7782-87-8 Usage
Description
Potassium hypophosphite is a white, opaque crystalline compound or powder with a pungent saline taste. It is highly deliquescent, meaning it readily absorbs moisture from the air, and is soluble in both water and alcohol. However, it decomposes when exposed to heat.
Uses
Used in Fire Safety Applications:
Potassium hypophosphite is used as a flame retardant in various industries, including plastics, textiles, and construction materials. Its ability to decompose upon heating helps to slow down the spread of flames and reduce the risk of fire.
Used in Chemical Synthesis:
In the chemical industry, potassium hypophosphite serves as an intermediate in the synthesis of other compounds, such as hypophosphorous acid and its derivatives. These compounds have applications in various fields, including pharmaceuticals, agrochemicals, and specialty chemicals.
Used in Water Treatment:
Potassium hypophosphite is used as a corrosion inhibitor and scale inhibitor in water treatment processes. Its ability to absorb moisture and form a protective layer on metal surfaces helps to prevent corrosion and scale buildup, ensuring the efficient operation of water treatment systems.
Used in Agriculture:
In agriculture, potassium hypophosphite is used as a fertilizer additive to improve the availability of phosphorus to plants. Its deliquescent nature allows it to dissolve easily in water, making it more accessible to plant roots and promoting healthy growth.
Used in Cosmetics and Personal Care:
In the cosmetics and personal care industry, potassium hypophosphite is used as a preservative and antimicrobial agent. Its ability to absorb moisture and inhibit the growth of microorganisms helps to maintain the freshness and safety of cosmetic and personal care products.
Production Methods
Potassium hypophosphite, KH2PO2, white solid, soluble, formed (1) by reaction of hypophosphorous acid and potassium carbonate solution, and then evaporating, (2) by reaction of potassium hydroxide solution and phosphorus on heating (poisonous phosphine gas evolved).
Hazard
Moderate fire risk, may explode if ground
with chlorates, nitrates, or other strong oxidizing
agents.
Flammability and Explosibility
Notclassified
Check Digit Verification of cas no
The CAS Registry Mumber 7782-87-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,8 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 7782-87:
(6*7)+(5*7)+(4*8)+(3*2)+(2*8)+(1*7)=138
138 % 10 = 8
So 7782-87-8 is a valid CAS Registry Number.
InChI:InChI=1/K.HO2P/c;1-3-2/h;(H,1,2)/q+1;/p-1
7782-87-8Relevant articles and documents
The alkali hypophosphites KH2PO2, RbH 2PO4 and CsH2PO2
Naumova, Marina I.,Kuratieva, Natalia V.,Podberezskaya, Nina V.,Naumov, Dmitry Yu
, p. i53-i55 (2004)
The structures of the hypophosphites KH2PO2 (potassium hypophosphite), RbH2PO2 (rubidium hypophosphite) and CsH2PO2 (caesium hypophosphite) have been determined by single-crystal X-ray diff
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