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Dimethyl terephthalate

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Products Intro: Product Name:Dimethyl Terephthalate
CAS:120-61-6
Purity:98%(Min,HPLC) Package:100g;1kg;5kg,10kg,25kg,50kg
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Products Intro: Product Name:DIMETHYL TEREPHTHALATE
CAS:120-61-6
Purity:99% Package:100g,500g,1KG,10KG,100KG
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Purity:99% Package:500G;1KG;5KG;25KG
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CAS:120-61-6
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Products Intro: Product Name:Dimethyl terephthalate
CAS:120-61-6
Purity:0.99 Package:25kg/drum

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Dimethyl terephthalate Basic information
Product Name:Dimethyl terephthalate
Synonyms:di-meterephthalate;Dimethyl 1,4-benzenedicarboxylate;Dimethyl ester of 1,4-benzenedicarboxylic acid;Dimethyl p-benzenedicarboxylate;dimethyl1,4-benzenedicarboxylate;dimethyl4-phthalate;Dimethylester kyseliny isoftalove;Dimethylester kyseliny tereftalove
CAS:120-61-6
MF:C10H10O4
MW:194.18
EINECS:204-411-8
Product Categories:Color Former & Related Compounds;Functional Materials;Sensitizer;Alpha sort;D;DAlphabetic;DID - DIN;Pesticides&Metabolites;C10 to C11;Carbonyl Compounds;Esters;Aromatics;Isotope Labelled Compounds;Miscellaneous Reagents;-;Carbonyl Compounds;Chemical Synthesis;Organic Building Blocks;ester series;Microscopy Reagents;Various Chemicals;Analytical Reagents;Analytical/Chromatography;Building Blocks;C10 to C11
Mol File:120-61-6.mol
Dimethyl terephthalate Structure
Dimethyl terephthalate Chemical Properties
Melting point 140 °C
Boiling point 288 °C
density 1,29 g/cm3
vapor density 1.04 (vs air)
vapor pressure 1.15 mm Hg ( 93 °C)
refractive index 1.4752
Fp 154 °C
storage temp. Store below +30°C.
solubility water: slightly soluble0.0493g/L at 20°C
form Flakes or Pellets
color White
explosive limit0.8-11.8%(V)
Water Solubility It is slightly soluble in water but soluble in hot alcohol and ether.
Merck 14,9162
BRN 1107185
Stability:Stable. Incompatible with strong acids, strong bases, strong oxidizing agents.
CAS DataBase Reference120-61-6(CAS DataBase Reference)
Safety Information
Risk Statements 36/37/38
Safety Statements 24/25
RIDADR 3256
WGK Germany 1
RTECS WZ1225000
Autoignition Temperature520 °C DIN 51794
TSCA Yes
HS Code 2917 37 00
ToxicityLD50 orally in Rabbit: 3200 mg/kg
MSDS Information
ProviderLanguage
SigmaAldrich English
ACROS English
ALFA English
Dimethyl terephthalate Usage And Synthesis
DescriptionDimethyl terephthalate (DMT) is an organic compound with the formula C6H4(CO2CH3)2. It is the diester formed from terephthalic acid and methanol. It is a white solid that melts to give a distillable colourless liquid.
Chemical Propertieswhite chunks
UsesDMT is used in the production of polyesters, including polyethylene terephthalate (PET) and poly trimethylene terephthalate. It consists of benzene substituted with carboxy methyl groups (CO2CH3) at the 1 and 4 positions. Because DMT is volatile, it is an intermediate in some schemes for the recyclic of PET, e.g. from plastic bottles.
Hydrogenation of DMT affords the diol cyclo hexane dimethanol , which is a useful monomer.
UsesDimethyl terephthalate (DMT) is used in the production of polyesters, including polyethylene terephthalate (PET) and poly trimethylene terephthalate. It consists of benzene substituted with carboxy methyl groups (CO2CH3) at the 1 and 4 positions. Because DMT is volatile, it is an intermediate in some schemes for the recyclic of PET, e.g. from plastic bottles.
Hydrogenation of DMT affords the diol cyclohexanedimethanol, which is a useful monomer.
Production MethodsDimethyl terephthalate (DMT) has been produced in a number of ways. Conventionally and still of commercial value is the direct esterification of terephthalic acid. Alternatively, it can be prepared by alternating oxidation and methyl-esterification steps from p-xylene via methyl-p-toluate.
General DescriptionWhite solid or heated colorless liquid. Has no odor. Liquid solidifies in cool water. Solid and liquid sink in water.
Air & Water ReactionsWhen mixed with air, the vapor or dust forms very hazardous and highly reactive mixtures. . Insoluble in water.
Reactivity ProfileDIMETHYL TEREPHTHALATE is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. Can generate electrostatic charges. [Handling Chemicals Safely 1980. p. 250]. DIMETHYL TEREPHTHALATE is sensitive to heat. The molten material reacts with water due to the temperature. DIMETHYL TEREPHTHALATE is incompatible with strong oxidizers, strong acids and strong bases.
Health HazardMolten DMT will cause severe burns of skin on contact.
Fire HazardDIMETHYL TEREPHTHALATE is combustible.
Safety ProfileModerately toxic by intraperitoneal route. Mdly toxic by ingestion. An eye irritant. Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes
Purification MethodsPurify it by recrystallisation from aqueous EtOH, MeOH or CCl4; or by zone melting. [Beilstein 6 H 843, 6 III 4250, 6 IV 3303.] .
Tag:Dimethyl terephthalate(120-61-6) Related Product Information
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