20544-37-0

Usage

Flammability and Explosibility

Notclassified

InChI:InChI=1/C19H22O6P2/c20-26(11-17-7-3-1-4-8-17)22-13-19(14-23-26)15-24-27(21,25-16-19)12-18-9-5-2-6-10-18/h1-10H,11-16H2

Upstream product

• 100-39-0 benzyl bromide 
• 115-77-5 Pentaerythritol 
• 100-51-6 benzyl alcohol 

Relevant academic research and scientific papers

ORGANIC PHOSPHORUS-BASED COMPOUND, AND FLAME RETARDANT AND FLAME-RETARDANT PRODUCT COMPRISING THE SAME

An organic phosphorus-based compound which satisfies the following requirements (i) to (viii) and is represented by the following formula (1): (i) the organic purity should be not lower than 98%; (ii) the solubility in 20° C. water should be not higher th

ORGANIC PHOSPHOROUS COMPOUND, FIRE RETARDANT, AND FIRE RETARDANT RESIN COMPOSITION

PROBLEM TO BE SOLVED: To provide a non-halogen-based fire retardant for obtaining a fire retardant product having high level fire retardancy and good appearance, and a fire retardant resin composition using the same. SOLUTION: There is provided a ground p

Flame retardant synthetic leather

Flame retardant synthetic leather having high flame retardancy and excellent physical properties (light resistance, heat resistance and feeling). The flame retardant synthetic leather contains an organic phosphorus compound (component A) represented by th

ORGANIC PHOSPHORUS COMPOUND, FLAME RETARDANT AND FLAME RETARDANT PRODUCT CONTAINING THE SAME

PROBLEM TO BE SOLVED: To provide a non-halogen-based flame retardant for providing a flame retardant product having high level flame retardancy and good appearance and the flame retardant product using the same. SOLUTION: There is provided an organic phosphorus compound represented by a formula (1) satisfying following conditions (i) to (vii). (i) organic purity is 98% or more. (ii) solubility to water is 0.1 g/100 g water or less. (iii) total contained halogen component is 1000 ppm or less. (iv) total volatile organic product content is 800 ppm or less. (v) ΔpH value is 1.0 or less. (vi) volume based median diameter is 30 μm or less. (vii) maximum particle diameter is 200 μm or less. (1), where R2 and R5 are each independently a substituted/unsubstituted phenyl group, a naphthyl group, an anthryl group or a C1 to 4 branched or linear alkyl group which may have an aromatic substituent, R1, R3, R4 and R6 are each independently H, C1 to 4 branched or linear alkyl group, the substituted/unsubstituted phenyl group, the naphthyl group or the like. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT

PROCESS FOR THE PRODUCTION OF PENTAERYTHRITOL DIPHOSPHONATES

A process for producing a pentaerythritol diphosphonate represented by the formula (5) characterized by (A) reacting phosphorus trichloride with pentaerythritol in the presence of an inert solvent to obtain pentaerythritol dichlorophosphite (reaction (a)), (B) reacting the pentaerythritol dichlorophosphite with an aralkyl alcohol to obtain a pentaerythritol diphosphite (reaction (b)), and (C) heat-treating the pentaerythritol diphosphite in the presence of a halogenated compound on the condition of a temperature of from 80 to 300°C (reaction (c)): wherein Ar1 and Ar2, which may be the same as or different from each other, each represents a substituted or unsubstituted aryl group having from 6 to 20 carbon atoms, and R3, R4, R5 and R 6 which may be the same as or different from each other, each represents a hydrogen atom, a substituted or unsubstituted aryl group having from 6 to 20 carbon atoms, or a saturated or unsaturated hydrocarbon group having from 1 to 20 carbon atoms. According to the production process of the invention, a particular pentaerythritol diphosphonate capable of being utilized as a fire retarding agent and the like can be provided with high purity and high yield by an industrially advantageous process excellent in productivity.