中文PRODUCTS
Alias:Scha ffer's salt(Schaffer's Salt)
Molecular formula:C10H7O4SNa(K)
Molecular weight:246.22(sodium salt),262.32(potassium salt)
Use:It can be used in dyeing internediate and to produce food dyepigment sunset yellow.
Specification:
| Index | Appearance | Content | Purity(HPLC) | 2-Naphthol | (HPLC) | don's(HPLC) | insoluble maner in water | Fe | pb | Hg | As | |
| Specification | ||||||||||||
| Sodium salt | Firsts | white powder | ≥80% | ≥99% | ≤0.1% | ≤0.3% | ≤0.1% | ≤0.1% | ≤25ppm | ≤5ppm | ≤1ppm | ≤1ppm |
| Seconds | white powder | ≥80% | ≥99% | ≤0.2% | ≤0.5% | ≤0.1% | ≤0.1% | ≤25ppm | ≤5ppm | ≤1ppm | ≤1ppm | |
| Potassium salt | Firsts | white crvstal | ≥95% | ≥99% | ≤0.1% | ≤0.3% | ≤0.1% | ≤0.1% | ≤20ppm | ≤5ppm | ≤1ppm | ≤1ppm |
| Seconds | white crvstal | 90% | ≥99% | ≤0.2% | ≤0.5% | ≤0.1% | ≤0.1% | ≤20ppm | ≤5ppm | ≤1ppm | ≤1ppm | |
Packing:25kg woven bag lined with plastic foil or 50 kg fiber can lined with plastic foil.
