PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Thiosemicarbazide; (1-Amino-2-thiourea) 79-19-6 2811
4.05
8.00
7.00
11.01
4.07
7.01
4.06
4.08
15.01
15.02
Formula Synonyms
CH5N3S THIOSEMICARBAZIDE, 1-AMINO-2-THIOUREA, 1-AMINOTHIOUREA, 2-THIOSEMICARBAZIDE, AMINOTHIOUREA, HYDRAZINECARBOTHIOAMIDE, ISOTHIOSEMICARBAZIDE, N-AMINO THIOUREA, N-AMINOTHIOUREA, SEMICARBAZIDE, THIO-, SEMICARBAZIDE,THIO-, SEMICARBIZIDE,3-THIO, THIASEMICARBAZIDE, THIOCARBAMOYLHYDRAZINE, THIOCARBAMYLHYDRAZINE, TSC, TSZ, USAF EK-1275
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
91.14 S 183
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
1.1 12 13
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.30 3.2 3.5
Technical Basis
No technical basis available
References
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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.