09
Aug
Stability and Reactivity Data. Dark-red odorless flakes or powder.
Soluble in concentrated hydrogen fluoride and ammonium salts.
Chromium trioxide hazards. Chromium trioxide also known as chromiumVI oxide or chromic anhydride is an inorganic compound with the formula CrO 3It is the acidic anhydride of chromic acid and is sometimes marketed under the same name. This compound is a dark-purple solid under anhydrous conditions bright orange when wet and which dissolves in water concomitant with hydrolysis. Chromium trioxide is a chromium oxide composed of a single chromium bound oxidation state 6 to three oxygens.
The acidic anhydride of chromic acid. ChEBI Chromium trioxide anhydrous appears as a dark purplish red solid. Cr 2 O 3 has the corundum structure consisting of a hexagonal close packed array of oxide anions with 2 3 of the octahedral holes occupied by chromium.
Similar to corundum Cr 2 O 3 is a hard brittle material Mohs hardness 8 to 85. It is antiferromagnetic up to 307 K the Néel temperature. It is not readily attacked by acids.
The intestinal absorption of trivalent and hexavalent chromium Cr given orally experiment I or infused in the intestine experiment II was investigated in rats. The nonabsorbable form of chromium 51Cr2O3 and water-soluble and more absorbable Na251CrO4 the hexavalent form of Cr were comparedTotal retention of chromium given orally ranged around 15 percent of the dose regardless. 1333-82-0 CrO 3 GB6650000 CrO 3 ChromiumII compounds as Cr ChromiumIII compounds as Cr ChromiumVI oxide 13 1333-82-0 CrO 3 GB6650000 CrO 3 Chromyl chloride 14977-61-8.
Cinerin I or II. Chromic acid CrO 3 Chromic anhydride Chromic oxide ChromiumVI oxide 13 Chromium trioxide Zinc chromate CrO 3. Dark-red odorless flakes or powder.
Calcium chromate chromium trioxide lead chromate strontium chromate and zinc chromate are known human carcinogens. An increase in the incidence of lung cancer has been observed among workers in industries that produce chromate and manufacture pigments containing chromate. Occupational exposure to lead is one of the most prevalent overexposures.
The CLP Regulation ensures that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union through classification and labelling of chemicals. Classification of substances and mixtures. Labelling and packaging.
Harmonised classification and labelling CLH Alternative chemical name in. The ZDHC Manufacturing Restricted Substances List ZDHC MRSL is a list of chemical substances. These substances are banned from intentional use in facilities processing textile materials leather rubber foam adhesives and trim parts in textiles apparel and footwear.
Explosion Hazards in Presence of Various Substances. Very slightly soluble in hot water. Insoluble in cold water.
Insoluble in chromium trioxides and mineral acids alkalies. Slightly soluble with decomposition in hot water. Soluble in concentrated hydrogen fluoride and ammonium salts.
Stability and Reactivity Data. The product is stable. Chromium trioxide 215-607-8 1333-82-0 12012022 NEWFORM SPA.
Electroplating of different types of substrates using Chromium Trioxide to achieve functional surfaces with high durability and a bright or matt silvery appearance for sanitary applications Details.