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239313

Sigma-Aldrich

硫酸钠

ACS reagent, ≥99.0%, anhydrous, granular

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About This Item

線性公式:
Na2SO4
CAS號碼:
分子量::
142.04
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.21

等級

ACS reagent
anhydrous

化驗

≥99.0%

形狀

granular

雜質

≤0.01% insolubles
≤5 ppm N compounds

損耗

≤0.5% loss on ignition

pH值

5.2-9.2 (25 °C, 5%)

mp

884 °C (lit.)

密度

2.68 g/mL at 25 °C (lit.)

負離子痕跡

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

正離子痕跡

Ca: ≤0.01%
Fe: ≤0.001%
K: ≤0.01%
Mg: ≤0.005%
heavy metals: ≤5 ppm (by ICP-OES)

儲存溫度

room temp

SMILES 字串

[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 密鑰

PMZURENOXWZQFD-UHFFFAOYSA-L

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應用

硫酸钠(无水)可在通过1,3-二芳基-2-丙烯-1-酮与盐酸羟胺在乙醇中缩合来合成1,3-二芳基-2-丙烯-1-酮肟的过程中用作催化剂。
NaSO4 还可以用作有机合成中的干燥剂,用于从有机提取物中除去痕量的水。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。

法律資訊

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

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


分析證明 (COA)

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Synthesis of 3-and 5-Alkyl-6-alkyl (aryl) tetrahydropyran-2, 4-diones by the Condensation of ?-Oxo Acid Esters with Aldehydes and Ketones
Lokot, IP, et al.
Chemistry of Heterocyclic Compounds, 37(6), 707-714 (2001)
Eagleson M.
Concise Encyclopedia Chemistry, 405-405 (1994)
The use of sodium sulfate as the globulin precipitant in the determination of proteins in blood.
Howe PE.
The Journal of Biological Chemistry, 49(1), 93-107 (1921)
How does sodium sulfate crystallize? Implications for the decay and testing of building materials.
Rodriguez-Navarro C, et al.
Cement and Concrete Research, 30(10), 1527-1534 (2000)
Alexander David Ardianrama et al.
Journal of colloid and interface science, 552, 485-493 (2019-06-04)
Although triangular silver (Ag) nanoplates are intrinsically unstable, this characteristic has been taken advantage of in the development of a novel sensing platform. However, most of these applications have relied on halide ions as etchants. In the current work, we

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