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Merck
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12658

Sigma-Aldrich

硫酸钾

meets analytical specification of Ph. Eur., 99-101%

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About This Item

線性公式:
K2SO4
CAS號碼:
分子量::
174.26
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:

化驗

99-101%

形狀

solid

品質

meets analytical specification of Ph. Eur.

雜質

acidity or alkalinity, in accordance
residual solvents, complies
≤0.001% heavy metals (as Pb)

損耗

≤0.5% loss on drying, 130 °C

溶解度

boiling water: soluble 1 gm in 4 ml
glycerol: soluble 1 gm in 75 ml
water: soluble 1 gm in 8.3 ml
alcohol: insoluble

負離子痕跡

chloride (Cl-): ≤20 mg/kg

正離子痕跡

As: ≤2 mg/kg
Ca: ≤50 mg/kg
Fe: ≤10 mg/kg
Mg: ≤20 mg/kg
Na: ≤100 mg/kg

適合性

in accordance for appearance of solution

SMILES 字串

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

InChI

1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2

InChI 密鑰

OTYBMLCTZGSZBG-UHFFFAOYSA-L

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儲存類別代碼

11 - 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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Both the Kjeldahl and the Dumas methods for the determination of protein in foodstuffs are currently in use, but the empirical nitrogen factors used to convert the determined nitrogen content to protein content are based on the Kjeldahl method alone.
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This study investigated the preparation and characteristics of protein-coated microcrystals (PCMCs) from Pseudomonas cepacia lipase (PS) and K(2)SO(4), and their application in biodiesel synthesis, via single factorial experiments and response surface methodology (RSM), the optimized PCMC-PS exhibited high activity and

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