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Potassium Hydroxide 85% AR Grade Reagent

Cas Number:1310-58-3
Formula: KOH
Molar Mass:56.11
EC Number:215-181-3

Quantity:
  • AR
  • LABOR
  • 219102129

Potassium Hydroxide 85% AR Grade Reagent


Cas Number:1310-58-3

Formula: KOH

Molar Mass:56.11

EC Number:215-181-3


Physicochemical properties:

White granules, block or stick. Strong alkaline and corrosive. It is easy to absorb moisture in the air and deliquesce, and absorb carbon dioxide to form potassium carbonate. It can be dissolved in about 0.6 parts of hot water, 0.9 parts of cold water, 3 parts of ethanol, 2.5 parts of glycerin. A large amount of heat is generated when dissolved in water, alcohol or treated with an acid. The pH of the 0.1 mol/L solution is 13.5. The relative density is 2.044. The melting point is 380 ° C (anhydrous).


Usage:

Acid-base neutralization adjusts the pH of the solution. Carbon dioxide absorber. Saponifier.


Packing:

500g/25kg






Item of Analysis

Standard

Content,%

85.0 min

Carbonate (as K2CO3),%

1.5 max

Clear degree is tested

4 max

Chloride(Cl),%

0.01 max

Sulfate(SO4),%

0.005 max

Nitrogen compounds(N),%

0.001 max

Phosphate(PO4),%    

0.005 max

Silicate(SiO2),%

0.02 max

Sodium(Na),%  

2.0 max

Aluminum(Al),%

0.005 max

Calcium(Ca),%

0.005 max

Iron(Fe),%

0.001 max

Nicke(Ni),%

0.0005 max

Heavy metals(as Pb),%

0.002 max



Symbol 

Signal word 

Danger

Hazard statement

H290


H302


H314


H402

Precautionary statements—Prevention

P234


P260


P264


P270


P273


P280

Precautionary statements—Response

P301+P312+P330


P301+P330+P331


P303+P361+P353


P304+P340+P310


P305+P351+P338+P310


P363


P390

Precautionary statements—Storage

P405


P406

UN No.

1813

Hazard Class

8

Package Group

II

Flash point

No Information

Melting point

380℃




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