Copper Chromite TAN YUN

Copper Chromite
 Executive standard: GJB 2302-95
English another name: Chromium copper oxide   
 CAS RN: 12018-10-9
 UN RN: 3143.
 1. Physical and chemical properties:
1.1 Molecular formula: Cr2Cu2O5
1.2 Molecular Weight: 311.08
1.3 Structure formula: 

1.4 Solubility: 0.5% in water
1.5 pH valve: 5-7
1.6 Stability and reactivity: Stable at room temperature and in the sealed container.
 2. Technical indexes:
Item Index
 Total Cr +6 content(in Kr2Cr207),%(m/m) 19.5±1.0
 Total Cu content(in CuO),%(m/m) 46.0±2.0
 Moisture,%(m/m) ≤0.5
Weightlessness in burning (650℃),%(m/m) ≤4.0
 Pass rate(by standard sieve of 120-mesh),% 100
 Appearance Brown black powder
 3. Uses: The product has been used as a combustion catalyst of AP-based oxidizer in composite solid propellants.
 4. Safety instructions: Toxic. Operation must be installed with rubber gloves and anti-dust mask to avoid contacting skin and breathing dust.
 4. Package: Fibreboard drums (Ф350×520) with aluminum-lining foil bag, 20 kg net each.
 5. Storage: Sealed preservation. Store at cool and ventilate. Shelf life of 12 months, if expire, still used if up to standard through retest.
 7. Transportation: Avoid sunlight and rain.