| Customization: | Available |
|---|---|
| Powder: | Yes |
| Certification: | GMP, HSE, ISO 9001, USP, BP |
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| property |
Test method |
unit |
value |
Target |
min | Max |
| Specific surface area | ISO 9277, modified |
/g | 162 | 170 | 150 | 190 |
| PH value | ISO 787-9, modified | 4.3 | 3.7 | 4.7 | ||
| Loss on drying | ISO 787-2, modified | % | 0.1 | 0.5 | ||
| C content | ISO 3262-20, modified | % | 1.2 | 0.7 | 1.3 | |
| Appearance : Fluffy white powder | ||||||
| Typical value of SIO2 content is >99.8%(based on the ignited substance -according to ISO3262-20) | ||||||
| Typical value of HCI content is <0.025%(based on the ignited substance -according to ISO3262-20) | ||||||
|
Items |
Standard |
Result |
|
Appearance |
White to off-white powder |
White powder |
|
Assay (W/W dry basis) |
≥98.0% |
99.16 % |
|
Residue on ignition |
<0.5% |
0.256% |
|
Water (w/w by KF) |
≤1.0% |
0.420% |
|
pH Value(1% aq.) |
5~9 |
7.28 |
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