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1333-82-0 - Chromium(VI) oxide, 99% - 12522 - Alfa Aesar

12522 Chromium(VI) oxide, 99%

Numéro de CAS
1333-82-0
Synonymes

Conditionnement Prix ($) Quantité Disponibilité
250g 26,10
1kg 51,90
*5x1kg 182,00
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Chromium(VI) oxide, 99%

MDL
MFCD00010952
EINECS
215-607-8

Propriétés chimiques

Formule
CrO3
Poids moleculaire
99.99
Forme
Crystalline
Point de fusion
196°
Point d'ébullition
250° dec.
Densité
2.7
Sensibilité
Hygroscopic
Solubilité
Very soluble in water. Soluble in sulfuric, nitric acid, acetic acid, and acetone.

Applications

It is widely used in chromium electroplating, and as protective coatings in corrosion/oxidation resistance of metals. It is also employed in CDs and DVDs. It is useful as an oxidant in Jones oxidation in acetic acid or acetone. It is used in the oxidation of primary alcohols into carboxylic acids, and secondary alcohols into ketones. With phosphoric acid, it is used as a stripping agent for anodic coatings of all types and in the production of syntheric rubies.

Notes

It is a non-flammable stable compound. When heated above 197 °C, it liberates oxygen, producing chromium(III) oxide.

Références bibliographiques

Calabrese, D. R.; Wenning, B.; Finlay, J. A.; Callow, M. E.; Callow, J. A.; Fischer, D.; Ober, K. C. Amphiphilic oligopeptides grafted to PDMS-based diblock copolymers for use in antifouling and fouling release coatings. Polym. Advan. Technol. 2015, 26 (7), 829-836.

Wang, C.; Hu, H.; Xu, J.; Kan, W. One-pot synthesis of indolizine via 1,3-dipolar cycloaddition using a sub-equivalent amount of K2Cr2O7 as an efficient oxidant under base free conditions. RSC Adv. 2015, 5, 41255-41258.

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H271-H301-H310-H330-H314-H318-H334-H317-H340-H350-H361-H372

May cause fire or explosion; strong oxidizer. Toxic if swallowed. Fatal in contact with skin. Fatal if inhaled. Causes severe skin burns and eye damage. Causes serious eye damage. May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause an allergic skin reaction. May cause genetic defects. May cause cancer. Suspected of damaging fertility or the unborn child. Causes damage to organs through prolonged or repeated exposure.

Mentions de prudence: P221-P283-P301+P310a-P303+P361+P353-P304+P340-P305+P351+P338-P320-P405-P501a

Take any precaution to avoid mixing with combustibles. Wear fire/flame resistant/retardant clothing. IF SWALLOWED: Immediately call a POISON CENTER/doctor IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Specific treatment is urgent (see label). Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Merck
14,2235
Classe de danger
5.1
Groupe d'emballage
II
Code tarifaire harmonisé
2819.10
TSCA
Yes
RTECS
GB6650000

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