详情
Chemical Formula: K2Cr2O7, molecular weight **4.*8.
Orange-red triclinic crystal. Non-hygroscopic, soluble in
water, but insoluble in alcohol.
Strong oxidation. Flammable in friction or collision with
organic compounds. Poisonous.
Application
Mainly used in the manufacture of chromic oxide, potassium
chromate, chromate yellow pigments, welding electrode, match,
chromic potassium alum and chemical reagent.
Also used in steel passivating and used as oxidizing
agent.
Packaging
In reinforced-type composite plastic woven bags, net weight
for each: *5kg, or *0kg.
Notice
1. Avoid moisture, heat and shock during storage and
transportation. Keep away from combustibles.
2. Do not store with foodstuff or strong reducers.
3. Avoid contacting with eyes and skin.
4. Personal protective appliance should be equipped with, such
as self-suction respirator, acid-proofing rubber gloves, security
coat and boot, chemical-resistant protective glasses.
5. In case of leakage, reduce with *0% sulfuric acid and
ferrous sulfate, and neutralize with calcium oxide
immediately
[quality standard]:HG/T***********5
item
first-slass
products
K2Cr2O7
*9.7%min
Chloride(CL-) 0.*5%max
Sulfate(SO4) 0.*2%max
Moisture
0.*3% max
Na+
0.5% max
