Identity
Classification
- Categories
- Inorganic Salts primary
Technical Data
Properties
| Property | Value | Unit |
|---|---|---|
| Physical state at 20 °C | Solid | — |
| Colour | White crystalline | — |
| Odour | Odorless | — |
| pH value | 3 - 4.5 | — |
| Melting point/ Freezing point [°C] | 150 °C | °C |
| Decomposition point [°C] | 150 °C | °C |
| Vapour density | 2.3 | — |
| Density [g/cm3] | 2.34 g/cm3 | g/cm3 |
| Solubility in water [% weight] | 22.2 g/L | g/L |
These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.
Specifications
| Parameter | Specification | Unit | Method |
|---|---|---|---|
| Appearance | White crystalline powder | — | — |
| Zinc (Zn) | Max 0.0025 % | % | — |
| Iron (Fe) | Max 0.002 % | % | — |
| Selenium (Se) | Max 0.0005 % | % | — |
| Arsenic (As) | Max 0.0002 % | % | — |
| Mercury (Hg) | Max 0.0001 % | % | — |
| Assay | 95 - 99.9 % | % | iodometric |
| Iodometric,SO2 | 54.8 - 57.6 % | % | — |
| Appearance of solution | Passes test | — | — |
| pH | 3 - 4.5 | — | — |
| Chloride (Cl) | Max 0.05 % | % | — |
| Heavy metal | Max 0.001 % | % | — |
| Thiosulphate | Passes test | — | — |
| Copper (Cu) | Max 0.0025 % | % | — |
Available grades
3 grades of this substance are listed. Each grade is a separate product with its own specifications, pack sizes and documents.
Packaging
| Pack size | SKU |
|---|---|
| 25 kg | RA002150-PK-25KG |
| 500 g | RA002150-PK-500G |
| 50 kg | RA002150-PK-50KG |
| 5 kg | RA002150-PK-5KG |