Tetrahydroxysilan
Orthosilicic acid
Grundinformationen
- CAS
10193-36-9- Standard-SMILES
O[Si](O)(O)O- InChIKey
RMAQACBXLXPBSY-UHFFFAOYSA-N- Summenformel
- H4O4Si
- Durchschnittliche Molmasse
- 96,11 g/mol
- Monoisotopische Masse
- 95,98788514
Überblick
Silicic acid is a silicon oxoacid. It is a conjugate acid of a trihydrogensilicate(1-).
Namen und Bezeichner
- Bevorzugter Name
- Orthosilicic acid
- IUPAC
- silicic acid
- Lokaler Name
- Tetrahydroxysilan
- Englischer Name
- tetrahydroxysilane
- Summenformel
- H4O4Si
- Molmasse
- 96.11
Namen und Synonyme
Orthosilicic acidMonosilicic acidSilicon tetrahydroxideSilicasolTetrahydroxysiliconsilanetetrolKieselsaeureSilicic acid (Si(OH)4)Silicic acid (ortho)OrthokieselsaeureEINECS 233-477-0UNII-623B93YABH
Weitere Namen anzeigen
silicicacisiliclc acidMONOSILICICACIDtetrahydroxysilane
tetrahydroxidosilicon623B93YABHH4SiO4Silicon hydroxide (Si(OH)4)CHEBI:26675ORTHOSILICIC ACID (H4SIO4)(Si(OH)4)[Si(OH)4]
Datenbank-Bezeichner
- CAS
10193-36-9、1343-98-2- PubChem CID
- 14942
- DTXSID
DTXSID5058721- ChEBI
CHEBI:26675- UNII
- 623B93YABH
- EC Number
- 215-683-2、233-477-0
- Nikkaji
- J148.210F
Eigenschaften
Berechnete Struktureigenschaften
- Polarare Oberfläche (TPSA)
- 80,9 Ų
- H-Brücken-Donoren
- 4
- H-Brücken-Akzeptoren
- 4
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 5
- Formalladung
- 0
- Komplexität
- 19,1
Experimentelle und physikochemische Eigenschaften
Chemical ClassesMineral Dusts -> Other Mineral Dusts
CosmeticsBulking; Opacifying; Anticaking; Viscosity controlling; Abrasive; Absorbent
Density2.2 @25 °C
Melting Point1610 °C
Vapor Pressure10 [mm Hg] @1732 °C
Food Contact SubstancesFCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR
Physical Description
Dry Powder
White solid; [Merck Index] Powder; [Sigma-Aldrich MSDS]
Physikochemische Eigenschaften
- Siedepunkt
- 153 · 153-156 °C(Press: 2 Torr)
- Dichte
- 2.63 g/cm3 · 2.63 g/cm3
- Dampfdruck
- 1.333 hPa · 1.333hPa at 25℃
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
This chemical does not meet GHS hazard criteria for 100% (168 of 168) of all reports.
Not Classified
Aggregated GHS information provided per 168 reports by companies from 1 notifications to the ECHA C&L Inventory.
This chemical does not meet GHS hazard criteria for 0.7% (1 of 135) of reports.
Danger
H314 (99.3%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
Gefahrenhinweise
Regulatory Information
Chemical: Silicic acid (H4SiO4)
Chemical: Silicic acid
Silicic acid is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silicic acid are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
REACH registered substance: Tetrahydroxysilane (EC: 233-477-0)
Silicic acid (H4SiO4): Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Silicic acid: Does not have an individual approval but may be used under an appropriate group standard
Hazards SummaryCauses lung changes including focal fibrosis in intermittent inhalation studies of rats; [RTECS] A skin and strong eye irritant; Targets the lungs; [Sigma-Aldrich MSDS]
Hazard Classes and Categories
Skin Corr. 1 (99.3%)
Not Classified
Sicherheit und Schutzausrüstung
Chemie und Industrie
Verwendung und Herstellung
Uses
Opal is the natural form; Used as a sorbent for column chromatography; Approximate molecular formula of H2-Si-O3; [Merck Index] A hydrated form of silicon dioxide. It is commonly used in the manufacture of TOOTHPASTES and as a stationary phase for CHROMATOGRAPHY. [ChemIDplus] Gel forms are used to absorb vapors and as insecticide carriers; [REPROTOX] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]
U.S. Production2023: 50,000 - <250,000 lb
Industry UsesSolvent
Household ProductsInformation on 9 consumer products that contain Silicic acid in the following categories is provided:
Use ClassificationCosmetics -> Bulking; Opacifying; Anticaking; Viscosity controlling; Abrasive; Absorbent
General Manufacturing Information
Paint and Coating Manufacturing
Silicic acid: ACTIVE
Silicic acid (H4SiO4): ACTIVE
Vor- und nachgelagerte Produkte
Vorgelagerte Rohstoffe
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