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12619

Sigma-Aldrich

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

同義詞:

偏硫代硫酸钾, 偏重亚硫酸钾

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About This Item

線性公式:
K2S2O5
CAS號碼:
分子量::
222.32
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.21
暫時無法取得訂價和供貨情況

等級

puriss.

化驗

95.0-101.0% (iodometric)

形狀

powder

品質

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

雜質

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值

3.5-4.5 (20 °C, 5%)

負離子痕跡

chloride (Cl-): ≤100 mg/kg

正離子痕跡

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

適合性

in accordance for appearance of solution

SMILES 字串

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

InChI

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

InChI 密鑰

RWPGFSMJFRPDDP-UHFFFAOYSA-L

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象形圖

Corrosion

訊號詞

Danger

危險聲明

危險分類

Eye Dam. 1

安全危害

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1


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