Catalytic antimony trioxide used as polyester catalytic in the synthetic fiber industry, catalytic agent in organic synthesis.
Specification:
Item | Sb2O399.80 | Sb2O399.85 | Sb2O399.9 | |||
Chemical composition | Sb2O3%(min) | 99.80 | 99.85 | 99.90 | ||
Impurity | As2O3 ppm (max) | 400 | 300 | 200 | 50 | |
PbO ppm(max) | 400 | 300 | 100 | 50 | ||
Fe2O3 ppm(max) | 50 | 20 | 10 | |||
CuO ppm(max) | 20 | 20 | 10 | |||
Se ppm (max) | 20 | 20 | 5 | |||
Physical property | L | 96 | 97 | 97 | ||
B | 0.90 | 0.90 | 0.90 | |||
MOISTURE % | 0.03 | 0.02 | 0.02 | |||
SOLUBILITY IN 2N HCl (1%) | ok | ok | ok | |||
ABSORBANCE OF 1% SOLN. IN MEG AT 420 NM, 5CM CELL | 0.04 | 0.035 | 0.03 | |||
White degree | 96 | 97 | 98 | |||
Average size(µm) | 0.3-0.6 | 0.3-0.6 | 0.3-0.5 | |||
Application:
1. Mainly used as polyester catalytic in the synthetic fiber industry. It is the product with high solubility in ethylene glycol and this allows the products to be introduced into the PET reactor as a solution or suspension instead of powder form.
2. used as a fire retardant in the membranes of plastic industry ,the enclosures of electric devices and household electric appliances,such as PVC, PP, PE, PS, ABS and PU, etc..
3. Used as filling, covering agents and retardants for rubber, ceramics, enamels, fabrics and fiber products.
4.Used as catalytic agent in organic synthesis.
