Product Information
| Catalogue Number | : TK.181207 |
| Chemical Name | : Sodium metabisulfite (sodium bisulfite) |
| Grade | : Extra pure |
| Synonyms | : Sodium metabisulfite, Sodium pyrosulfite, Disulfite, Pyrosulfite |
| Cas No | : 7681-57-4 |
| EC Index Number | : 016-063-00-2 |
| EC Number | : 231-673-0 |
| Hill Formula | : Na₂O₅S₂ |
| Chemical Formula | : Na₂O₅S₂ |
| Molar Mass | : 190.11 g/mol |
| HS Code | : 2832.10.00 |
| Assay | : >= 98,0% |
| Sulfur Dioxide(SO2) | : 66,0 - 67,0% |
| Sodium Sulfite(Na2SO3) | : <=2,0% |
| Sodium Sülfate(Na2SO4) | : <=2,0% |
| Sodium Thiosulfate(Na2S2O3) | : <=0,03% |
| Iron(Fe) | : <=0,0005% |
| Heavy Metals (as Pb) | : <=0,001% |
| Chloride ( as Cl) | : <=0,005% |
| Arsenic (As) | : <=0,00005% |
| Lead(Pb) | : <=0,00005% |
| pH (10%,H2O) | : 4,0 - 6,0 |
| Mercury(Hg) | : 0,00001% |
Physical Chemical Information
| Density(20C) | : 2.36 g/cm3 (20°C) |
| WGK | : WGK 1 slightly hazardous to water |