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Ultra-high purity calcium stearate |
Quality standard |
Item |
Index |
High purity calcium stearate |
Ultra-high purity calcium stearate
(HA-Ⅱ) |
Ultra-high purity calcium stearate
(HA-Ⅲ) |
Appearance |
White flowing powder, no foreign substance and pigment |
Sieving rate % ≥ |
99.0 (74µm passed) |
99 (47µm passed) |
99 (47µm passed) |
Melting range ℃ |
150-160 |
150-160 |
150-160 |
Calcium content % |
6.6±0.2 |
6.6±0.2 |
- |
Content of volatile component(105℃-110℃; 2h)%≤ |
2.0 |
2.0 |
2.0 |
Bulk density g/cm3 ≤ |
0.20 |
0.20 |
0.20 |
Free acid (stearate) % ≤ |
0.10 |
0.50 |
0.50 |
Iodine value (I2) g/100g ≤ |
0.5 |
0.5 |
0.5 |
Water soluble salt % ≤ |
1.0 |
- |
- |
Lead, zinc, cadmium mg/kg ≤ |
5 |
- |
- |
Ash % |
- |
9.0-10.5 |
9.0-10.5 |
Contamination |
- |
Nil |
Nil |
Sodium(Na2O) % ≤ |
- |
- |
0.2 |
Chloride(Cl2)mg/kg ≤ |
- |
- |
300 |
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Application scope |
This product is used as halogen absorber, slipping agent and thermal stabilizer for PP and PE resin of various types, especially for BOPP and fiber-grade ultra-thin film, etc. |
Packing |
This product is packed in the carton or plastic laminated-film pack. The net weight of each pack is 10kg and each carton 20kg. |
Storage |
This product should be stored in the ventilated, cool and dry warehouse, and kept away from the heat source and fire. During transport, it is suggested to avoid sunshine and rain. |
Warranty period |
Within one year after its production is completed. If exceeding this period, it can also be used after being qualified by re-inspection. |
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