13464-M
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:
分子量:
142.04
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-820-9
MDL number:
Assay:
99.0-100.5% (calc. to the dried substance)
Form:
crystalline
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
vapor pressure
<0.1 hPa ( 20 °C)
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)
Quality Level
density
2.68 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.02%
cation traces
As: ≤0.0002%, Ca: ≤0.005%, Fe: ≤0.005%, Mg: ≤0.005%, Zn: ≤0.03%
suitability
complies for appearance of solution
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General description
Sodium sulfate (Na2SO4) can be obtained directly via precipitation from a saturated solution of Na2SO4 at room temperature (20°C). Its crystallization and growth rates at room temperature (20°C) under various conditions have been investigated. Sodium sulfate can be produced during Leblanc process, from sodium chloride and sulfuric acid.
Application
Sodium sulfate (Na2SO4) may be employed as a reagent for the precipitation of globulins during the estimation of proteins in blood.
存储类别
13 - Non Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
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