Diisononyl Phthalate น้ำมัน DINP

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น้ำมันดีไอเอ็นพี, DINP, Diisononyl Phthalate, ไดไอโซโนนิลพธาเลธ, Plasticizers, พลาสติไซเซอร์, สำหรับอุตสาหกรรมการผลิตต่างๆ 

DINP; Isononyl alcohol phthalate; DINP; Palatinol DN; Palatinol N; 

1,2-Benzenedicarboxylic acid

diisononyl ester; Bis(7-methyloctyl) phthalate; 

Di(C8-C10) branched alkyl phthalate; Di(isononyl) phthalate branched;

Di(C8-10, C9 rich) branched alkyl phthalates; Vestinol 9; Vestinol NN;

Vinylcizer 90; Witamol 150; Other RN: 68515-48-0; 105009-97-0; 41375-91-1;

58033-90-2

Phthalates are by far the most

widely used plasticisers, primarily to make soft and flexible polyvinyl

chloride (PVC) for the applications in the industry of automotive, building

& construction material, cable, flooring, medical device and toys. Phthalates

make the long polyvinyl molecules to slide against one another. Minor quantity

of phthalates are used in adhesives, caulk, sealants, paint to improve work

performance. Small molecule phthalates are used as solvents in perfumes to

provide longer linger longer and in nail polish to prevent chipping. They are

also used as ingredients of insect repellents, as solvents in lacquer and

pesticides, and as dye carrier. They are used as textile lubricating agents and

as solid rocket propellents. Phthalates are produced by the reaction of

phthalic anhydride with appropriate alcohols from methanol up to isodecanol

(C13), either as a straight chain or with some branched in the presence of

concentrated sulphuric acid as a catalyst. Excess alcohols are recovered and

recycled and phthalates are purified by vacuum distillation and/or activated

charcoal. A wide range of phthalates of varying chain length and structure

provides each adequate properties and cost-effective for various processing and

mechanical requirements. C8 - C9 phthalates, such as di-2-ethyl hexyl phthalate

(DEHP or called DOP), diisodecyl phthalate (DIDP) and diisononyl phthalate

(DINP) are the most widely used general purpose phthalates. DOP is the dominant

plasticizer used in PVC, providing low cost. Short chain phthalates (C3 - C7)

are used when rapid setting and stain resistance is required. 2-Ethyl hexanol,

produced by the dimerisation of butyraldehyde obtained from propylene, is

cheaper than isononyl alcohol which are prepared by the carbonylation of an olefin.

Long chain phthalates (C11 - C13) are used when high temperature stability is

required. C1 and C2 phthalates are used as solvents. Special phthalates which

contain aromatic ring in the side chain are used when fast-fused is required.

Diallyl phthalate is used as a crosslinking agent, plasticizer or dying carrier

for polyesters.

Diisononyl phthalate (DINP) is a

phthalate used as a plasticizer in e.g. food contact materials. DINP is

typically a mixture of chemical compounds consisting of various isononyl esters

of phthalic acid.

The European Union has set a

maximum specific migration limit from food contact materials of 9

mg/kg food for the sum of diisononyl phthalates and diisodecyl phthalates.

Di-isononyl phthalate (DINP) is a commonly used plasticiser, 95

per cent of which is used in PVC applications. More than half of the DINP used

in non-PVC applications involves polymer related-uses (e.g. rubbers). The

remaining DINP is used in inks and pigments, adhesives, sealants, paints and

lacquers and lubricants. DINP is a mixture of isomers that have alkyl chains

from 8 to 10 carbons long, but the largest portion of the mixture has chains composed of 9-carbons. There are two different substances attributed to the names 1,2-Benzenedicarboxylic acid, di-C8-10-branched alkyl esters, C9-rich or di-?isononyl? phthalate (DINP). DINP 1 (CAS 68515-48-0) is manufactured by the ?Polygas? process whereas DINP 2 (CAS 28553-12-0) is n-butene

based. Under the EU risk assessment these substances have been considered

equivalent from a health and environmental perspective, and

as such a single EU risk

assessment has been conducted for DINP. DINP is a general, all-purpose

plasticiser.

Heat resistance, low temperature

resistance and volatility resistance are some of its main properties that make

it suitable for a wide range of applications.

Physical-chemical properties

CAS Reg. No:   68515-48-0 and 28553-12-0

(different alcohol chains depending on production method)

EINECS No:      271-090-9 and 249-079-5

Synonyms / IUPAC name:         1,2-Benzenedicarboxylic acid, di-C8-10 branched alkyl esters, C9-rich; Di-isononyl phthalate

Empirical Formula:       C26H42O4 (average)

Structure:        

R1 and R2 (not necessary identical) are either mainly C8H17 to C10H21 or C9H19 isomers. In the case where R1 and R2 is C9H19 isomers, it is 10 % n-nonyl, 35-40 % methyloctyl, 40-45 % dimethylheptyl, 5-10 % methylethylhexyl.

Molecular weight:         420.6 (average)

Melting point:   -40 to -54?C

Boiling point:    424?C

Density:            ca. 0.975 at 20?C

Vapour pressure:         6 x 10-5 Pa at 20?C

Solubility in water:        0.6 ?g/l 20?C

Henry's law constant: 41.4 pa' m3/mol

Log Kow:         8.8

Flash point:      > 200?C

Autoflammability:          ca. 380?C

Viscosity:          100-150 mPa's

Purity:   DINP is a manufactured substance made by esterifying phthalic

anhydride and isononanol. Isononanol is composed of different branched C9 alcohol isomers.

Impurities:        Isononanol ca. 0.04%, isononylbenzoate ca. 0.03%, n-butyl-isononyl phthalate ca. 0.1%, water 0.02-0.03%.

 

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พธาเลตไดไอโซโนนิลพธาเลธphthalatediisononylพลาสติไซเซอร์พทาเลทDINPพทาเลตplasticizerพธาเลท