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S9390

Sigma-Aldrich

磷酸钠 二元 七水合物

ACS reagent, 98.0-102.0%

别名:

磷酸氢二钠, 磷酸氢二钠 七水合物

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1 ML
¥872.08

¥872.08

国内现货，预计发货时间2025年4月14日详情

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1 ML
¥872.08

About This Item

线性分子式:
Na2HPO4 · 7H2O
CAS号:
7782-85-6
分子量:
268.07
EC 号:
237-707-0
MDL编号:
MFCD00149180
UNSPSC代码:
12352302
PubChem化学物质编号:
329824623
NACRES:
NA.21

¥872.08

国内现货，预计发货时间2025年4月14日详情

获取大包装报价

等级

ACS reagent

质量水平

200

蒸汽密度

4.9 (vs air)

方案

98.0-102.0%

表单

powder

杂质

≤0.005% Insoluble matter

pH值（酸碱度）

8.7-9.3 (25 °C, 5% in solution)

密度

1.68 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.005%

痕量阳离子

Fe: ≤0.001%
heavy metals: ≤0.001% (by ICP)

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此商品
Y00022594867040334
N-Nitrosodimethylamine (NDMA) solution certified reference material, 5000 μg/mL in methanol, ampule of 1 mL

CRM40059

N-Nitrosodimethylamine (NDMA) solution

N-Nitroso-dimethylamine European Pharmacopoeia (EP) Reference Standard

Y0002259

N-Nitroso-dimethylamine

N-Nitrosodimethylamine (NDMA) solution certified reference material, 200 μg/mL in methanol

48670

N-Nitrosodimethylamine (NDMA) solution

N-Nitrosodiethylamine (NDEA) solution certified reference material, 5000 μg/mL in methanol

40334

N-Nitrosodiethylamine (NDEA) solution

format

single component solution

format

-

format

single component solution

format

single component solution

Quality Level

100

Quality Level

-

Quality Level

100

Quality Level

100

grade

certified reference material, TraceCERT®

grade

-

grade

certified reference material, TraceCERT®

grade

certified reference material, TraceCERT®

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-30°C

storage temp.

2-8°C

concentration

5000 μg/mL in methanol

concentration

in methanol

concentration

200 μg/mL in methanol

concentration

5000 μg/mL in methanol

一般描述

七水合磷酸二钠是磷酸二钠（DSP）或正磷酸氢二钠的水合形式。DSP 被广泛用作 pH 调节剂和生理盐水泻药。

应用

七水二磷酸钠、磷酸一碱钾和 NaCl 在去离子水中的混合物用于制备磷酸盐缓冲盐水（PBS，pH值7.4）。PBS 在生物学研究中用作缓冲溶液，以保持 pH 恒定。

储存分类代码

13 - Non Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

    • 历史批次信息供参考:

    分析证书(COA)

    Lot/Batch Number
    0000418566
    0000418565
    0000418564
    0000418566
    0000418564

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