Archives Green - Novohim Online store of chemical raw materials and materials Wed, 27 May 2026 09:48:04 +0000 en-GB hourly 1 https://wordpress.org/?v=7.0 https://novohim.com.ua/wp-content/uploads/2024/06/favicon@72x-100x100.png Archives Green - Novohim 32 32 247251005 Chromium (III) oxide / green pigment https://novohim.com.ua/en/catalog/industrial-chemicals-and-raw-materials/chromium-iii-oxide-green-pigment/ https://novohim.com.ua/en/catalog/industrial-chemicals-and-raw-materials/chromium-iii-oxide-green-pigment/#respond Thu, 06 Sep 2018 08:03:11 +0000 https://novohim.com.ua/?post_type=product&p=40332 Chromium (III) oxide appearance:

Chromium oxide appears as a powdery green solid. In industry, there are several ways to produce green pigment: decomposition of ammonium or potassium bichromate at high temperatures, and decomposition of chromium hydroxide or oxide at temperatures up to 1000 °C.

Description of characteristics:

  • Chromium oxide III is an inorganic compound, a salt-forming oxide
  • Soluble in sulphur dioxide solution. Very poorly soluble in water, alkalis and acid solutions.
  • Very hard and refractory material. Its melting point exceeds 2400C. In terms of hardness, trivalent chromium oxide is comparable to such minerals as corundum
  • In reactions with alkalis in the presence of an oxidising agent, chromium oxide is oxidised to chromic acid salts. It can be reduced with strong reducing agents.
  • It can react with aggressive acids, forming trivalent chromium salts
  • Depending on the method of production and application, chromium oxide III is available as metallurgical (OHM), abrasive (OHA) and pigment (OHP).Packaging, transportation and storage:Chromium oxide III is packaged at the manufacturing plant in paper or polypropylene bags with a liner weighing 25 kg. Chromium III oxide is transported by rail in covered wagons or by road in covered vehicles. The green pigment is stored in the manufacturer's packaging in covered warehouses, protected from humidity and direct sunlight.You can order Chromium III oxide in Kharkiv at wholesale prices from Novohim in standard packaging of 25 kg or in individual packaging of 5 kg or more.

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]]> Use of chromium oxide III (green pigment):

Chemical industry

You can buy chromium oxide in the Novohim online chemicals store.

Chromium oxide is widely used as a component for the manufacture of solid rocket fuel. It is also a catalyst for the synthesis of chemical elements, such as ammonia.

Chromium oxide in the ceramic and glass industries

Pigmented chromium oxide is also widely used as a green pigment in the production of coloured ceramics and glassware.

Construction

The green pigment chromium oxide is used as a pigment in the manufacture of coloured concrete, eurofences, and paving slabs. It is also added to dry building mixes, primers, and wall plaster.

Chromium oxide in metallurgical production

Due to its hardness and stability, trivalent chromium oxide is widely used to produce reliable abrasives and refractories.

Paint and varnish industry

It is used as a green pigment and for its lightfast properties in the manufacture of paints and enamels, as well as printing inks.

Physical and chemical characteristics

Chemical formula Cr2O3
Appearance Green colour powder
Melting point, ° close to 4000
Boiling point, °C 2435
Density, g/cm3 5,21

 

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More concrete pigments can be found at this link

 

You can buy chromium oxide from Novohim’s warehouse in Kharkiv or with delivery to Kyiv, Poltava, Sumy, Zaporizhzhia, Kherson, Vinnytsia and throughout Ukraine.

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