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Merck
CN

1.06516

五水硫代硫酸钠

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

别名:

五水硫代硫酸钠

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关于此项目

经验公式(希尔记法):
Na2O3S2 · 5H2O
化学文摘社编号:
分子量:
248.18
UNSPSC Code:
12352302
EC Index Number:
231-867-5
NACRES:
NA.21
MDL number:
Assay:
99.5-101.0% (iodometric)
Grade:
ACS reagent
Form:
solid
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grade

ACS reagent

Quality Level

agency

reag. ISO, reag. Ph. Eur., suitable for SM 2310, suitable for SM 2320, suitable for SM 4500 - NH3

product line

EMSURE®

assay

99.5-101.0% (iodometric)

form

solid

potency

>5000 mg/kg LD50, oral (Rat)

impurities

≤0.005% Insoluble matter

pH

6.0-7.5 (20 °C, 100 g/L in H2O)

mp

48 °C

density

1.74 g/cm3 at 20 °C

bulk density

1000 kg/m3

anion traces

chloride (Cl-): ≤0.008%, sulfate, sulfite (as SO42-): ≤0.1%, sulfide (S2-): passes test

cation traces

Ca: ≤0.002%, Cu: ≤0.0005%, Fe: ≤0.0005%, K: ≤0.001%, Mg: ≤0.001%, N: ≤0.002%, Pb: ≤0.0005%, heavy metals (as Pb): ≤0.001%

storage temp.

2-30°C

SMILES string

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

InChI

1S/2Na.H2O3S2.5H2O/c;;1-5(2,3)4;;;;;/h;;(H2,1,2,3,4);5*1H2/q2*+1;;;;;;/p-2

InChI key

PODWXQQNRWNDGD-UHFFFAOYSA-L

Application


  • Synthesis of Aryl Amides from Acyl-Bunte Salts and Aryl Azides: 本文详细介绍了五水硫代硫酸钠在合成有机化学中的应用——特别是在芳基酰胺的合成中——说明了其在促进复杂化学反应中的效用(Chen et al., 2023)。

Analysis Note

含量测定(碘量滴定法):99.5 - 101.0 %
鉴别:通过测试
溶液外观:通过测试
不溶物质: ≤ 0.005%
pH值(5%;水;25°C):6.0 - 7.5
pH值(10 %;水):6.0 - 7.5
氯化物(Cl): ≤ 0.008 %
硫酸盐和亚硫酸盐(以SO₄计): ≤ 0.1 %
硫化物(S):通过测试
重金属(以铅计): ≤ 0.001 %
总氮(N): ≤ 0.002 %
Ca(钙): ≤ 0.002 %
Cu(铜): ≤ 0.0005 %
Fe(铁): ≤ 0.0005%
K(钾): ≤ 0.001 %
Mg(镁): ≤ 0.001 %
Pb(铅): ≤ 0.0005 %
符合ACS、ISO、Reag.Ph Eur

Other Notes

替代:SX0815-1; SX0815

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany


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存储类别

13 - Non Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable



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