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Merck
CN
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746363

Sigma-Aldrich

硫酸钠

anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%

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About This Item

线性分子式:
Na2SO4
CAS号:
7757-82-6
分子量:
142.04
EC 号:
231-820-9
MDL编号:
MFCD00003504
UNSPSC代码:
12352302
PubChem化学物质编号:
329765762
NACRES:
NA.21

等级

ACS reagent
anhydrous

质量水平

100

Agency

suitable for EPA 1613

产品线

Redi-Dri™

检测方案

≥99%

形式

powder

质量

free-flowing

杂质

≤0.01% insolubles
≤5 ppm N compounds

缺失

≤0.5% loss on ignition

pH值（酸碱度）

5.2-9.2 (25 °C, 5%)

mp

884 °C (lit.)

密度

2.68 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%

痕量阳离子

Ca: ≤0.002%
Fe: ≤0.001%
K: ≤0.002%
Mg: ≤0.001%
heavy metals: ≤5 ppm (by ICP-OES)

SMILES字符串

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

InChI

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

InChI key

PMZURENOXWZQFD-UHFFFAOYSA-L

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相关类别

应用

硫酸钠可用作脱水剂，用于通过1,3-二芳基-2-丙烯-1-酮和盐酸羟胺的缩合合成1,3-二芳基-2-丙烯-1-酮肟。它也可用作有机合成中的干燥剂，用于去除有机提取物中的微量水。它用于干燥几乎所有的化合物，包括脂肪酸、醛、酮以及烷基和芳基卤化物。

特点和优势

  • 提高效率——免除需要松散硬化粉末的时间和精力
  • 更加安全——无需使用工具大力敲碎团块
  • 更加环保——不会粘在包装上，减少了浪费
  • 更加经济——制备和溶剂化速度更快，提高效率并节约成本
  • 质量保证——经过专业检测的出色品质，无抗结剂添加
  • 灵活的用量选择——有从研究到放大级别的用量规格可供选择。

法律信息

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

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