1189-85-1 Usage
Chemical Properties
tert-Butyl chromate is a highly flammable,
clear, colorless, hygroscopic, corrosive, flammable liquid
or red crystals from petroleum ether. Solution in carbon tetrachloride is highly flammable.
Uses
In specialty reactions as a source of Cr;
manufacture of catalysts; polymerization of
olefins; curing agent for urethane resins
General Description
Liquid.
Air & Water Reactions
Highly flammable. Is hydrolyzed by water.
Reactivity Profile
Unstable except in solution.
Hazard
Toxic by skin absorption. A very powerful
oxidizer and dangerous fire hazard. Skin and lower
respiratory tract irritant.
Health Hazard
tert-Butyl chromate is expected
to cause irritation of the eyes, nose, and
skin.
Skin contact with tert-butyl chromate
caused necrosis of the skin and death of rats.1
In another report exposed rats had an increase
in respiratory rate and signs of mild narcosis.
Fire Hazard
Literature sources indicate that tert-Butyl chromate solution in carbon tetrachloride is flammable.
Safety Profile
A very flammable
mixture. When heated to decomposition it
emits acrid and irritating fumes. See
CHROMIUM COMPOUNDS and
ESTERS.
Potential Exposure
Butyl chromate is used in specialty reactions as an organic source of chromium; in
making catalysts; and as a curing agent for urethane
foams
Carcinogenicity
tert-Butyl chromate is considered to be an
inferred carcinogen because it is a hexavalent
chromium compound.
Shipping
UN3082 Environmentally hazardous substances,
liquid, n.o.s., Hazard class: 9; Labels: 9—Miscellaneous
hazardous material, Technical Name Required
Incompatibilities
tert-Butyl chromate is a strong oxidizer;
reacts violently with reducing agents (such as lithium,
sodium, aluminum and their hydrides and hydrazine); combustible materials. Water solutions of tert-butyl chromate
react violently with strong bases. Incompatible with strong
acids (i.e., hydrochloric, sulfuric and nitric); alcohols,
and easily oxidized materials, such as paper, wood, sulfur,
aluminum and plastics
Check Digit Verification of cas no
The CAS Registry Mumber 1189-85-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,8 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1189-85:
(6*1)+(5*1)+(4*8)+(3*9)+(2*8)+(1*5)=91
91 % 10 = 1
So 1189-85-1 is a valid CAS Registry Number.
InChI:InChI=1/2C4H9O.Cr.2O/c2*1-4(2,3)5;;;/h2*1-3H3;;;/q2*-1;+2;;/rC8H18CrO4/c1-7(2,3)12-9(10,11)13-8(4,5)6/h1-6H3
