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Merck
CN

60235

焦硫酸钾

puriss. p.a., ≥97.5% (T)

别名:

无水重硫酸钾

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关于此项目

经验公式(希尔记法):
K2S2O7
化学文摘社编号:
分子量:
254.32
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
232-216-8
MDL number:
Assay:
≥97.5% (T)
Form:
powder or crystals
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grade

puriss. p.a.

Quality Level

assay

≥97.5% (T)

form

powder or crystals

impurities

≤0.002% total nitrogen (N)

pH

1-2 (25 °C, 25.5 g/L)

density

2.28 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤5 mg/kg, phosphate (PO43-): ≤10 mg/kg

cation traces

Ag: ≤5 mg/kg, Al: ≤5 mg/kg, As: ≤5 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Tl: ≤5 mg/kg, Zn: ≤5 mg/kg

SMILES string

[K+].[K+].[O-]S(=O)(=O)OS([O-])(=O)=O

InChI

1S/2K.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2

InChI key

KAQHZJVQFBJKCK-UHFFFAOYSA-L

General description

Potassium disulfite (Potassium pyrosulfate) has been synthesized from potassium hydrogen sulfate, via melting.

Application

Potassium disulfite supported on silica may be used for the synthesis of ethyl pyruvate.

Other Notes

通过熔融作用分解碱性金属氧化物的试剂


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pictograms

Skull and crossbonesCorrosion

signalword

Danger

hcodes

Hazard Classifications

Acute Tox. 3 Inhalation - Eye Dam. 1 - Skin Corr. 1A

存储类别

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3



历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Catalytic Conversion of Diethyl Tartrate into Pyruvate over Silica-Supported Potassium Disulfate.
Sugiyama S, et al.
Bulletin of the Chemical Society of Japan, 65(8), 2083-2085 (1992)
Laura Schneider et al.
Bioresource technology, 234, 1-7 (2017-03-21)
The catalytic conversion of lignocellulosic biomass is attractive due to the feasible generation of valuable products such as reducing sugars which constitute the basic substrates for chemical and transportation fuel production, as well as the production of renewable hydrogen. This
R. Bock
Aufschlussmethoden der anorg. & org. Chemie (1972)



全球贸易项目编号

货号GTIN
60235-1KG04061826714836