Dioctyl phthalate (Dioctyl phthalate)

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Dioctyl phthalate

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BEHP
DEHP
1,2-Benzenedicarboxylic acid, bis(2-ethylhexyl) ester
Di(2-ethylhexyl) Phthalate
Dioctyl Phthalate
DOP
daf68
Octoil
di-sec
Bis(2-ethylhexyl) phthalate
NLA-20
bis(2-Ethylhexyl)phthalate
2-ethylhexylphthalate
Di(2-ethylhexyl)phthalate
Di(2-ethyl hexyl) phthalate (DEHP)
Bis(2-ethylhexyl) Phthalate
Behp
Diethylhexyl phthalate
mollano
DEHP
Plastic additive 01
Dioctyl Phthalate (DOP)
Fleximel

+Expand -Stow

117-81-7

C24H38O4

390.556

2917330000

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Nature Description

Colorless transparent liquid with special smell. Melting Point-55 ℃, boiling point 386.9 ℃,222-230 ℃(0.53kPa), relative density 0.986(20/4 ℃), refractive index 1.4852, flash point 217 ℃, burning point 241 ℃, viscosity 81.4mPa · s, vapor pressure (200℃)176PA. At 25℃, the solubility of this product in water is less than 0.01, and the solubility of water in this product is 0.2. Soluble in most organic solvents and hydrocarbons, slightly soluble in glycerol and ethylene glycol. It has good compatibility with most industrial resin. It is partially compatible with cellulose acetate and polyvinyl acetate. This product is the most widely used plasticizer with the largest yield and the most important variety of Phthalate Plasticizer. The second is dibutyl phthalate (DB

0.981

384oC

-50oC

199oC

可忽略

1.485-1.487

可忽略

Product Applications

It can be used as a substitute for DOP, especially in plasticating paste with good viscosity stability; Used as cold-resistant plasticizer; Used as gas chromatography fixing agent and plasticizer; Used as the main plasticizer of plastics, widely used in polyvinyl chloride products; this product is the most widely used plasticizer, except cellulose acetate,..

Production method

The amount of plasticizer is very large and there are many varieties. At present, the development trend of plasticizer production technology, on the one hand, is the continuous mass production of main plasticizer, on the other hand, is the variety of special plasticizer; Batch production in small batches. The consumption of phthalic acid ester plasticizer accounts for about 80 of the total plasticizer, and the production is very large, so continuous large-scale production centered on dioctyl phthalate appears. In industry, phthalates are made by using phthalic anhydride and corresponding alcohol in sulfuric acid; The acid catalysts such as P-toluenesulfonic acid are made by transesterification, and the amount of acid catalyst is generally 0.2-0.5 based on phthalic anhydride. Phthalic anhydride and 2-Ethylhexanol (iso-octyl alcohol) are used for the transesterification reaction under the catalysis of non-acidic catalysts such as sulfuric acid or titanate, stannous oxide and aluminate. The transesterification solution is neutralized, washed with water, dealcoholized, decolorized, the finished product is filtered. Raw material consumption quota: phthalic anhydride 383kg/t, 2-Ethylhexanol (95)671kg/t, sulfuric acid 6kg/t, soda ash 10kg/t.

Security

Dangerous Goods Marking： T

Safety instructions： S45: If you have an accident or feel uncomfortable, go to the doctor for help immediately (it is better to bring the product container label). S53: Avoid exposure-read the special instructions before using.