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Merck
CN

04269

磷酸二氢钠二水合物 二水合物

meets analytical specification of Ph. Eur., BP, USP, E 339, 98-100.5% (calc. to the dried substance)

别名:

磷酸二氢钠 二水合物

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关于此项目

线性分子式:
NaH2PO4 · 2H2O
化学文摘社编号:
13472-35-0
分子量:
156.01
PubChem Substance ID:
329747903
UNSPSC Code:
12161700
NACRES:
NA.25
EC Number:
231-449-2
MDL number:
MFCD00149209
Assay:
98-100.5% (calc. to the dried substance)
Form:
powder or crystals

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InChI key

VBJGJHBYWREJQD-UHFFFAOYSA-M

InChI

1S/Na.H3O4P.2H2O/c;1-5(2,3)4;;/h;(H3,1,2,3,4);2*1H2/q+1;;;/p-1

assay

98-100.5% (calc. to the dried substance)

form

powder or crystals

impurities

heavy metals (as Pb), complies, organic volatile impurities, complies, reducing matter, complies, related substances, complies, residual solvents, complies, ≤0.2% water-insoluble matter

loss

21.5-24.0% loss on drying, 130 °C

pH

4.1-5.0 (20 °C, 1%), 4.2-4.5 (20 °C, 5%)

anion traces

chloride (Cl-): ≤50 mg/kg, fluoride (F-): ≤10 mg/kg, sulfate (SO42-): ≤200 mg/kg

cation traces

Al:, in accordance, As: ≤1 mg/kg, Ca: ≤20 mg/kg, Ca:, in accordance, Cd: ≤1 mg/kg, Cu: ≤10 mg/kg, Fe: ≤5 mg/kg, Hg: ≤1 mg/kg, Mg: ≤20 mg/kg, Pb: ≤4 mg/kg, Zn: ≤10 mg/kg

suitability

complies for appearance of solution

Quality Level

200

quality

meets analytical specification of Ph. Eur., BP, USP, E 339

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相关类别

Application

磷酸二氢钠二水合物用于制备磷酸盐缓冲液。也用作高效液相色谱的流动相。

Biochem/physiol Actions

磷酸二氢钠是一种具有高缓冲能力的化学试剂，用于制备生物缓冲液。作为磷酸盐补充剂用于确定磷酸盐补充剂能否预防产前缺乏磷酸盐的极低出生体重儿的佝偻病。

存储类别

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCP4226
BCCN7797
BCCN7796
SDBB2649
SDBB2136

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