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Basic Information
CAS No.: 63981-49-7
Name: tris(2-ethylhexyl) phosphite - dichloromercury (1:1)
Molecular Structure:
Molecular Structure of 63981-49-7 (tris(2-ethylhexyl) phosphite - dichloromercury (1:1))
Formula: C24H51 Cl2 Hg O3 P
Molecular Weight: 690.21
Synonyms: Phosphorousacid, tris(2-ethylhexyl) ester, mercury complex
Boiling Point: 446.7°C at 760 mmHg
Flash Point: 278.6°C
Safety: Poison by intraperitoneal route. When heated to decomposition it emits very toxic fumes of Hg, Cl−, and POx. See also individual components.
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Chemistry

Molecular Structure of Mercury(ii) chloride complex with tris(2-ethylhexyl) phosphite (CAS NO.63981-49-7):

IUPAC Name: dichloromercury; tris(2-ethylhexyl) phosphite
Empirical Formula: C24H51Cl2HgO3P 
Molecular Weight: 690.1297 
Flash Point: 278.6 °C
Enthalpy of Vaporization: 67.78 kJ/mol 
Boiling Point: 446.7 °C at 760 mmHg
Vapour Pressure: 9.37E-08 mmHg at 25°C 
Classification Code : Mutation data
Synonyms of Mercury(ii) chloride complex with tris(2-ethylhexyl) phosphite (CAS NO.63981-49-7): Mercury(II) chloride complex with tris(2-ethylhexyl) phosphite ; Phosphorous acid, tris(2-ethylhexyl) ester, complex with mercury(II) chloride (1:1)
 

Toxicity Data With Reference

1.    

ipr-mus LDLo:62,500 µg/kg

     CBCCT*    “Summary Tables of Biological Tests“ National Research Council Chemical-Biological Coordination Center. 7 (1955),791.

Consensus Reports

Mercury and its compounds are on the Community Right-To-Know List.

Safety Profile

Poison by intraperitoneal route. When heated to decomposition it emits very toxic fumes of Hg, Cl−, and POx. See also individual components.

Standards and Recommendations

NIOSH REL: (Mercury, Organo) TWA 0.01 mg/m3; STEL 0.03 mg/m3 (skin)