How H2SiF6 is formed?
During the reaction of phosphate ore and sulphuric acid, silicon tetrafluoride (SiF4) and HF are formed as byproducts. These gases are usually scrubbed with water, forming fluorosilicic acid, H2SiF6 (FSA) as a waste stream.
What is the name of H2SiF6?
Hexafluorosilicic acid
Hexafluorosilicic acid
| PubChem CID | 21863527 |
|---|---|
| Chemical Safety | Laboratory Chemical Safety Summary (LCSS) Datasheet |
| Molecular Formula | H2SiF6 or F6H2Si or H2F6Si |
| Synonyms | Hexafluorosilicic acid Fluorosilicic acid 16961-83-4 Dihydrogen hexafluorosilicate Silicate(2-), hexafluoro-, dihydrogen More… |
| Molecular Weight | 144.091 |
What is the PH of Hydrofluosilicic acid?
between 7.0 and 9.0
Deactivating Chemicals: Use calcium hydroxide (hydrated lime) to neutralize fluosilicic acid Page 7 Hydrofluosilicic Acid, 20 – 30 % Brenntag Canada Inc. WHMIS Number: 00060388 Date of Revision: 2006 January 12 Page 7 _______________________________________________________________________________________________ to a …
What is the concentration of fluoride in water?
Low concentrations provide protection against dental caries, both in children and in adults. The protective effects of fluoride increase with concentration up to about 2 mg of fluoride per litre of drinking-water; the minimum concentration of fluoride in drinking-water required to produce it is approximately 0.5 mg/l.
What is the concentration of H2SiF6 in water?
It is manufactured in modern rubber lined equipment producingan acid of high commercial purity. Commercial water solutions of the acid are available, having concentration of between 20% and 25% H2SiF6.
What to do if you have H2SiF6 ingestion?
INGESTION: give large amounts of water; do NOT induce vomiting. EYES: immediately wash with water for 15 min.; call a physician. SKIN: wash affected parts with water; treat as for hydrogen fluoride burn with iced benzalkonium chloride soaks.
When was the first episode of Gordon Ramsays boiling point filmed?
The series charts the first few months of Gordon Ramsay ‘s new restaurant. The first episode was filmed very soon after Ramsay resigned from one restaurant (and effectively shut it down), and the rest of the series picks up a couple of months later as his new venture opens. Written by garryq
What is the degree of hydrolysis of hexafluorosilicic acid?
At the pH of drinking water, the degree of hydrolysis is essentially 100%. Neutralization of solutions of hexafluorosilicic acid with alkali metal bases produces the corresponding alkali metal fluorosilicate salts: The resulting salt Na 2 SiF 6 is mainly used in water fluoridation.
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