作用,特别适于紫外线和红外谱线。极微溶于水(18℃,87mg/L),微溶于稀酸(特别是硝酸)。致死量(豚鼠,经口)1.0g/kg。有刺激性。 密度:3.5740 熔点:1248℃ 沸点:2260℃ 备注: 以上描述,仅作参考,并不表示您收到的产品,与此项描述完全相符,产品的出厂标准,请参见质量标准。 质量标准 Q/(HG)SJ439-91 项目Item 分析纯 化学纯 (AR) (CP) 灼烧失重Ignition loss,% ≤ 11.0% 11.0% 含量(MgF)Assay,% ≥ 97.5% 95.0% 氯化物(Cl)Chloride,% ≤ 0.0005 0.02 硫酸盐(SO4)Sulfate,% ≤ 0.05 0.08 氮化合物(N)Nitrogen compound,% ≤ 0.005 0.03 硅(Si)Silicon,% ≤ 0.01 0.03 铁(Fe)Iron,% ≤ 0.0004 0.01 重金属(以Pb计)Heavy metals,% ≤ 0.003 0.01
99.99% metals basis:
外观Appearance colorless or transparent chunks X-射线衍射分析X-Ray Diffraction Conforms to Structure 纯度Purity ≥99.99% Based on Trace Metals Impurities of ICP ICP Assay Confirms magnesium component 灼烧残渣loss on ignition <0.5% (1 Hours, 1000 °C) 痕量金属分析total metallic impurities ≤100ppm by ICP Atomic emission
品级Grade 光谱纯 (optical grade, ≥99.99% metals basis) 外观Appearance colorless or transparent chunks X-射线衍射分析X-Ray Diffraction Conforms to Structure 纯度Purity ≥99.99% Based on Trace Metals Impurities of ICP ICP Assay Confirms magnesium component 灼烧残渣loss on ignition <0.5% (1 Hours, 1000 °C) 痕量金属分析total metallic impurities ≤100ppm by ICP Atomic emission 贮存 密封保存。 用途 用来制造陶器、玻璃、冶炼镁金属的助溶剂、光学仪器中镜头及滤光器的涂层。用于阴极射线屏的荧光材料、光学透镜的反折射剂及焊接剂,以及钛颜料的涂着剂。 联合国编号 Risk: R36/37/38- Safety : S26 - S37/39- Hazard : Xi -
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