PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ammonium fluoborate | 13826-83-0 | 9088 |
14.01
11.01
15.02
12.00
4.07
4.09
4.01
3.03
4.02
|
|||||||||
| Formula | Synonyms | |||||||||||
| BF4H4N | AMMONIUM FLUOBORATE, AMMONIUM BOROFLUORIDE, AMMONIUM BOROFLUORIDE (NH4BF4), AMMONIUM FLUOROBORATE, AMMONIUM FLUOROBORATE (NH4BF4), AMMONIUM TETRAFLUOBORATE, AMMONIUM TETRAFLUOROBORATE, AMMONIUM TETRAFLUOROBORATE (NH4BF4), AMMONIUM TETRAFLUOROBORATE(1-), FLUOBORATE D^AMMONIUM (DOT FRENCH), FLUOROBORATO DE AMONIO (DOT SPANISH) | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 104.86 | S | 230 | 1.871 @ 15°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 10 | 110 | 690 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 2.3 | 26 | 160 |
Technical Basis
A review of available sources did not identify exposure limits or acute toxicity data for ammonium fluoroborate. Analysts evaluated fluoride exposure limits (no CASRN) for TEEL development. Data sources were selected according to the hierarchy listed in Table 3.1. The 1990 and 1994 IDLH were evaluated; the 1990 and 1994 cite the same sources, with the 1994 revision attributing consideration of chronic toxicity in addition. Considering this, the 1990 fluoride IDLH was selected as the TEEL-3 basis and a compound adjustment factor was applied (Section 3.2.2). The TEEL-2 value was derived according to Table 3.5. The fluoride TLV-TWA was selected as the TEEL-3 basis and a compound adjustment factor was applied (Section 3.2.2).
• PAC-1 = TEEL-1 = MW-adjusted TLV-TWA (fluoride, as F; 2.5 mg/m3) x 3
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = MW-adjusted IDLH (fluoride, as F; 500 mg/m3)
This review generated PAC-1 and PAC-3 values consistent with Rev. 29A, and an inconsistent PAC-2 value. The Rev. 29A and current TEEL-1 and TEEL-3 values, sources, and methodology remain consistent. The Rev. 29A and current TEEL-2 us the same methodology; as such, differences in the values may be due to rounding.
• PAC-1 = TEEL-1 = MW-adjusted TLV-TWA (fluoride, as F; 2.5 mg/m3) x 3
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = MW-adjusted IDLH (fluoride, as F; 500 mg/m3)
This review generated PAC-1 and PAC-3 values consistent with Rev. 29A, and an inconsistent PAC-2 value. The Rev. 29A and current TEEL-1 and TEEL-3 values, sources, and methodology remain consistent. The Rev. 29A and current TEEL-2 us the same methodology; as such, differences in the values may be due to rounding.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Ammonium-tetrafluoroborate.
IDLH; https://www.cdc.gov/niosh/idlh/fluoride.html
Exposure limits: https://www.osha.gov/chemicaldata/806