequate durability or slip resistance to be worn as the outer foot covering.
(DuPont, 2024)
First Aid Begin first aid as quickly as possible. INHALATION: remove to fresh air. INGESTION: perform gastric lavage with limewater or 1% calcium chloride solution; support respiration; call a physician. EYES: flush with water for 15 min.; consult physician. SKIN: shower immediately with large quantities of water; remove all contaminated clothing in the shower at once; consult physician. (USCG, 1999)
Physical Properties
What is this information?
The Physical Property fields include properties such as vapor pressure and boiling point, as well as explosive limits and toxic exposure thresholds The information in CAMEO Chemicals comes from a variety of data sources.
Note: For Vapor Density and Specific Gravity, comparing the value to 1.0 can tell you if the chemical will likely sink/rise in air or sink/float in fresh water (respectively). Short phrases have been added to those values below as an aid. However, make sure to also consider the circumstances of a release. The Vapor Density comparisons are only valid when the gas escaping is at the same temperature as the surrounding air itself. If the chemical is escaping from a container where it was pressurized or refrigerated, it may first escape and behave as a heavy gas and sink in the air (even if it has a Vapor Density value less than 1). Also, the Specific Gravity comparisons are for fresh water (density 1.0 g/mL). If your spill is in salt water (density about 1.027 g/mL), you need to adjust the point of comparison. There are some chemicals that will sink in fresh water and float in salt water.
Flash Point: data unavailable Lower Explosive Limit (LEL): data unavailable Upper Explosive Limit (UEL): data unavailable Autoignition Temperature: data unavailable Melting Point: data unavailable Vapor Pressure: data unavailable Vapor Density (Relative to Air): data unavailable Specific Gravity: 1.32 at 77°F (USCG, 1999) - Denser than water; will sink
Boiling Point: 212°F at 760 mmHg (USCG, 1999)
Molecular Weight: 37.04 (USCG, 1999)
Water Solubility: data unavailable Ionization Energy/Potential: data unavailable IDLH: data unavailable AEGLs (Acute Exposure Guideline Levels)
No AEGL information available. ERPGs (Emergency Response Planning Guidelines)
No ERPG information available. PACs (Protective Action Criteria)
| Chemical | PAC-1 | PAC-2 | PAC-3 |
| Ammonium fluoride (12125-01-8) | 7.5 mg/m3 | 83 mg/m3 | 500 mg/m3 |
(DOE, 2024)
Regulatory Information
What is this information?
The Regulatory Information fields include information from the U.S. Environmental Protection Agency's Title III Consolidated List of Lists, the U.S. Cybersecurity and Infrastructure Security Agency's Chemical Facility Anti-Terrorism Standards, and the U.S. Occupational Safety and Health Administration's Process Safety Management of Highly Hazardous Chemicals Standard List (see more about these data sources).
EPA Consolidated List of Lists
| Regulatory Name | CAS Number/313 Category Code | EPCRA 302EHS TPQ | EPCRA 304EHS RQ | CERCLA RQ | EPCRA 313TRI | RCRACode | CAA 112(r)RMP TQ |
| Ammonium fluoride | 12125-01-8 | 100 pounds |
(EPA List of Lists, 2024)
CISA Chemical Facility Anti-Terrorism Standards (CFATS)
No regulatory information available. OSHA Process Safety Management (PSM) Standard List
No regulatory information available. Alternate Chemical Names
What is this information?
This section provides a listing of alternate names for this chemical, including trade names and synonyms.
- AMMONIUM FLUORIDE
- AMMONIUM FLUORIDE (FH4N)
- AMMONIUM FLUORIDE (NH4F)
- NEUTRAL AMMONIUM FLUORIDE
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CAMEO Chemicals version 3.1.0 rev 2.
