外觀：白色結(jié)晶
水分：≤0.5%
重金屬：≤20
熾灼殘?jiān)?span lang="EN-US" style="font-size: 12pt; color: black; font-family: "Times New Roman"; mso-fareast-font-family: 宋體; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">≤0.5%
含量：≥98%