-
Name
Potassium fluorosilicate
- EINECS 240-896-2
- CAS No. 16871-90-2
- Article Data16
- CAS DataBase
- Density 2.665 g/mL at 25 °C(lit.)
- Solubility slightly soluble in water
- Melting Point °Cd ec.)
- Formula F6K2Si
- Boiling Point dec
- Molecular Weight 364.474
- Flash Point
- Transport Information UN 2655 6.1/PG 3
- Appearance white, odorless crystalline powder
- Safety 26-45
- Risk Codes 23/24/25
-
Molecular Structure
-
Hazard Symbols
T,
Xi
- Synonyms Potassiumfluosilicate (6CI);Silicate(2-), hexafluoro-, dipotassium (8CI,9CI);Potassium fluorosilicate (K2SiF6);Potassium hexafluorosilicate (K2SiF6);Potassiumsilicofluoride;Potassium silicon fluoride(K2SiF6);Potassium hexafluorosilicate;
- PSA 0.00000
- LogP 2.14040
Potassium hexafluorosilicate Consensus Reports
Reported in EPA TSCA Inventory.
Potassium hexafluorosilicate Standards and Recommendations
OSHA PEL: TWA 2.5 mg(F)/m3
ACGIH TLV: 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 (Inorganic Fluorides) 2.5 mg(F)/m3
DOT Classification: 6.1; Label: KEEP AWAY FROM FOOD
Potassium hexafluorosilicate Specification
Potassium hexafluorosilicate(CAS NO.16871-90-2) has the synonyms of Potassium fluosilicate; Potassium silicofluoride; Silicate(2-), hexafluoro-, dipotassium; Silicate(2-), hexafluoro-, potassium (1:2). has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive. Potassium hexafluorosilicate is mainly used for the preservation of timber, ceramics manufacturing, aluminum and magnesium smelting,optical glass manufacturing,etc.
You can still convert the following datas into molecular structure:
(1)InChI=1S/F6Si.2K/c1-7(2,3,4,5)6;;/q-2;2*+1;
(2)InChIKey=UUHPPUWEDCVPCO-UHFFFAOYSA-N;
(3)Smiles[Si-2](F)(F)(F)(F)(F)F.[K+].[K+];
The toxicity data is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| frog | LDLo | subcutaneous | 448mg/kg (448mg/kg) | Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. Vol. 124, Pg. 133, 1937. | |
| guinea pig | LD50 | oral | 500mg/kg (500mg/kg) | "Pesticide Index," Frear, E.H., ed., State College, PA, College Science Pub., 1969Vol. 4, Pg. 327, 1969. | |
| guinea pig | LDLo | subcutaneous | 500mg/kg (500mg/kg) | Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. Vol. 124, Pg. 133, 1937. | |
| mouse | LD50 | oral | 70mg/kg (70mg/kg) | PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE) BEHAVIORAL: ATAXIA BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 53(11), Pg. 80, 1988. |
| rat | LD50 | oral | 156mg/kg (156mg/kg) | BEHAVIORAL: ATAXIA PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE) BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 53(11), Pg. 80, 1988. |
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