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27685-40-1

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Basic Information
CAS No.: 27685-40-1
Name: silicon(4+) thallium(1+) fluoride (1:2:6)
Molecular Structure:
Molecular Structure of 27685-40-1 (silicon(4+) thallium(1+) fluoride (1:2:6))
Formula: F6Si . 2 Tl
Molecular Weight: 346.46
Synonyms: Thalliumfluosilicate (Tl2SiF6) (6CI); Dithallium hexafluorosilicate; Dithalliumhexafluorosilicate(2-)
Boiling Point: 19.5°C at 760 mmHg
Safety: Poison by ingestion. When heated to decomposition it emits toxic fumes of F− and Tl. See also THALLIUM COMPOUNDS and FLUORIDES.
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Chemistry

THALLIUM(I) FLUOSILICATE (27685-40-1) has the Molecular Formula of F6Si.Tl and the Molecular Weight of 346.46. The property of  THALLIUM(I) FLUOSILICATE (27685-40-1) ,such as IDLH ,is 15 mg/m3 .

Toxicity Data With Reference

1.   

orl-rat LDLo:50 mg/kg

   NCNSA6    National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. 5 (1953),1.

Consensus Reports

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

1.   

OSHA PEL:8H TWA 0.1 mg(Tl)/m3 (skin)


Standards and Recommendations:

ACGIH TLV: TWA 0.1 mg(Tl)/m3; TWA 2.5 mg(F)/m3; BEI: 3 mg/g creatinine of fluorides in urine prior to shift; 10 mg/g creatinine of fluorides in urine at end of shift.

NIOSH REL: TWA 2.5 mg(F)/m3

Safety Profile

Poison by ingestion. When heated to decomposition THALLIUM(I) FLUOSILICATE (27685-40-1) emits toxic fumes of F− and Tl. See also THALLIUM COMPOUNDS and FLUORIDES.

Standards and Recommendations

ACGIH TLV: TWA 0.1 mg(Tl)/m3; TWA 2.5 mg(F)/m3; BEI: 3 mg/g creatinine of fluorides in urine prior to shift; 10 mg/g creatinine of fluorides in urine at end of shift.
NIOSH REL: TWA 2.5 mg(F)/m3