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| CAS No.: | 1308-14-1 |
|---|---|
| Name: | Chromichydroxide |
| Molecular Structure: | |
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| Formula: | H6CrO3 |
| Molecular Weight: | 102.95 |
| Synonyms: | Chromichydroxide;12134-12-2;chromium(3+) trihydroxide;Chromium(VI) hydroxide;CHROMIC HYDROXIDE [MI];AKOS025310801;FT-0623787;J-005883;CHROMIUM (III) HYDROXIDE N-HYDRATE |
| EINECS: | 215-158-8 |
| Density: | 1.36[at 20℃] |
| Boiling Point: | 100 °C at 760 mmHg |
| Solubility: | insoluble H2O; soluble dilute mineral acids when freshly prepared [MER06] |
| PSA: | 60.69000 |
| LogP: | -0.53040 |
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Consensus Reports
IARC Cancer Review: Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 49 , 1990,p. 49.(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 . 49 , 1990,p. 49.(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 . 49 , 1990,p. 49.(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.
Standards and Recommendations
OSHA PEL: CL 0.1 mg(CrO3)/m3
ACGIH TLV: TWA 0.05 mg(Cr)/m3; Confirmed Human Carcinogen
NIOSH REL: (Chromium(VI)) TWA 0.001 mg(Cr)/m3
Analytical Methods
For occupational chemical analysis use NIOSH: Chromium Hexavalent 7024.
Specification
The Chromium trihydrate, with the CAS registry number 1308-14-1, is also known as Chromic oxide gel. It belongs to the product category of Inorganics. Its EINECS registry number is 215-158-8. This chemical's molecular formula is H3CrO3 and molecular weight is 103.0181. Its systematic name is called chromium(3+) trihydroxide. What's more, this chemical's classification code is Tumor data. This chemical should be kept in a dry, well-ventilated place away from foodmaterial.
Physical properties of Chromium trihydrate: (1)ACD/LogP: -1.38; (2)ACD/LogD (pH 5.5): -1.38; (3)ACD/LogD (pH 7.4): -1.38; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)#H bond acceptors: 1; (7)#H bond donors: 2; (8)Enthalpy of Vaporization: 40.65 kJ/mol; (9)Boiling Point: 100 °C at 760 mmHg; (10)Vapour Pressure: 24.5 mmHg at 25°C.
Preparation of Chromium trihydrate: this chemical can be prepared by reduction of formaldehyde. This reaction will need sodium dichromate and sulfuric acid with formaldehyde as reducing agent. Reaction equation is as follows:
2Na2Cr2O7+3HCOH+2H2SO4+H2O→Cr(OH)3+3CO2+2Na2SO4
Uses of Chromium trihydrate: This chemical can be used for producing chromium salt, chromium chromium oxide and chemical reagents. In addition, it also can be used as pigments of paint and used in processing of wool.
You can still convert the following datas into molecular structure:
(1)SMILES: [Cr+3].[OH-].[OH-].[OH-]
(2)InChI: InChI=1/Cr.3H2O/h;3*1H2/q+3;;;/p-3
(3)InChIKey: VQWFNAGFNGABOH-DFZHHIFOAK
The toxicity data is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| women | TDLo | oral | 100mg/kg (100mg/kg) | GASTROINTESTINAL: NAUSEA OR VOMITING BLOOD: NORMOCYTIC ANEMIA | Nephron. Vol. 22, Pg. 592, 1978. |