Hexafluorosilicate
Hexafluorosilicate structure
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Common Name | Hexafluorosilicate | ||
|---|---|---|---|---|
| CAS Number | 16961-83-4 | Molecular Weight | 144.09200 | |
| Density | 1.22 g/mL at 25 °C | Boiling Point | 108-109°C | |
| Molecular Formula | H2SiF6 | Melting Point | N/A | |
| MSDS | Chinese | Flash Point | 108-109°C | |
| Symbol |
GHS05, GHS06 |
Signal Word | Danger | |
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Effects of ammonium hexafluorosilicate concentration on dentin tubule occlusion and composition of the precipitate.
Dent. Mater. 26(1) , 29-34, (2010) Ammonium hexafluorosilicate [SiF: (NH(4))(2)SiF(6)] was prepared in order to overcome the tooth discoloration caused by diamine silver fluoride [AgF: (NH(3))(2)AgF] application. We employed a single concentration of SiF solution in our previous study; therefo... |
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Microtensile bond strength of two single-step adhesive systems to bur-prepared dentin.
J. Adhes. Dent. 3(2) , 129-36, (2001) To compare the microtensile bond strength (MTBS) of two single-step adhesive systems to two types of bur-prepared dentin.Using either of two adhesives, the experimental MZ-2000 (MZ) and the commercial One-Up Bond F (OUB), resin composite was bonded to flat bu... |
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Hypoxic pulmonary vasoconstriction is not potentiated by repeated intermittent hypoxia in closed chest dogs.
Anesthesiology 63(6) , 608-10, (1985) Hypoxic pulmonary vasoconstrictor (HPV) responses were measured with repeated intermittent hypoxic challenges in eight non-traumatized closed chest dogs anesthetized with pentobarbital. The right lung was ventilated continuously with 100% O2 while the left lu... |
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Community health effects of a municipal water supply hyperfluoridation accident.
Am. J. Public Health 78(6) , 711-3, (1988) For 12 hours, excess hydrofluorosilicic acid was diverted to a 127-home community water supply. Fluoride levels peaked at 51 parts per million (ppm). Water acidification caused copper to leach from the domestic plumbing; raising copper levels to 25-41 ppm. Fi... |
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Recovery of high surface area mesoporous silica from waste hexafluorosilicic acid (H2SiF6) of fertilizer industry.
J. Hazard. Mater. 173(1-3) , 576-80, (2010) In this article we report recovery of mesoporous silica from the waste material (hexafluorosilicic acid) of phosphate fertilizer industry. The process involves the reaction of hexafluorosilicic acid (50 ml, 24 wt% H(2)SiF(6)) and 100ml, 0.297 M Na(2)CO(3) to ... |
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Separative recovery with lime of phosphate and fluoride from an acidic effluent containing H3PO4, HF and/or H2SiF6.
J. Hazard. Mater. 170(2-3) , 962-8, (2009) Fluoride content and flow-rate of fertilizer plant wastewater from phosphoric acid and/or triple superphosphate (TSP) production lead to the discharge of several thousand tons of fluoride (F(-)) per year and even more for phosphate (PO4(3-)). Since sustainabi... |
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Pharmacokinetics of ingested fluoride: lack of effect of chemical compound.
Arch. Oral Biol. 53(11) , 1037-41, (2008) Fluoride in drinking water may be present from natural sources or added as sodium fluoride (NaF), sodium silicofluoride (Na(2)SiF(6)) or fluorosilicic acid (H(2)SiF(6)). Results from an early study with rats suggested that, when ingested as Na(2)SiF(6), the a... |
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Photonuclear activation ratios in fluorine compounds; an index of bremsstrahlung quality.
Med. Phys. 11(4) , 474-9, (1984) Samples of potassium hexafluorosilicate (K2SiF6) and polytetrafluoroethylene (C2F4)n were irradiated in the bremsstrahlung beam from a clinical linear electron accelerator at integral values of endpoint energy between 13 and 32 MeV. Sample positron activities... |
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Single-crystalline ceramic whisker-reinforced carboxylic acid-resin composites with fluoride release.
Oper. Dent. 25(2) , 90-7, (2000) Currently available glass-ionomer, resin-modified glass-ionomer, and compomer materials have relatively low strength and toughness and, therefore, are inadequate for use in large stress-bearing posterior restorations. In the present study, ceramic single-crys... |
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US drinking water: fluoridation knowledge level of water plant operators.
J. Public Health Dent. 61(2) , 92-8, (2001) We determined the knowledge level of water plant operators who fluoridate drinking water, and we compared small and large water plants.A pretested survey was sent to 2,381 water plant operators in 12 states that adjust the fluoride concentration of drinking w... |