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Merck
CN

12619

焦亚硫酸钾

puriss., meets analytical specification of Ph.Eur., BP, NF, FCC, E224, 95.0-101.0% (iodometric), powder, 51.8-57.6% sulfur dioxide

别名:

偏硫代硫酸钾, 偏重亚硫酸钾

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关于此项目

线性分子式:
K2S2O5
化学文摘社编号:
16731-55-8
分子量:
222.32
NACRES:
NA.21
PubChem Substance ID:
329749774
UNSPSC Code:
12352302
EC Number:
240-795-3
MDL number:
MFCD00167605
Assay:
95.0-101.0% (iodometric)
Form:
powder

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产品名称

焦亚硫酸钾, puriss., meets analytical specification of Ph.Eur., BP, NF, FCC, E224, 95.0-101.0% (iodometric), powder, 51.8-57.6% sulfur dioxide

InChI key

RWPGFSMJFRPDDP-UHFFFAOYSA-L

InChI

1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2

SMILES string

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

grade

puriss.

assay

95.0-101.0% (iodometric)

form

powder

quality

meets analytical specification of Ph.Eur., BP, NF, FCC, E224

impurities

organic volatile impurities, complies (GC)
 residual solvents, in accordance
≤0.001% heavy metals (as Pb)
≤0.08% thiosulfate (S2O3)
51.8-57.6% sulfur dioxide

pH

3.5-4.5 (20 °C, 5%)

anion traces

chloride (Cl-): ≤100 mg/kg

cation traces

As: ≤2 mg/kg
Cu: ≤20 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
Pb: ≤2 mg/kg
Se: ≤5 mg/kg
Zn: ≤20 mg/kg

suitability

in accordance for appearance of solution

Quality Level

100

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相关类别

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H318

Hazard Classifications

Eye Dam. 1

supp_hazards

EUH031

存储类别

11 - Combustible Solids

wgk

WGK 1

法规信息

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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCN7524
BCCM7349
BCCL8387
BCCM2605
BCCL9072

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