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1.05033

氢氧化钾

Name: 氢氧化钾
Brand: MM

pellets for analysis EMSURE^®

别名:

苛性钾

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关于此项目

线性分子式:

KOH

化学文摘社编号:

1310-58-3

分子量:

56.11

NACRES:

NA.21

EC Index Number:

215-181-3

UNSPSC Code:

12352305

MDL number:

MFCD00003553

eCl@ss:

38100303

Assay:

≥85.0% KOH basis (acidimetric)

Grade:

reagent grade

Form:

solid

Solubility:

1130 g/L

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属性

Quality Segment

300

grade

reagent grade

agency

suitable for SM 5210

vapor pressure

1 mmHg ( 719 °C)

product line

EMSURE^®

assay

≥85.0% KOH basis (acidimetric)

form

solid

potency

333 mg/kg LD₅₀, oral (Rat)

pH

14 (20 °C, 56 g/L in H₂O)

mp

361 °C (lit.)

solubility

1130 g/L

anion traces

carbonate (K₂CO₃): ≤1.0%, chloride (Cl^-): ≤0.005%, phosphate (PO₄^3-): ≤0.0005%, silicate (as SiO₂): ≤0.005%, sulfate (SO₄^2-): ≤0.0005%

cation traces

Al: ≤0.001%, Ca: ≤0.001%, Cu: ≤0.0002%, Fe: ≤0.0005%, N: ≤0.0005%, Na: ≤0.5%, Ni: ≤0.0005%, Pb: ≤0.0005%, Zn: ≤0.0025%, heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

SMILES string

[OH-].[K+]

InChI

1S/K.H2O/h;1H2/q+1;/p-1

InChI key

KWYUFKZDYYNOTN-UHFFFAOYSA-M

说明

Application

Potassium hydroxide (KOH) can be used:

To precipitate perchlorate ions after the addition of perchloric acid during the extraction of intracellular metabolites from yeast. It is also utilized to adjust the pH of the solution, ensuring optimal conditions for subsequent analysis.
In corrosion testing of anodized aluminium alloys to evaluate mass loss and corrosion resistance of the anodic layer.
To basify reaction mixtures, facilitating the derivatization needed for gas chromatography-mass spectrometry (GC-MS) analysis in the identification of metabolic precursors.

Analysis Note

含量（酸度，KOH）： ≥ 85.0 %
碳酸盐（以 K₂CO₃ 计）： ≤ 1.0 %
氯化物（Cl）： ≤ 0.005 %
磷酸盐（PO₄）： ≤ 0.0005％
硅酸盐（SiO₂）： ≤ 0.005 %
硫酸盐（SO₄）： ≤ 0.0005 %
总氮（N）： ≤ 0.0005 %
重金属（以铅计）： ≤ 0.0005 %
Al（铝）： ≤ 0.001 %
Ca（钙）： ≤ 0.001 %
Cu（铜）： ≤ 0.0002 %
Fe（铁）： ≤ 0.0005 %
Na（钠）： ≤ 0.5 %
Ni（镍）： ≤ 0.0005 %
Pb（铅）： ≤ 0.0005 %
Zn（锌）： ≤ 0.0025 %

Legal Information

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

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wgk

WGK 1

pictograms

GHS05,GHS07

signalword

Danger

hcodes

H290,H302,H314

pcodes

P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338

Hazard Classifications

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

存储类别

8B - Non-combustible corrosive hazardous materials

flash_point_f

Not applicable

flash_point_c