Potassium hydroxide (formula :KOH, formula :56.11) White powder or flake solid. Melting point 360~406ºC, boiling point 1320~1324ºC, relative density 2.044g/cm3, flash point 52°F, refractive index n20/D1.421, vapor pressure 1mmHg(719ºC). Strong alkaline and corrosive. It is easy to absorb moisture in the air and deliquesce, and absorb carbon dioxide into potassium carbonate. Soluble in about 0.6 parts hot water, 0.9 parts cold water, 3 parts ethanol, 2.5 parts glycerin. Large amounts of heat are generated when dissolved in water, alcohol or treated with acid. A 0.1mol/L solution has a pH of 13.5. Moderately toxic, median lethal dose (rats, orally)1230mg/kg. Soluble in ethanol, slightly soluble in ether. It is extremely alkaline and corrosive, and its properties are similar to caustic soda.
Basic use
Inorganic industry is used as raw material for the production of potassium salts, such as potassium permanganate, potassium nitrite, dipotassium hydrogen phosphate, etc. The daily chemical industry is used as raw material for making potash soap, soaps for washing, soft soaps for washing hair, cream, cold cream, shampoo and so on. The pharmaceutical industry is used to manufacture progesterone, vanillin and other raw materials. The dye industry is used to make melamine dyes. The battery industry is used to make alkaline batteries. [4] Used as desiccant, absorbent, used in the production of potassium soap, oxalic acid and various potassium salts, and also used in electroplating, engraving, lithography, etc.; Mainly used as raw materials for potassium salt production, such as potassium permanganate, potassium carbonate and so on. In the pharmaceutical industry, it is used in the production of potassium borohydrin, amperolactone, sarhepatol, progesterone and testosterone propionate. It is used in light industry for the production of potash soaps, alkaline batteries, cosmetics (such as cold creams, creams and shampoos). In the dye industry, it is used to produce VAT dyes, such as VAT blue RSN. In the electrochemical industry, it is used for electroplating, engraving, etc. In the textile industry, it is used for printing and dyeing, bleaching and mercerizing, and is widely used as the main raw material for manufacturing artificial fibers and polyester fibers. In addition, it is also used for metallurgical heating agents and leather degreasing. Chemical basic raw materials, used in medicine, daily chemical industry, etc. ; It is used as an analytical reagent, saponification reagent, absorbent of carbon dioxide and water, and also in the pharmaceutical industry.
Storage method
Storage precautions [17] Store in a cool, dry and well-ventilated warehouse. Keep away from fire and heat. The temperature of the reservoir shall not exceed 35ºC, and the relative humidity shall not exceed 80%. The package must be sealed and protected from moisture. It should be stored separately from easy (can) combustibles and acids, and should not be mixed. Storage areas should be equipped with suitable materials to contain leaks.
Relevant measures
Protective measure
Respiratory protection: Wear a respirator if necessary.
Eye protection: Wear chemical safety glasses.
Protective clothing: Wear overalls (made of anticorrosive materials).
Hand protection: Wear rubber gloves (synthetic rubber).
Other: Shower and change clothes after work. Pay attention to personal hygiene.
First aid measure
Skin contact
Immediately rinse with water for at least 15 minutes. If possible, wash the wound with a weak acid (such as acetic acid, boric acid). Seek medical treatment for burns.
Eye contact
Immediately lift eyelids and rinse with running water or saline for at least 15 minutes. Or rinse with 3% boric acid solution. Seek medical attention.
suction
: Quickly remove from scene to fresh air. Give artificial respiration if necessary. Seek medical attention.
ingestion
: When the patient is awake, gargle immediately, take diluted vinegar or lemon juice orally, and seek medical attention.
Fire extinguishing method
: Use, sand, powder fire extinguisher, carbon dioxide, spray pipe and foam fire extinguisher, use spray pipe and fog fire extinguisher in case of large fire, pay attention to the items in the water caused by splashing burns.
Safety information
Packing grade: II
Danger category: 8
Customs Code: 2815200000
Dangerous Goods transport code: UN29243/PG2
WGKGermany: 1
Danger category code: R22; R35
Safety description: S7-S16-S36/37-S45-S36/37/39-S26
RTECS number: TT2100000
Dangerous goods mark :C :Corrosive; F:Flammable; T:Toxic; Xi:Irritant;
Audited Supplier 
Basic use
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