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| CAS No.: | 25808-74-6 |
|---|---|
| Name: | LEAD SILICOFLUORIDE |
| Molecular Structure: | |
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|
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| Formula: | F6Si . Pb |
| Molecular Weight: | 349.276 |
| Synonyms: | Leadfluosilicate (PbSiF6) (6CI); Lead hexafluorosilicate (7CI); Silicate(2-),hexafluoro-, lead(2+) (8CI); Lead fluorosilicate; Lead hexafluorosilicate(PbSiF6); Lead silicon fluoride (PbSiF6); Lead(2+) hexafluorosilicate(2-) |
| EINECS: | 247-278-1 |
| Density: | g/cm3 |
| Boiling Point: | 19.5 °C at 760 mmHg |
| Flash Point: | °C |
| Hazard Symbols: | Toxic. Strong irritant. TLV: 0.15 mg(Pb)/m3. |
| Risk Codes: | 61-62-20/22-33-50/53 |
| Safety: | Poison by ingestion. When heated to decomposition it emits very toxic fumes of F− and Pb. See also LEAD COMPOUNDS. |
| PSA: | 0.00000 |
| LogP: | 1.75960 |
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Chemistry
IUPAC: Hexafluorosilicon(2-); lead(2+)
Lead(II) fluorosilicate with CAS NO. of 25808-74-6 is also called for Lead hexafluorosilicate ; EINECS 247-278-1 ; Lead fluorosilicate ; Lead fluosilicate (PbSiF6) (6CI) ; Lead silicon fluoride (PbSiF6) ; Lead(2+) hexafluorosilicate(2-) and so on.
Molecular Formula: F6PbSi
Molecular Weight: 349.28
EINECS: 247-278-1
Heavy Atom Count: 8
Formal Charge: 0
Complexity: 62.7
Isotope Atom Count: 0
Defined Atom StereoCenter Count: 0
Undefined Atom StereoCenter Count: 0
Defined Bond StereoCenter Count: 0
Undefined Bond StereoCenter Count: 0
Covalently-Bonded Unit Count: 2
Enthalpy of Vaporization: 25.54 kJ/mol
Boiling Point: 19.5°C at 760 mmHg
Vapour Pressure: 922 mmHg at 25°C
The molecular structure of Lead(II) fluorosilicate with CAS NO. of 25808-74-6:
Uses
Lead(II) fluorosilicate with CAS NO. of 25808-74-6 is used as agricultural chemical and experimental pesticide.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rat | LDLo | oral | 250mg/kg (250mg/kg) | National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. Vol. 5, Pg. 27, 1953. |
Consensus Reports
Lead and its compounds are on the Community Right-To-Know List. Reported in EPA TSCA Inventory.
Safety Profile
Poison by ingestion. When heated to decomposition it emits very toxic fumes of F− and Pb. See also LEAD COMPOUNDS.
Hazard Codes: T
,N 
Risk Statements: 61-62-20/22-33-50/53
R61:May cause harm to the unborn child.
R62:Risk of impaired fertility.
R20/22:Harmful by inhalation and if swallowed.
R33:Danger of cumulative effects.
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 53-45-60-61
S53:Avoid exposure - obtain special instructions before use.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S60:This material and its container must be disposed of as hazardous waste.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN2291
HazardClass: 6.1
PackingGroup: III
Standards and Recommendations
OSHA PEL: TWA 0.05 mg(Pb)/m3
ACGIH TLV: TWA 0.15 mg(Pb)/m3
NIOSH REL: (Lead, Inorganic):10H TWA 0.10 mg(Pb)/m3
DOT Classification: 6.1; Label: KEEP AWAY FROM FOOD