PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Calcium hypochlorite; (Calcium oxychloride) 7778-54-3 1748
14.01
4.01
11.01
14.02
4.08
7.01
8.00
11.00
4.07
4.11
Formula Synonyms
CaCl2O2 CALCIUM HYPOCHLORITE, CALCIUM HYPOCHLORITE, HYDRATED MIXTURE, WITH NOT LESS THAN 5, B-K POWDER, BLEACHING POWDER, CALCIUM HYPOCHLORITE, CALCIUM HYPOCHLORITE, HYDRATED, WITH NOT LESS THAN 5.5% BUT, CALCIUM OXYCHLORIDE, CAPORIT, CHEMICHLON G, CHLORIDE OF LIME, CHLORINATED LIME, CHLORO LIME CHEMICAL, EUSOL BPC, HIPOCLORITO DE CALCIO, HIDRATADO, CON NO MENOS DEL 5.5% Y UN, HIPOCLORITO DE CALCIO, MEZCLA HIDRATADA DE, CON NO MENOS DEL, HTH, HTH (BLEACHING AGENT), HYPOCHLORITE DE CALCIUM EN MÉLANGE, HYDRATÉ, CONTENANT AU MO, HYPOCHLORITE DE CALCIUM, HYDRATÉ, CONTENANT AU MOINS 5,5% MA, LIME CHLORIDE, LOSANTIN, NISSO HI-CHLON LC, SOLVOX KS, T-EUSOL
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
142.98 S 100 2.35
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
2.6 28 170
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.44 4.8 29
Technical Basis
A review of limited sources identified rat oral LD50 toxicity data that was selected as the TEEL-3 basis and evaluated using factors in Tables 3.2, 3.3, and 3.4. TEEL-1 and -2 values were derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (850 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A*.
References
Chemical information: https://comptox.epa.gov/dashboard/chemical/details/DTXSID1029700
Rat oral LD50: Pesticide & Toxic Chemical News. Vol. 9, Pg. 21, 1980. Found under Hazard “Lethality Effect Level” in: https://comptox.epa.gov/dashboard/chemical/hazard/DTXSID1029700
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PAC values marked with a subscript "A" correspond to 60-minute AEGL values.
PAC values marked with a subscript "E" correspond to ERPG values.
PAC values marked by * are >= 10% lower explosive limit (LEL) but < 50% LEL.
PAC values marked by ** are > 50% LEL but < 100% LEL.
PAC values marked by *** are >= LEL.