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31268
Fluka
Potassium disulfite
SKU
31268
Puriss. p.a., powder, ≥96% (iodometric)
Synonym(s)
Potassium metabisulfite; Potassium pyrosulfite
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General Information:
- Leading the industry for over 65 years
- Honeywell now delivers Fluka™ premium grade inorganic reagents worldwide – with consistency, purity and accuracy assured
| Brand Fluka | CAS Numbers (All) | EC Number | Linear Formula K2S2O5 | MDL Number |
| Molar Mass 222.32 g/mol | RTECS Number TT4920000 | Synonyms Potassium metabisulfite; Potassium pyrosulfite |
Documents
Specifications
| Property | Value |
|---|---|
| assay (iodometric) | 96 - 101.0 % |
| arsenic (As) | Max. 0.0001 % |
| copper (Cu) | Max. 0.001 % |
| iron (Fe) | Max. 0.0005 % |
| lead (Pb) | Max. 0.0005 % |
| zinc (Zn) | Max. 0.001 % |
| chloride (Cl) | Max. 0.005 % |
Properties
| Property | Value |
|---|---|
| Autoignition Temperature | Not auto-flammable |
| Boiling Point/Range | Not applicable |
| Color | White |
| Density | 2.3 g/cm3 (20 °C) |
| Flashpoint | Not applicable |
| Form | Powder |
| Grade | ACS Grade |
| Incompatible Materials | Contact with strong acids liberates sulphur dioxide, Oxidizing agents |
| Lower Explosion Limit | Not applicable |
| Melting Point/Range | Decomposes without melting. |
| Partition Coefficient | Not applicable |
| Purity Percentage | 96.00 |
| Purity Details | >=96.00% |
| Solubility in Water | 495 g/l (25 °C) |
| Upper Explosion Limit | Not applicable |
| Vapor Pressure | Negligible |
| Viscosity | Not applicable |
| pH-Value | 3-4.5 at 22.2 g/l |
| Product Line | Puriss. p.a. |
| Storage Temperature | Ambient |
Safety Information
| Property | Value |
|---|---|
| Hazard Class | N/A |
| Package Group | N/A |
| UN ID | N/A |
