We can provide you with pharma grade and cosmetic grade Epsom Salt, produced in FDA facilities, that will keep your water cleaner for longer.
| Item | HG/T 5737-2020 (China Cosmetic MgSO4 Standard) | USP39 (United States Pharmacopeia) | BP2020 （British Pharmacopoeia） | EP9.0 （European Pharmacopoeia） |
| Appearance | White crystalline, odourless | ——— | A white,crystalline powder or brilliant, colourless crystals | A white,crystalline powder or brilliant, colourless crystals |
| Main content | MgSO4 (on dry basis)≧99% | 99.0％-100.5％ | 99.0％-100.5％ | 99.0％-100.5％ |
| Chlorine（Cl） | ——— | ≤140ppm | ≤300ppm | ≤300ppm |
| Iron（Fe） | ——— | ≤20ppm | ≤20ppm | ≤20ppm |
| Arsenic（As） | ≤2ppm | ——— | ≤2ppm | ≤2ppm |
| Heavy metals （as Pb） | ——— | ≤10ppm | ≤10ppm | ≤10ppm |
| Lead（Pb) | ≤5ppm | ——— | ——— | ——— |
| Selenium（Se） | ——— | ≤30ppm | ——— | ——— |
| Mercury（Hg） | ≤1ppm | ——— | ——— | ——— |
| Cadmium（Cd） | ≤5ppm | ——— | ——— | ——— |
| Loss on drying | 40.0~52.0 | 48-52% | 48-52% | 48-52% |
| Solubility/Clarify | ——— | ——— | Dissolve 5.0g in50ml water is clear and colourless | dissolove 5.0g in 50ml water is clear and colourless |
| PH value | 5.0~9.5 | Between 5.0 and 9.2,in a solution (1 in 20) | To 10ml 10% w/v solution add 0.05 ml o f phenol red solution. Not more than 0.2ml of 0.01M hydrochloric acid or 0 . 01M sodium hydroxide is required to change the colour of the indicator. | To 10ml 10% w/v solution add 0.05 ml of phenol red solution.Not more than 0.2ml of 0.01M hydrochloric acid or 0.01M sodium hydroxide is required to change the colour of the indicator. |
| TOC(Total Organic Carbon) | ≤30ppm | ——— | ——— | ——— |
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