Assay≥97% HPLC≥98%
分子式:C9H11N2O9P Na2
分子量:368.15
CAS NO.:3387-36-8
EINECS登錄號(hào):222-211-9
質(zhì)量標(biāo)準(zhǔn):企業(yè)標(biāo)準(zhǔn)
包裝:25kg/桶。
Specification:
1
性狀
Description
白色或類白色粉末
White or almost white powder
白色粉末
White powder
2
鑒別(UV)
Identification(UV)
在262±1nm處有吸收
Max. absorption at 262±1nm
A280 / A260 = 0.36~0.40 A250 /A260 = 0.71~0.77
262.3nm
0.39
0.73
3
酸度
PH
7.0~8.5
8.1
4
水分
Water
≤26.0%
17.3%
5
溶液澄清度與顏色
Clarity and color of solution
無色澄清
Clear and Colorless
合格
Complies
6
溶液的透光率
Transmittance of solution
≥95.0%
99.0%
7
重金屬
Heavy metal
≤10ppm
8
鉛
Lead
≤3ppm
9
砷
Arsenic
≤1.5ppm
10
汞
Mercury
≤0.1ppm
11
鎘
Cadmium
≤1ppm
12
菌落總數(shù)
Total plate count Units
≤300cfu/g
60
13
霉菌和酵母
Yeast and Mold
≤25cfu/g
14
大腸桿菌
E.coil
Absence/1g
15
沙門氏菌
Salmonella
Absence/25g
16
含量(干基)(UV)
Assay(on dried basis)(UV)
≥97.0%
99.8%
17
純度
Purity(HPLC)
≥98.0%
98.9%
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