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Merck
CN

13464

硫酸钠

puriss., meets analytical specification of Ph. Eur., BP, USP, anhydrous, 99.0-100.5% (calc. to the dried substance)

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线性分子式:
Na2SO4
化学文摘社编号:
7757-82-6
分子量:
142.04
NACRES:
NA.21
PubChem Substance ID:
329750184
UNSPSC Code:
12352302
EC Number:
231-820-9
MDL number:
MFCD00003504
Assay:
99.0-100.5% (calc. to the dried substance)
Form:
crystalline

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产品名称

硫酸钠, puriss., meets analytical specification of Ph. Eur., BP, USP, anhydrous, 99.0-100.5% (calc. to the dried substance)

InChI key

PMZURENOXWZQFD-UHFFFAOYSA-L

InChI

1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2

SMILES string

[Na+].[Na+].[O-]S([O-])(=O)=O

grade

puriss.

assay

99.0-100.5% (calc. to the dried substance)

form

crystalline

quality

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

impurities

acidity or alkalinity, complies
 residual solvents, complies
≤0.001% heavy metals (as Pb)
≤0.04% free alkali (as NaOH)
≤0.05% free acid (as H2SO4)

loss

≤0.5% loss on drying, 130 °C

pH

5.2-8 (20 °C, 50 g/L)

mp

884 °C (lit.)

density

2.68 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤200 mg/kg

cation traces

As: ≤2 mg/kg
Ca: ≤50 mg/kg
Fe: ≤50 mg/kg
Mg: ≤50 mg/kg
Zn: ≤300 mg/kg

suitability

complies for appearance of solution

Quality Level

200

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相关类别

Application

在估算血液的蛋白质含量时，硫酸钠（Na2SO4）可用作沉淀球蛋白的试剂。

General description

硫酸钠（Na2SO4）可以在室温（20°C）下通过从饱和的Na2SO4溶液中直接沉淀获得。其在各种条件下于室温（20℃）进行结晶和生长速率已有研究。 在Leblanc过程中，可通过氯化钠和硫酸生成硫酸钠。

存储类别

11 - Combustible Solids

wgk

WGK 3

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
SDBB7045
STBL0898
STBK8581
STBK7512
STBK6141

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