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Merck
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Key Documents

1.05545

Supelco

Potassium hydroxide solution

47%, for analysis EMSURE®

别名:

KOH Solution 47%

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About This Item

分類程式碼代碼:
12352305
NACRES:
NA.21

product name

氢氧化钾溶液47%, for analysis EMSURE®

品質等級

產品線

EMSURE®

形狀

liquid

濃度

46.0-48.0% KOH

雜質

≤0.0001% As (Arsenic)
≤0.0003% Total nitrogen (N)
≤0.0005% Ca (Calcium)
≤0.0005% Cu (Copper)
≤0.0005% Fe (Iron)
≤0.0005% Heavy metals (as Pb)
≤0.0005% Mg (Magnesium)
≤0.0005% Ni (Nickel)
≤0.0005% Pb (Lead)
≤0.0005% Phosphate (PO4)
≤0.0005% Zn (Zinc)
≤0.001% Al (Aluminium)
≤0.002% Sulfate (SO4)
≤0.004% Chloride (Cl)
≤1.0% Carbonate (as K2CO3)

pH值

>13.5 (20 °C in H2O)

儲存溫度

2-30°C

分析報告

含量测定(酸量滴定法):46.0 - 48.0 %
碳酸盐(以K₂CO₃计): ≤ 1.0 %
氯化物(Cl): ≤ 0.004 %
磷酸盐(PO₄): ≤ 0.0005 %
硫酸盐(SO₄): ≤ 0.002 %
总氮(N): ≤ 0.0003 %
重金属(以铅计): ≤ 0.0005 %
Al(铝): ≤ 0.001 %
As(砷): ≤ 0.0001 %
Ca(钙): ≤ 0.0005 %
Cu(铜): ≤ 0.0005 %
Fe(铁): ≤ 0.0005 %
Mg(镁): ≤ 0.0005 %
Ni(镍): ≤ 0.0005 %
Pb(铅): ≤ 0.0005 %
Zn(锌): ≤ 0.0005 %

法律資訊

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

象形圖

CorrosionExclamation mark

訊號詞

Danger

危險聲明

危險分類

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

儲存類別代碼

8B - Non-combustible, corrosive hazardous materials

水污染物質分類(WGK)

WGK 1


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实验方案

Folic acid or folate is classified as a B vitamin (B9). Folic acid is synthetically produced, and used in fortified foods and supplements. Folate is converted by humans to dihydrofolate (dihydrofolic acid), tetrahydrofolate (tetrahydrofolic acid), and other derivatives, which have various biological activities.

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