18872-50-9 Usage
General Description
Phosphoric acid, di-2-naphthalenyl phenyl ester is a chemical compound commonly used as a flame retardant in plastics and as a plasticizer in polyvinyl chloride (PVC) products. It is also used in the production of synthetic resins, adhesives, and coatings. Phosphoric acid,di-2-naphthalenyl phenyl ester has a high thermal stability and is effective at reducing the flammability of various materials, making it suitable for use in a wide range of applications where fire safety is a concern. However, it is important to handle this chemical with caution as it can be harmful if ingested, inhaled, or comes into contact with the skin or eyes.
Check Digit Verification of cas no
The CAS Registry Mumber 18872-50-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,8,7 and 2 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 18872-50:
(7*1)+(6*8)+(5*8)+(4*7)+(3*2)+(2*5)+(1*0)=139
139 % 10 = 9
So 18872-50-9 is a valid CAS Registry Number.
18872-50-9Relevant articles and documents
PROCESS FOR PREPARATION OF PHOSPHORIC ESTERS
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Page 7-8, (2010/11/30)
A process for preparing a phosphoric ester, comprising: Step (1) of reacting naphthol with phosphorus oxychloride in a molar ratio of 1:1.3 or more in the presence of a metallic halide and removing unreacted phosphorus oxychloride and Step (2) of reacting the reaction product of Step (1) with phenol in a molar ratio (molar ratio of chlorine contained in the reaction product to phenol) of 1:1-1.5 and removing hydrogen chloride produced as a by-product to thereby obtain a phosphoric ester represented by the general formula (I): wherein n is 1 or 2.
