Tris(dipropylene glycol) phosphite

 

Equivalent to Doverphos 72

 

CAS NO.: 36788-39-3

 

synonym: 

7-[2-(2-hydroxymethylethoxy)methylethoxy]tetramethyl-3,6,8,11-tetraoxa-7-phosphatridecane-1,13-diol;

Tris(dipropyleneglycol) phosphite;

7-[2-(2-hydroxymethylethoxy)methylethoxy]tetramethyl-3,6,8,11-tetraoxa-7-phosphatridecane-1,13-diol;

6,8,11-Tetraoxa-7-phosphatridecane-1,13-diol, 7-[2-(2-hydroxymethylethoxy)methylethoxy] tetramethyl-3

 

Formula: C18H39O9P

 

Molecular Weight: 430

 

Chemical Structure: 

 

Specification:

Item	Standard
Appearance	Clear liquid
Color(APHA)	50
P	7.0%
Acid value(mgKOH/g)	0.2
Relative density(@25℃)	1.46

 

Application for reference:

Tris(dipropylene glycol) phosphite is a liquid phosphite which having a hydroxyl number of about 380 mgKOH/g.

Tris(dipropylene glycol) phosphite can be used as a heat a color stabilizer for some polymers,especially for polyurethanes;

Tris(dipropylene glycol) phosphite can react into the backbone of a polyurethane or polyester due to the hydroxyl functionality;

 

Dosage:

improve the flame retardancy of polyurethane foam:~10%;

Act as color stability agent: 0.2%~0.5%

 

Package and storage: 

250kgs/drum or as customer’s request;

Stock it in dry,cool and well-ventilated place

 

Transportation: 

Tris(dipropylene glycol) phosphite is not dangerous goods according to transportation regulation

 

Shelf life: 2 years as above storage condition