PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ammonium pentaborate | 12007-89-5 |
15.01
11.01
4.07
16.02
|
||||||||||
| Formula | Synonyms | |||||||||||
| B5H4NO8 | AMMONIUM PENTABORATE, AMMONIUM DECABORATE OCTAHYDRATE, AMMONIUM PENTABORATE TETRAHYDRATE | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 272.14 | S | 1.57 @ 20°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 30 | 330 | 2000 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 2.7 | 30 | 180 |
Technical Basis
A review of available sources identified no acute toxicity data or exposure limits for ammonium pentaborate. Reported GHS health hazard ratings were considered for TEEL development, however only 10% of 38 reports indicated acute oral toxicity or skin/eye irritation. Considering this, the PNOS TLV-TWA was selected as the TEEL-1 basis (Section 3.5.2). TEEL-3 and TEEL-2 values were derived according to Table 3.5.
• PAC-1 = TEEL-1 = TLV-TWA (PNOS, 10 mg/m3) x 3
• PAC-2 = TEEL-2 = TEEL-1 x 11
• PAC-3 = TEEL-3 = TEEL-2 x 6
This review generated PAC values consistent with Rev. 29A*.
• PAC-1 = TEEL-1 = TLV-TWA (PNOS, 10 mg/m3) x 3
• PAC-2 = TEEL-2 = TEEL-1 x 11
• PAC-3 = TEEL-3 = TEEL-2 x 6
This review generated PAC values consistent with Rev. 29A*.
References
Chemical information and GHS hazards retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/131634794