CAS Number
18996-35-5
Formula
C6H7NaO7
Weight
M: 214,11 EC: 242-734-6 NC: 2918 15 00
| Minimum assay (Acidim.) | 99 % |
| pH of 5% solution | 3,5-3,8 |
| MAX. IMPURITIES | |
| Insoluble matter in H2O | 0,005 % |
| Darkened substances by H2SO4 | p/t. |
| Chloride (Cl) | 0,001 % |
| Phosphate (PO4) | 0,001 % |
| Oxalate (C2O4) | 0,01 % |
| Sulphate (SO4) | 0,005 % |
| Ammonium (NH4) | 0,001 % |
| Heavy metals (as Pb) | 0,0005 % |
| As | 0,00004 % |
| Ca | 0,01 % |
| Cu | 0,0005 % |
| Fe | 0,0005 % |
| K | 0,05 % |
| Ni | 0,0005 % |
| Pb | 0,0005 % |
| Zn | 0,0005 % |
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