Agent Name |
Ammonium bifluoride |
CAS Number |
1341-49-7 |
Formula |
F2-H.H4-N |
Major Category |
Other Classes |
Synonyms |
Acid ammonium fluoride; Ammonium acid fluoride; Ammonium bifluoride; Ammonium difluoride; Ammonium fluoride ((NH4)(HF2)); Ammonium fluoride comp. with hydrogen fluoride (1:1); Ammonium hydrofluoride; Ammonium hydrogen bifluoride; Ammonium hydrogen difluoride; Ammonium hydrogen fluoride; Fluorure acide d'ammonium [French]; [ChemIDplus] UN1727 (Solid); UN2817 (Solution) |
Category |
Fluorides, Inorganic |
Description |
White crystals, soluble in water; [CAMEO] Hygroscopic; Available as flakes, granules, and solutions; Impurities at <1% include hydrogen fluoride and ammonium fluoride; [CHEMINFO] |
Sources/Uses |
Used in chemical analyses, electroplating, and disinfecting food processing equipment; [CAMEO] |
Comments |
Produces weak hydrofluoric acid when dissolved in water; Corrosive; [CAMEO] Decomposes when heated above 454 deg F forming toxic and corrosive hydrogen fluoride gas; [CHEMINFO] Repeated, heavy exposures could cause fluorosis. [NJ-HSFS] |
Exposure Assessment |
BEI |
Fluorides in urine = 3 mg/g creatinine prior to shift or 10 mg/g creatinine at end of shift; |
TLV (ACGIH) |
2.5 mg/m3, as F |
PEL (OSHA) |
2.5 mg/m3, as F |
MAK |
1 mg/m3, as F |
IDLH (NIOSH) |
250 mg/m3, as F |
Explanatory Notes |
mp = 258 deg F;[CHEMINFO] ERG guide is for both solid ammonium bifluoride and solutions. |
Adverse Effects |
Dermatotoxin |
Skin Burns |
Links to Other NLM Databases |
Health Studies |
Human Health Effects from Hazardous Substances Data Bank: AMMONIUM BIFLUORIDE
|
|
|