PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Sodium bicarbonate 144-55-8
4.01
7.01
8.00
11.00
4.09
4.06
4.07
3.08
10.00
3.09
Formula Synonyms
CHNaO3 SODIUM BICARBONATE, BAKING SODA, BICARBONATE OF SODA, CARBONIC ACID MONOSODIUM SALT, CARBONIC ACID SODIUM SALT (1:1), CARBONIC ACID, MONOSODIUM SALT, COL-EVAC, DP 35/22, EXTIN B, JUSONIN, MEYLON, MONOSODIUM CARBONATE, MONOSODIUM HYDROGEN CARBONATE, NEUT, SODA, SODA MINT, SODIUM ACID CARBONATE, SODIUM CARBONATE (NA(HCO3)), SODIUM HYDROCARBONATE, SODIUM HYDROGEN CARBONATE, SODIUM MONOHYDROGEN CARBONATE, SOLUDAL
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
84.01 S 2.2
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
13 140 840
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
3.8 41 240
Technical Basis
A review of available sources identified numerous animal toxicity sources. Data sources were selected according to the hierarchy listed in Table 3.1. Toxicity data were selected according to type of exposure, species, and route based on the hierarchies stated in Sections 3.3.1, 3.3.2, and evaluated using factors in Tables 3.2, 3.3, and 3.4. Of available sources, a rat oral LD50 was the most preferred and it was selected as the TEEL-3 basis. TEEL-2 and TEEL-1 values were calculated according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (4220 mg/kg)
This review generated TEEL values consistent with those in Rev. 29A.
References
Rat oral LD50: Toxicology and Applied Pharmacology., 6(726), 1964: via PubChem; National Center for Biotechnology Information (2023). PubChem Compound Summary for CID 516892, Sodium Bicarbonate. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/Sodium-Bicarbonate
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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.