Ammonium fluoroborate

  • Ammonium tetrafluoroborate
Formula
NH4BF4
Structure
Description
Odorless white crystals.
Uses
Mainly used for the hi-temp fluxing action required by the metals industry, catalyst, in flame retardants, acts as a solid lubricant in cutting-oil emulsions for aluminum rolling and forming.

Registry Numbers and Inventories.
CAS
13826-83-0
EC (EINECS/ELINCS)
237-531-4
RTECS
BQ6100000
RTECS class
Other
UN (DOT)
9088
Beilstein/Gmelin
78759 (G)
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
BF4H4N
Formula mass
104.84
Melting point, °C
510
Density
1.87 g/cm3
Solubility in water
970 g /L
Heat of vaporization
35.1 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.
Stability
Moisture sensitive material.
Incompatibilities
Strong acids, strong bases.
Decomposition
Nitric oxide (NOx) and ammonia (NH3) fumes, hydrogen fluoride.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use agent most appropriate to extinguish fire.
Fire potential
Nonflammable.
Hazards
Sublimes above 238C yielding toxic fumes.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
Acute exposure to boron trifluoride gas has resulted in rapid loss of consciousness.
   Ingestion
The toxicological properties of this substance have not been fully investigated.
   Inhalation
The toxicological properties of this substance have not been fully investigated. Inhalation of dust may cause respiratory tract irritation.
   Skin
No information regarding skin irritation and other potential effects was found.
   Eyes
No information regarding eye irritation and other potential effects was found.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
9088
Response guide
Hazard class
8.3
USCG CHRIS Code
AFB