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chromium trioxide

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Origin: China

Cas No: 1333-82-0

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

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CAS No.: 1333-82-0 Formula: CrO3 Molecular Weight: 99.99430

Description

Chromium trioxide is an inorganic compound with the formula CrO3. It 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. Millions of kilograms are produced annually, mainly for electroplating. Chromium trioxide is a powerful oxidiser and a suspected carcinogen.

Basic Info

Chemical Name	chromium trioxide
Synonyms	Chromium Trioxide; CROMIUM TRIOXIDE; Chromium(VI) oxide; Chromic anhydride; Chromium Oxide; Chrormic trioxide; Chromium (VI) Oxide;
CAS No.	1333-82-0
Molecular Formula	CrO3
Molecular Weight	99.99430
PSA	51.21000
LogP	-0.35640

Properties

Appearance & Physical State	dark red crystals or powder
Density	2.7g/cm3
Boiling Point	330ºC
Melting Point	196ºC
Freezing Point	170~172℃
Flash Point	250ºC
Water Solubility	Highly soluble
Stability	Stable. Strong oxidizer. Reacts with most organic material in a violent and often explosive fashion. Moisture sensitive.
Storage Condition	Do not store near combustible materials. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.

Safety Info

RTECS	GB6650000
Hazard Class	5.1
Safety Statements	S45-S53-S60-S61
HS Code	2819100000
WGK Germany	3
Packing Group	II
RIDADR	UN 1463
Risk Statements	R24/25; R26; R35; R42/43; R45; R46; R48/23; R50/53; R62; R9
Hazard Codes	O; T+; N
Caution Statement	P201; P210; P260; P280; P284; P301 + P310 + P330; P303 + P361 + P353; P304 + P340 + P310; P305 + P351 + P338; P308 + P313; P371 + P380 + P375; P403 + P233
Hazard Declaration	H271; H301 + H311; H314; H317; H330; H334; H340; H350; H361f; H372; H410
Signal Word	Danger
Symbol	GHS03, GHS05, GHS06, GHS08, GHS09

Synthesis Route

chromium atom+oxygen→chromium trioxide

Precursor

oxygen
chromium atom

Downstream Product

2-Bromopyridine-4-carboxylic acid
Isopropyl 2-methoxyethyl 2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyrid inedicarboxylate
tert-Butyl 2-oxopyrrolidine-1-carboxylate
N-(1-oxo-6-phenoxy-2,3-dihydroinden-5-yl)methanesulfonamide

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