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7789-00-6 - Potassium chromate, ACS, 99.0% min - Potassium chromium(VI) oxide - 12610 - Alfa Aesar

12610 Potassium chromate, ACS, 99.0% min

Codice CAS
7789-00-6
Sinonimi
Potassium chromium(VI) oxide

Dimensioni Prezzo ($) Quantità Disponibilità
100g 33,35
500g 110,82
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Potassium chromate, ACS, 99.0% min

MDL
MFCD00011368
EINECS
232-140-5

Proprietà chimiche

Formula
K2CrO4
Peso formula
194.19
Modulo
Crystalline
Punto di fusione
975°
Densità
2.73
Solubilità
Soluble in water. Insoluble in alcohol.

Applicazioni

In finishing of leather, rust proofing of metals, textile mordant, as an analytical lab reagent. Potassium chromate enjoys a broad assortment of industrial purposes. In the fabric industry, manufacturers use potassium chromate to tan leather and dye clothing items and materials. In science, potassium chromate is often used as an indicator, meaning it can identify the presence, location and quantity of certain elements such as iron. Beyond these applications, potassium chromate also functions as an oxidizing agent in manufacturing and scientific experiments. Some nuclear power plants currently use substances other than potassium chromate to inhibit corrosion in closed cooling-water systems. Potassium chromate is applied as a chemical indicator of chlorine ions.

Note

Potassium chromate can be destroyed by reaction with reducing agents.

Letteratura

Hu, G. R.; Wang, J. L.; Peng, Z. D.; Du, K.; Wang, W. G.; Jiang, Q. L. Preparation of potassium chromate by roasting of carbon ferrochrome. Trans. Nonferrous Met. Soc. China 2015, 25, 966-972.

Guo-rong, H.; Jia-liang, W.; Zhong-dong, Peng.; Ke, D. A novel method to produce potassium chromate from carbon ferrochrome. J. Cent. South Univ. 2015, 22 (4), 1264-1268.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H340-H350-H400-H410-H315-H319-H317-H335

May cause genetic defects. May cause cancer. Very toxic to aquatic life. Very toxic to aquatic life with long lasting effects. Causes skin irritation. Causes serious eye irritation. May cause an allergic skin reaction. May cause respiratory irritation.

Dichiarazioni precauzionali: P201-P261-P273-P280-P281-P305+P351+P338-P304+P340-P362-P405-P501a

Obtain special instructions before use. Avoid breathing dust/fume/gas/mist/vapours/spray. Avoid release to the environment. Wear protective gloves/protective clothing/eye protection/face protection. Use personal protective equipment as required. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,7622
Classe di rischio
5.1
Gruppo di imballaggio
III
Codice tariffe armonizzato
2841.50
TSCA
Yes
RTECS
GB2940000

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