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31459
Fluka
Sodium thiosulfate pentahydrate
SKU
31459
Puriss. p.a., ACS Reagent, Reag. ISO, Reag. Ph. Eur., ≥99.5%
Synonym(s)
Sodium thiosulphate
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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 Na2S2O3 · 5H2O | MDL Number |
| Molar Mass 248.18 g/mol | Synonyms Sodium thiosulphate |
Documents
Specifications
| Property | Value |
|---|---|
| assay | Min. 99.5 % |
| water insoluble matter | Max. 0.005 % |
| pH (5 %, 25 °C) | 6.0 - 7.5 |
| pH (10 %, 20°C) | 6.0 - 8.4 |
| calcium (Ca) | Max. 0.002 % |
| copper (Cu) | Max. 0.0005 % |
| iron (Fe) | Max. 0.0005 % |
| potassium (K) | Max. 0.001 % |
| magnesium (Mg) | Max. 0.001 % |
| lead (Pb) | Max. 0.0005 % |
| chloride (Cl) | Max. 0.01 % |
| sulfate and sulfite(as SO4) | Max. 0.1 % |
| sulfide (S) | Max. 0.0001 % |
| total N | Max. 0.002 % |
| appearance of the solution | complying |
Properties
| Property | Value |
|---|---|
| Autoignition Temperature | Not auto-flammable |
| Boiling Point/Range | Decomposes on heating |
| Certification | ACS Reagent, ISO, Ph. Eur. |
| Color | Colorless |
| Density | 1.73 g/cm3 (20 °C) |
| Flashpoint | Not applicable |
| Form | Crystalline |
| Grade | ACS Grade |
| Incompatible Materials | Incompatible with strong acids, oxidizers and nitrates. |
| Lower Explosion Limit | Not applicable |
| Melting Point/Range | 48 °C (Decomposition) |
| Partition Coefficient | No data available |
| Purity Percentage | 99.50 |
| Purity Details | >=99.50% |
| Solubility in Water | 794 g/l (0 °C) |
| Upper Explosion Limit | Not applicable |
| Vapor Pressure | No data available |
| Viscosity | Not applicable |
| pH-Value | 6.0-8.4 at 100 g/l (20 °C) |
| Product Line | Puriss. p.a. |
| Storage Temperature | Ambient |
Safety Information
| Property | Value |
|---|---|
| Hazard Class | N/A |
| Package Group | N/A |
| UN ID | N/A |
