本品为极细白色粉末,该产品主要用于制药业中为发酵培养基、常用的缓冲剂,各种药品的填充剂、补钙剂等。
  This product is very fine white powder. It is used as culture medium for medicine fermention, buffer agent, filling medium, calcium supplement, etc.

技术标准(Technical standard): 中国药典2005版(CP 2005)

项目 Item 指标 Index
碳酸钙含量(以干基计), % ≥
Assay of CaCo3(dried) %
98.50
干燥失重, % ≤
Loss on drying, %
1.0
酸不溶物, % ≤
Acid-insoluble, %
0.2
铁盐, % ≤
Iron %
0.04
钡盐
Barium
合格
Qualified
砷盐 % ≤
Arsenic %
0.0004
镁及碱金属盐, % ≤
Magnesium and alkali salts, %
1.0
重金属, % ≤
Heavy metals %
0.003
游离碱 % ≤
Leaving alkali %
0.05
细度, 目
Fineness, mesh
1000
白度, ≥
Whiteness,
94

药品批准文号:国药准字H31020140
Medical Document NO. Approved: GUOYAOZHUNZI H31020140

 


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