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112945-52-5

Basic Information
CAS No.: 112945-52-5
Name: Silicondioxide
Molecular Structure:
Molecular Structure of 112945-52-5 (Silicondioxide)
Formula: SiO2
Molecular Weight: 60.09
Synonyms: Silica, amorphous,fumed, cryst.-free;Amorphous silica: Pyrogenic (fumed);Fumed silica, crystalline-free;Fumed synthetic amorphous silica;Aquafil;
EINECS: 238-878-4
Density: 2.3lb/cu.ftat 25°C (bulk density)(lit.)
Melting Point: >1600 °C
Boiling Point: 2230oC
Flash Point: N/A
Solubility: insoluble
Appearance: White powder
Hazard Symbols: R37:Irritating to respiratory system.;
Risk Codes: R37
Safety: 24/25
Transport Information: N/A
PSA: 34.14000
LogP: -0.61840
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Consensus Reports

IARC Cancer Review: Group 3 IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 ,1987,p. 341.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Inadequate Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 42 ,1988,p. 209.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human Inadequate Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 42 ,1988,p. 209.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Reported in EPA TSCA Inventory.

Analytical Methods

For occupational chemical analysis use OSHA: #ID-125 g or NIOSH: 1994: Silica, Amorphous, 7501.

Specification

The Silicondioxide, with the CAS registry number 112945-52-5, is also known as Cab-O-grip II . It belongs to the product category of UVCBs-inorganic. Its IUPAC name is called dioxosilane. This chemical's classification codes are Insecticide; Mutation data; Tumor data. This chemical should be closed in a cool dry environment.

Physical properties of Silicondioxide: (1)#H bond acceptors: 2; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 34.14 Å2; (5)Melting Point: >1600 °C; (6)Density: 2.3 lb/cu.ft at 25 °C (bulk density)(lit.); (7)Refractive Index: n20/D 1.46(lit.); (8)Form: Powder.

Uses of Silicondioxide: it can be used to manufacture glass ceramics, abrasives, oil decolorization, purification ferrosilicon, and analysis the determination of boron, arsenic and silver. It also can be used for TLC system boards.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: O=[Si]=O
(2)InChI: InChI=1S/O2Si/c1-3-2
(3)InChIKey: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD50 intravenous 15mg/kg (15mg/kg) LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA Bolletino della Societe Italiana di Biologia Sperimentale. Vol. 44, Pg. 1685, 1968.
rat LD50 oral 3160mg/kg (3160mg/kg)   Agricultural Research Service, USDA Information Memorandum. Vol. 20, Pg. 9, 1966.
rat LDLo intraperitoneal 50mg/kg (50mg/kg)   Archiv fuer Hygiene und Bakteriologie. Vol. 136, Pg. 1, 1952.
rat LDLo intratracheal 10mg/kg (10mg/kg)   Archiv fuer Hygiene und Bakteriologie. Vol. 136, Pg. 1, 1952.