EN2-萘酚-6-磺酸钠（钾）(薛佛氏盐)
别名：薛佛氏盐（Schaffer's Salt）
分子式：C10H7O4SNa(K)
分子量：246.22(钠盐),262.32(钾盐)
用 途：用于染料中间体及制造食用染料色素日落黄等
规 格：
| 指标 | 外观 Appearance | 化学含量Content | 纯度Purity(HPLC) | 乙萘粉2-Naphthol | R+G含量(HPLC) | don's(HPLC) | 水不溶 物insoluble maner in water | Fe | pb | Hg | As | |
| 规格 | ||||||||||||
| 钠盐 | 一级品 | 白色粉末 white powder | ≥80% | ≥99% | ≤0.1% | ≤0.3% | ≤0.1% | ≤0.1% | ≤25ppm | ≤5ppm | ≤1ppm | ≤1ppm |
| 二级品 | 白色粉末 white powder | ≥80% | ≥99% | ≤0.2% | ≤0.5% | ≤0.1% | ≤0.1% | ≤25ppm | ≤5ppm | ≤1ppm | ≤1ppm | |
| 钾盐 | 一级品 | 白色结晶性粉末 white crvstal | ≥95% | ≥99% | ≤0.1% | ≤0.3% | ≤0.1% | ≤0.1% | ≤20ppm | ≤5ppm | ≤1ppm | ≤1ppm |
| 二级品 | 白色结晶性粉末white crvstal | 90% | ≥99% | ≤0.2% | ≤0.5% | ≤0.1% | ≤0.1% | ≤20ppm | ≤5ppm | ≤1ppm | ≤1ppm | |
包 装：25公斤编织袋(内衬塑织袋)或50公斤纸板桶(内衬塑料袋)。
