| ITEMS | Specifications | ||
| Tech / Industry Grade | Food Grade | ||
| ??? Purity? [K4Fe(CN )6?.?3H2O]??% >=</p> | 99.0 | 99.0 | |
| ?? Chloride [? Cl-?] ??% =< | 0.20 | 0.20 | |
| ?? Water insoluble matter % =< | 0.01 | 0.01 | |
| ?? Moisture???% =< | 0.50 | 0.30 | |
| ?? Sodium [ Na+?] % =< | 0.30 | 0.20 | |
| ?? Hexacyanoferrate (Ⅲ) acid salt?%=< | ? | Passed | |
| ?? Cyanide [? CN-?] ?% =< | ? | Passed | |
| ?? Arsenic [ As ]??% =<???? | ? | 0.0001 | |