在线播放精品一区二区啪视频,成人国产精品视频,欧美另类图片亚洲偷,精品一区二区三区免费爱,小小视频日本高清完整版,欧美亚洲国产精品久久久久,日韩在线专区

堿式水楊酸鉍 Bismuth subsalicylate

產(chǎn)品中心 > 原料藥產(chǎn)品 > 堿式水楊酸鉍 Bismuth subsalicylate

堿式水楊酸鉍 Bismuth subsalicylate

明珠制藥 傳承健康 試制未來(lái)
分享到:

分子式Molecular formula:C7H5Bi04

分子量Molecular weight:362.11

性狀:本品為白色或類白色粉末,能溶于酸、堿被分解,但不溶于水、醇和醚。無(wú)臭無(wú)味,遇光易變質(zhì),遇沸水被分解。

用  途:主要是抗螺旋體病藥的原料。

Description:This product is white or almost white powder,can dissolve in acid and alkali,but can not dissolve in water,alcohol and ether,no smell or taste,easily degenerate under light and decompose in the boiled water.

Usage:Used as anti—spirochaetosis material

質(zhì)量標(biāo)準(zhǔn)Quality standard:USP

檢測(cè)項(xiàng)目Test

檢測(cè)標(biāo)準(zhǔn)Specification

干燥失重Loss on dry

≤1.0%

硝酸鹽    Nitrate

≤0.4%

游離水楊酸    Free salicylic acid

≤2.0%

(Cu)    Copper

≤10ppm

(Ag)    Silver

≤10ppm

(Pb)    Lead

≤10ppm

(As)    Arsenic

≤10ppm

可溶性鉍    Soluble bismuth

≤40ppm

含量(以Bi計(jì))    Content of Bismuth

56.0%-59.4%

含量(以水楊酸計(jì))Content of total salicylates

36.5%-39.3%