POTASSIUM HYDROXIDE

PRODUCT IDENTIFICATION

CAS NO. 1310-58-3

POTASSIUM HYDROXIDE 

EINECS NO. 215-181-3
FORMULA KOH
MOL WT. 56.1
H.S. CODE 2815.20

TOXICITY

Oral rat LD50: 273 mg/kg
SYNONYMS Potassium hydrate; Caustic potash; Lye; potassa;
Hydroxyde De Potassium (French); Potasse Caustique (French); Kaliumhydroxid (German); Kaliumhydroxyde (Dutch); Potassa; Potassio Idrossido Di (Italian); K(OH); Other RN: 29857-72-5, 71769-53-4

SMILES

O[K]

CLASSIFICATION

 

EXTRA NOTES

EPA Pesticide Chemical Code 075602
UN1813 [Corrosive]
UN1814 [Corrosive]

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE odorless white, deliquescent solid
MELTING POINT 360 C
BOILING POINT 1320 C
SPECIFIC GRAVITY 2.044
SOLUBILITY IN WATER

Soluble

pH 13.5 (0.1 molar solution)
VAPOR DENSITY  
AUTOIGNITION

 

NFPA RATINGS Health: 3; Flammability: 0; Reactivity: 1

REFRACTIVE INDEX

 
FLASH POINT Not combustible, but contact with water may generate heat
STABILITY Stable under ordinary conditions

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking

Google Scholar Search

Drug Information Portal (U.S. National Library of Medicine) - Potassium hydroxide

PubChem Compound Summary - Potassium hydroxide

IPCS INCHEM -  Potassium hydroxide

KEGG (Kyoto Encyclopedia of Genes and Genomes) -  Potassium hydroxide

http://www.ebi.ac.uk/ -  Potassium hydroxide

http://www.ncbi.nlm.nih.gov/ -  Potassium hydroxide

Material Safety Data Sheet

http://www.panaceauniversity.org/
OxyChem Caustic Potash Handbook

http://minerals.usgs.gov/minerals/
Production of potash in the United States increased slightly compared with that of 2001 and was approximately 1.2 million metric tons (Mt) of potassium oxide (K2O) equivalent (table 1) according to the U.S. Geological Survey (USGS), which developed domestic potash data from semiannual voluntary canvasses of U.S. operations.  Of the seven operations canvassed for both semiannual surveys, six responded.  Data were estimated for the nonrespondent for both surveys.  Data from the responding operators were estimated to represent about 98% of the total production listed in table 1.  There were five U.S. companies producing potash throughout the year from seven operations in three States.  Most of the domestic production was from southeastern New Mexico, where one company operated two mines and a second company operated one mine with multiple products.  The second company also operated a deep solution mine in Michigan.  The third State with potash production was Utah with three companies producing from three operations

Local:
Potassium Hydroxide, commonly called caustic potash with formula KOH, is a caustic compound of strong alkaline chemical dissolving readily in water, giving off much heat and forming a caustic solution. It is a white deliquescent solid in the form of pellets obtained by concentration of purified electrolytic potassium hydroxide solution with very low chloride content. It reacts violently with acid and is corrosive in moist air toward metals such as zinc, aluminium, tin and lead forming a combustible, explosive gas. It absorbs rapidly carbon dioxide and water from air. Contact with moisture or water will generate heat. Sodium hydroxide (Caustic soda) and potassium hydroxide (Caustic potash) are the two most important caustics. They are closely resembles in chemical properties and applications, e.g., in manufacturing liquid soap, in bleaching, and in manufacturing chemicals. Potassium hydroxide is the largest-volume potassium chemical for non-fertilizer use. Potassium Hydroxide is used in chemical manufacturing including potassium carbonate and other potassium chemicals, fertilizers, phosphates, agrochemicals, alkaline batteries and dyes.
APPLICATIONS: Potassium Hydroxide is used in chemical manufacturing including potassium carbonate and other potassium chemicals, fertilizers, phosphates, agrochemicals, alkaline batteries and dyes. It is also widely used in soap and bleaching industry.

SALES SPECIFICATION

APPEARANCE

white flakes

ASSAY

90.0% min

CARBONATE

0.5% max

CHLORIDES

0.01% max

SULPHATES

10ppm max

IRON

3max

HEAVY METAL

10ppm max

NICKEL

5ppm max

TRANSPORTATION
PACKING 25kgs, 50kgs in bag
HAZARD CLASS 8 (Packing group: II)
UN NO. 1813
SAFETY INFORMATION

HAZARD OVERVIEW

OSHA Hazards: Toxic by ingestion, Corrosive

GHS

 

SIGNAL WORD

Danger

PICTOGRAMS

HAZARD STATEMENTS

H302-H314

P STATEMENTS

P280-P305 + P351 + P338-P310

EC DIRECTIVES

 

HAZARD CODES

RISK PHRASES

22-35

SAFETY PHRASES

26-36/37/39-45

PRICE INFORMATION

 

 

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