PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sodium hypochlorite pentahydrate | 10022-70-5 |
14.01
11.01
14.02
4.05
7.01
4.01
11.00
4.07
3.05
7.11
|
||||||||||
| Formula | Synonyms | |||||||||||
| ClHO.Na.5H2O | SODIUM HYPOCHLORITE, LIQUID BLEACH | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 165.55 | L | 1.21 @ 20°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.66 | 7.2 | 43 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 4.5 | 49 | 290 |
Technical Basis
A review of available data sources identified the following: LC50 and LD50 (rat, rabbit) oral exposures. Species and route are ranked according to the preferences stated in Section 3.3.2, while the data source was evaluated according to the hierarchy listed in Table 3.1. Rat LC50 toxicity data was determined to be the most preferred basis and it was selected to estimate a TEEL-3 value. TEEL-2 and TEEL-1 values were calculated from this TEEL-3 value, according to guidance in Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Estimated from rat 1-hr LC50
This review generated TEEL values inconsistent with those published in Rev. 29A.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Estimated from rat 1-hr LC50
This review generated TEEL values inconsistent with those published in Rev. 29A.
References
BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets., 18-4/1970; via https://pubchem.ncbi.nlm.nih.gov/compound/Sodium-hypochlorite-pentahydrate