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| CAS No.: | 13548-38-4 |
|---|---|
| Name: | Chromic nitrate |
| Molecular Structure: | |
|
|
|
| Formula: | Cr(NO3)3 |
| Molecular Weight: | 238.01 |
| Synonyms: | Chromiumnitrate (Cr(NO3)3) (6CI);Nitric acid, chromium(3+) salt (8CI,9CI);Chromicnitrate;Chromic trinitrate;Chromium trinitrate;Chromium(3+) nitrate;Chromium(3+) trinitrate;Chromium(III) nitrate;SP 8-4JL; |
| EINECS: | 236-921-1 |
| Density: | 1.00 g/mL at 20oC |
| Melting Point: | 60oC |
| Boiling Point: | > 100 °C (212 °F) (decomp.) |
| Solubility: | in water: 81 g/100 mL (20 °C) |
| Appearance: | blue-violet crystals |
| Hazard Symbols: |
 O, Xi
|
| Risk Codes: | 8-36/38 |
| Safety: | 17-26-36 |
| Transport Information: | UN 2720 5.1/PG 3 |
| PSA: | 0.00000 |
| LogP: | 0.00000 |
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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: TWA 0.5 mg(Cr)/m3
ACGIH TLV: TWA 0.5 mg(Cr)/m3; Not Classifiable as a Carcinogen
DOT Classification: 5.1; Label: Oxidizer
Specification
Chromic nitrate, with the CAS registry number 13548-38-4, has the IUPAC name Chromium(III) nitrate. It is a blue-violet crystals which is very soluble in water and soluble in acids, bases, alchol and acetone. This chemical is an inorganic compound with the formula Cr(NO3)3 that will decompose at 100 °C. This chemical is stable at room temperature, but may explode if heated. Chromic nitrate is incompatible with organic materials and reducing agents. Its EINECS registry number is 236-921-1. Aqueous solution is green when heated but turn to reddish violet when cooled down.
Preparation: Chromium trioxide is restored by cane sugar in the presence of hydrogen nitrate and then is filtered. The filtrate is evaporated and concentrated. Finally, you can gain the Chromic nitrate after cooling crystallization and centrifugal separation.
16 CrO3 + 48 HNO3 + 9 H2O + C12H22O11 → 16 Cr(NO3)3.9H2O + 35 H2O + [O] + CO2
Uses: Chromic nitrate is used in the production of alkali metal-free catalysts and in pickling. In addition, it is also used in manufacture of glass, for ceramic underglaze, corrosion inhibitor and mordant in printing.
When you are using Chromic nitrate, you should be veru cautious about it. The substance is oxidising and irritant. When you contact with combustible material may cause fire. It is irritating to eyes and skin. In addition, you should keep it away from combustible material. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, you need wear suitable protective clothing.
Descriptors computed from structure of Chromic nitrate:
(1)Canonical SMILES: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Cr+3]
(2)InChI: InChI=1S/Cr.3NO3/c;3*2-1(3)4/q+3;3*-1
(3)InChIKey: PHFQLYPOURZARY-UHFFFAOYSA-N
Toxicity of Chromic nitrate:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 110mg/kg (110mg/kg) | Sangyo Igaku. Japanese Journal of Industrial Health. Vol. 20, Pg. 590, 1978. | |
| mouse | LD50 | oral | 2976mg/kg (2976mg/kg) | Sangyo Igaku. Japanese Journal of Industrial Health. Vol. 20, Pg. 590, 1978. | |
| mouse | LD50 | subcutaneous | 3232mg/kg (3232mg/kg) | Sangyo Igaku. Japanese Journal of Industrial Health. Vol. 20, Pg. 590, 1978. | |
| rat | LD50 | oral | 3250mg/kg (3250mg/kg) | Gekkan Yakuji. Pharmaceuticals Monthly. Vol. 22, Pg. 291, 1980. |