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Basic Information
CAS No.: 12037-82-0
Name: Phosphorus hepta sulfide
Article Data: 30
Molecular Structure:
Molecular Structure of 12037-82-0 (Phosphorus hepta sulfide)
Formula: P4S7
Molecular Weight: 348.357
Synonyms: Phosphorus hepta sulfide;tetraphosphorus heptasulphide
Density: 2.190
Melting Point: 308°C
Boiling Point: 523°C
Solubility: slightly soluble carbon disulfide [HAW93]
Hazard Symbols: Flammable, dangerous fire risk.
Safety: A poison by ingestion. Flammable when exposed to heat or flame; can react vigorously with oxidizing materials. When heated to decomposition it emits very toxic fumes of POx and SOx. See also SULFIDES and PHOSPHORUS (red); PHOSPHORUS (yellow).
PSA: 234.47000
LogP: 7.98220
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Chemistry

IUPAC Name: Didodecyl benzene-1,2-dicarboxylate
Synonyms of Phosphorus heptasulfide (CAS NO.12037-82-0): AI3-15015 ; EINECS 234-868-9 ;  Phosphorus sulfide (P4S7) ; Tetraphosphorus heptasulphide ; Phosphorus heptasulfide, free from yellow or white phosphorus ; Phosphorus heptasulfide, free from yellow or white phosphorus [UN1339] [Flammable solid] ; UN1339
CAS NO: 12037-82-0 
Molecular Formula Phosphorus heptasulfide (CAS NO.12037-82-0): P4S7 
Molecular Weight: 348.350044     
Molecular Structure:

Safety Profile

RIDADR: 1339
HazardClass: 4.1
PackingGroup: II
A poison by ingestion. Flammable when exposed to heat or flame; can react vigorously with oxidizing materials. When heated to decomposition it emits very toxic fumes of POx and SOx. See also SULFIDES and PHOSPHORUS (red); PHOSPHORUS (yellow).

Standards and Recommendations

DOT Classification:  4.1; Label: Flammable Solid

Specification

Reactivity Profile: Phosphorus heptasulfide (CAS NO.12037-82-0) is a reducing agent. Simple salts of sulfides (such as sodium, potassium, and ammonium sulfide) react vigorously with acids to release hydrogen sulfide gas. Can react vigorously with oxidizing agents including inorganic oxoacids, organic peroxides and epoxides.