21049-36-5 Usage
General Description
Potassium perfluoroheptanoate, also known as perfluoroheptanoic acid potassium salt, is a chemical compound that belongs to the perfluorinated carboxylate family. It is a white powder that is soluble in water and has a variety of industrial applications. Potassium perfluoroheptanoate is primarily used as a surfactant in the production of fluoropolymer coatings, as well as in the manufacturing of lubricants, foams, and fire-extinguishing agents. It is also used as a wetting agent in the production of photographic films and in the formulation of high-performance cleaning and coating products. However, due to its potential environmental and health concerns, there is ongoing scrutiny and regulation around the use and disposal of potassium perfluoroheptanoate and other perfluorinated compounds.
Check Digit Verification of cas no
The CAS Registry Mumber 21049-36-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,4 and 9 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21049-36:
(7*2)+(6*1)+(5*0)+(4*4)+(3*9)+(2*3)+(1*6)=75
75 % 10 = 5
So 21049-36-5 is a valid CAS Registry Number.
InChI:1S/C7HF13O2.K/c8-2(9,1(21)22)3(10,11)4(12,13)5(14,15)6(16,17)7(18,19)20;/h(H,21,22);/q;+1/p-1
21049-36-5Relevant articles and documents
Production process of fluorine-containing carboxylic acid
-
Paragraph 0043-0044, (2020/07/13)
The invention discloses a production process of fluorine-containing carboxylic acid. The method comprises the following steps: by taking fluorine-containing olefin as a raw material, carrying out an oxidation reaction to obtain fluorine-containing carboxylate, reacting the fluorine-containing carboxylate with an acylating chlorination reagent to obtain a corresponding mixture of fluorine-containing acyl chloride and fluorine-containing acid anhydride, and hydrolyzing and drying the mixture of fluorine-containing acyl chloride and fluorine-containing acid anhydride to prepare the high-purity fluorine-containing carboxylic acid. The method provided by the invention is suitable for post-treatment of fluorine-containing carboxylic acid prepared by a fluorine-containing olefin (monoolefine, diene, cycloolefin and the like) oxidation method, replaces the traditional strong acid acidification and ether continuous extraction process, and is simpler, more convenient and more applicable; the purity of the fluorine-containing carboxylic acid prepared by the method can reach 98% or above.
