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CHROMIUM TRIOXIDE flakes pure (chromic acid)

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CHROMIUM TRIOXIDE flakes pure (chromic acid)
Molecular structure
Chemical Product

CHROMIUM TRIOXIDE flakes pure (chromic acid)

Cat. NoKC.310202 CategoryAcids Molecular FormulaCrO3 CAS1333-82-0 Molecular Weight99.994 g/mol
Pack sizes 500GM1KG
Safety & Hazards (GHS) Danger
Oxidizing Oxidizing Corrosive Corrosive Acute toxic Acute toxic Irritant Irritant Health hazard Health hazard Environmental hazard Environmental hazard

⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).

Chromium trioxide is a chromium oxide composed of a single chromium bound (oxidation state +6) to three oxygens; the acidic anhydride of chromic acid.

  • Aluminum Producing [Category: Industry]
  • Electroplating [Category: Plate]
  • Petroleum Production and Refining [Category: Industry]
  • Semiconductor Manufacturing [Category: Industry]
Physical DescriptionChromium trioxide, anhydrous appears as a dark purplish red solid. Under prolonged exposure to fire or heat the containers may explode. Highly toxic. A confirmed human carcinogen.
Color/FormDark red, bipyramidal prismatic crystals, flakes or granular powder
OdorOdorless
Melting Point385 °F (NTP, 1992)
Boiling Point482 °F at 760 mmHg (decomposes) (NTP, 1992)
Density2.7 (NTP, 1992) - Denser than water; will sink
SolubilityVery soluble (NTP, 1992)
Vapor PressureVery low (NIOSH, 2024)
Stability/Shelf LifeStable under recommended storage conditions.
IUPAC Nametrioxochromium
Molecular FormulaCrO3
Molecular Weight99.994 g/mol
CAS1333-82-0
SMILESO=[Cr](=O)=O
InChIKeyWGLPBDUCMAPZCE-UHFFFAOYSA-N
Catalog NoKC.310202
Pack sizes500GM · 1KG
  • H271 May cause fire or explosion; strong Oxidizer
  • H301 Toxic if swallowed
  • H310 Fatal in contact with skin
  • H311 Toxic in contact with skin
  • H314 Causes severe skin burns and eye damage
  • H317 May cause an allergic skin reaction
  • H318 Causes serious eye damage
  • H330 Fatal if inhaled
  • H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
  • H340 May cause genetic defects
  • H350 May cause cancer
  • H361 Suspected of damaging fertility or the unborn child
  • H372 Causes damage to organs through prolonged or repeated exposure
  • H400 Very toxic to aquatic life
  • H410 Very toxic to aquatic life with long lasting effects

⚠️ For information only; not a substitute for the official SDS.

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