CAS No.:7440-47-3

TOXICITY DATA with REFERENCE：

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
rat	LD50	unreported	27500ug/kg (27.5mg/kg)		Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 37(10), Pg. 27, 1972.

Consensus Reports：

 Chromium and its compounds are on the Community Right-To-Know List. Chromium is reported in EPA TSCA Inventory.

SAFETY PROFILE：

Powder will explode spontaneously in air. Ignites and is potentially explosive in atmospheres of carbon dioxide. Violent or explosive reaction when heated with ammonium nitrate. May ignite or react violently with bromine pentafluoride. Incandescent reaction with nitrogen oxide or sulfur dioxide. Incompatible with oxidants.
Hazard Codes: F,C,Xn
Risk Statements: 11-20/21/22-34-40-23 
R11:Highly flammable. 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed. 
R34:Causes burns. 
R40:Limited evidence of a carcinogenic effect. 
R23 :Toxic by inhalation.
Safety Statements: 16-26-36/37/39-45-36/37-27 
S16:Keep away from sources of ignition. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S36/37:Wear suitable protective clothing and gloves. 
S27:Take off immediately all contaminated clothing.
RIDADR: UN 2924 3/PG 2
WGK Germany: 3
RTECS: GB4200000
HazardClass: 4.1
PackingGroup: III

Standards and Recommendations：

OSHA PEL: TWA 1 mg/m³
ACGIH TLV: TWA 0.5 (Cr)mg/m³; Not Classifiable as a Carcinogen

Analytical Methods：

For occupational chemical analysis use OSHA: #ID-125G or NIOSH: Chromium, 7024; Welding and Brazing Fume, 7200; Elements, 7300.