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LC1374 Chromium(VI) oxide

extra pure


Order number Packaging Quantity Price €
AC28374 Glass bottle 2.5 kg 212.4


Product information
Synonyms Chromic anhydride, Chromium trioxide
Hill Formula CrO3
HS Code 2819 10 00
EC number 215-607-8
Molar mass 99.99 g/mol
EC index number 024-001-00-0
CAS number 1333-82-0


Chemical and physical data
Solubility 1854 g/l (20 °C)
Melting point 197 °C
Molar mass 99.99 g/mol
Density 2.7 g/cm3 (20 °C)
Bulk density 900 kg/m3
pH value < - 1 (100 g/l, H2O, 20 °C)


Safety information according to GHS
Hazard Statement(s) H350: May cause cancer.
H340: May cause genetic defects.
H271: May cause fire or explosion; strong oxidiser.
H330: Fatal if inhaled.
H301: Toxic if swallowed.
H311: Toxic in contact with skin.
H314: Causes severe skin burns and eye damage.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H317: May cause an allergic skin reaction.
H335: May cause respiratory irritation.
H370: Causes damage to organs.
H361f: Suspected of damaging fertility.
H410: Very toxic to aquatic life with long lasting effects.
Precautionary Statement(s) P201: Obtain special instructions before use.
P273: Avoid release to the environment.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P301 + P330 + P331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word Danger
Hazard Pictogram(s)

RTECS GB6650000
Storage class 5.1 B Oxidizing agents (TRG 515 Group 2+3)
WGK WGK 3 highly water endangering
Disposal 22
Inorganic peroxides and oxidants as well as bromine and iodine should be rendered harmless by reduction with acidic sodium thiosulfate solution (Cat. No. 106513); container D or E. Slightly soluble oxidants should be collected separately in container E or I.


Safety information
R Phrase R 45-46- 9-24/25-26-35-42/43-48/23-50/53-62
May cause cancer.May cause heritable genetic damage.Explosive when mixed with combustible material.Also toxic in contact with skin and if swallowed.Also very toxic by inhalation.Causes severe burns.May cause sensitization by inhalation and skin contact.Also toxic: danger of serious damage to health by prolonged exposure through inhalation.Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.Possible risk of impaired fertility.
S Phrase S 53-45-60-61
Avoid exposure – obtain special instructions before use.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).This material and its container must be disposed of as hazardous waste.Avoid release to the environment. Refer to special instructions/ Safety data sheets.
Categories of danger carcinogenic, mutagenic, oxidizing, very toxic, corrosive, sensitizing, dangerous for the environment, toxic for reproduction
Hazard Symbol

Very toxic

Dangerous for the environment


Transport information
Declaration (transport by sea) IMDG-Code UN 1463 CHROMIUM TRIOXIDE, ANHYDROUS, 5.1 (6.1, 8), II
Declaration (transport by air) IATA-DGR UN 1463 CHROMIUM TRIOXIDE, ANHYDROUS, 5.1 (6.1, 8), II


Toxicological data
LD 50 oral LD50 rat 50 mg/kg
LD 50 dermal LD50 rat 55 mg/kg


Assay (iodometric) ≥ 99.0 %
Identity passes test
Alcali chromates passes test
Chromium(III)oxide passes test
Sulphate (SO4) ≤ 0.05 %
Loss on drying (105 °C) ≤ 1.0 %