China High Quality Sodium Thiosulphate/Sodium Thiosulfate 99% Photo Grade, Find details about China Sodium Thiosulfate Anhydrous, Sodium Hyposulfite from High Quality Sodium Thiosulphate/Sodium Thiosulfate 99% Photo Grade
TEST ITEMS | SPECIFICATION | RESULT OF TEST REPORT |
ASSAY: | 99.00% MIN | 99.54% |
WATER INSOLUBLES: | 0.01% MAX | 0.007% |
SULPHIDES: | 0.001% MAX | 0.0008% |
Fe: | 0.001% MAX | 0.0005% |
S | 0.001% MAX | 0.0007% |
ITEMS | STANDARD | TEST RESULT |
Appearance | White powder crystal | Pass |
Purity (%) | 97.0min | 98.03% |
Insoluble substance in water(%) | 0.01%max | PASS |
Sulphide(%) | 0.001%max | PASS |
Fe(%) | 0.005%max | 0.0007% |
PH | 6.5~9.5 | 8.1 |
Particle size(mesh) | 20-80 | PASS |