Potassium dichromate

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Potassium dichromate

 

Dichromate potassium (potassium dichromate, potassium bichromate, technical. the bichromate) — K2Cr2O7. Sometimes the bichromate is also called sodium dichromate (Na2Cr2O7 • 2H2O).

Well soluble in water. In acidic medium exhibits a strong oxidative properties recovering to salts of chromium (III). For example, it oxidizes halide ions halogenorganic acid to the free halogen. Crystalline potassium dichromate also possesses oxidizing properties. For example, sulfur and carbon restore it to chromium oxide (III).

Get effect of potassium chloride on sodium dichromate.

Highly toxic, carcinogenic spray solution destroys the skin, respiratory tract and cartilaginous tissue. ПДК0,01 mg/m3 (calculated as CrO3). When working with dichromate potassium is necessary to use respiratory protection and skin.

This the substance is used in various industries for different purposes:

– tanning leather and lambskin leather processing (acts as a tanning agent);

– the manufacture of match products, pyro - and graphic arts products, and painting (acts as an oxidant);

– create dyes and pigments inorganic origin;

– Metalworking for inhibiting corrosion of metal surfaces;

– getting dry batteries;

– processing seeds;

– chromatomyia (is a reactant).

Together with concentrated sulfuric acid potassium bichromate is actively used for glass washing chemicals.

Water a solution of potassium dichromate impregnated wood products exposed moisture and pests. The result of this treatment, beams and other products are protected by the chromium oxide formed from decay and insect pests.

Available the price of potassium dichromate allowed him to find application in a number of areas industry. In the manufacture of dyes it is necessary for them to be resistance to soap and alkaline solutions in the dyeing of wool and cotton. As the oxidant used in chemical laboratories, match industry, painting, photography and pyrotechnics. In the Bicycle and the auto industry as a dichromate potassium etched surface before application of paints and enamels.

Water potassium dichromate used for impregnation of wooden structures exposed to moisture and pests. The processing of beams and similar products, formed by chromium oxide, which reliably protects them from rotting and insects.

The need to buy potassium dichromate have laboratories that use it the solution in sulphuric acid for washing glassware. In addition, it is found use in organic synthesis and the manufacture of dry batteries.

Potassium the technical dichromate is Packed in steel drums, plastic bags-liners, nested in four-five-layer paper bags or flax goto-kanatnyi bags weighing no more than 50 lbs. allowed packaging potassium the technical bichromate in special soft containers of single - use mass not exceeding 1000 kg.

Potassium the dichromate technical transporterowych all types of transport (except air) in covered vehicles in accordance with the rules of transportation, valid on every mode of transport.

Potassium dichromate is stored in closed warehouses in the manufacturer's packaging.

Product Packed in special soft containers of single use, keep on uncontaminated open areas with hard surface runoff waters and ensure the work truck mechanisms. The shelf life of potassium dichromate not limited.

 

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