Diethyl phthalate CAS#84-66-2
CAS Number: 84-66-2
Chemical Formula: C12H14O4
Synonyms:
diethyl1,2-benzenedicarboxylate
Diethyl-1,2-benzenedicarboxylate
Diethyl ester of 1,2-Benzenedicarboxylic acid
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Appearance: Transperant Liquid
Diethyl phthalate CAS#84-66-2
Diethyl phthalate (DEP) is a member of the group of esters of phthalic acid known as phthalates, used ubiquitously as solvents and plasticisers worldwide. DEP can increases the flexibility of plastics. It is also contained in deodorant formulations, perfumes, emollients and insect repellents. It can cross react with dimethyl phtalate. Diethyl phthalate is a clear, colorless, oily liquid. It is practically odorless, or with a very slight aromatic odor and a bitter, disagreeable taste. It is miscible with ethanol and ethyl ether. Diethyl phthalate is soluble in acetone, benzene, carbon tetrachloride, alcohols, ketones, esters, and aromatic hydrocarbons and partly miscible with aliphatic solvents. Diethyl phthalate, when exposed to heat, decomposes and emits acrid smoke and irritating fumes. It is incompatible with strong oxidisers, strong acids, nitric acid, permanganates, and water and attacks some forms of plastics. Diethyl phthalate is produced in the reaction of phthalic anhydride with ethanol in the presence of concentrated sulphuric acid catalyst.
Diethyl phthalate Chemical Properties |
Melting point | -3 °C (lit.) |
Boiling point | 298-299 °C (lit.) |
density | 1.12 g/mL at 25 °C (lit.) |
vapor density | 7.66 (vs air) |
vapor pressure | 1 mm Hg ( 100 °C) |
refractive index | n |
Fp | >230 °F |
storage temp. | 2-8°C |
solubility | Practically insoluble in water, miscible with ethanol (96 per cent). |
form | Liquid |
Specific Gravity | 1.118 |
color | APHA: ≤15 |
Odor | water-wh. oily liq., odorless, bitter taste |
PH | 7-8 (20°C in H2O) |
biological source | synthetic |
explosive limit | 0.75%, 187°F |
Water Solubility | 1 g/L (20 ºC) |
Merck | 14,7371 |
BRN | 1912500 |
Henry's Law Constant | At 25 °C: 5.01, 4.54, 4.78, 4.94, 2.21, and 2.44 (x 10-5 atm?m3/mol)at pH values of 2.96, 2.98, 6.18, 6.19, 8.98, and 9.00, respectively (Hakuta et al., 1977). |
Dielectric constant | 7.1(45℃) |
Exposure limits | TLV-TWA air 5 mg/m3 (ACGIH). . |
Stability: | Stable. Combustible. Incompatible with strong oxidizing agents, strong acids, alkalies. |
Cosmetics Ingredients Functions | FRAGRANCE |
LogP | 2.2 at 41℃ |
Surface tension | 36.93 mN/m at 24° |
Surface tension | 36.93 mN/m at 297.15K |
CAS DataBase Reference | 84-66-2(CAS DataBase Reference) |
NIST Chemistry Reference | Diethyl phthalate(84-66-2) |
EPA Substance Registry System | Diethyl phthalate (84-66-2) |
Safety Information |
Safety Statements | 24/25 |
RIDADR | UN 3082 9 / PGIII |
OEB | B |
OEL | TWA: 5 mg/m3 |
WGK Germany | 2 |
RTECS | TI1050000 |
Autoignition Temperature | 854 °F |
TSCA | TSCA listed |
HazardClass | 9 |
HS Code | 29173400 |
Hazardous Substances Data | 84-66-2(Hazardous Substances Data) |
Toxicity | LD50 i.p. in rats: 5.06 ml/kg (Singh) |
Product Application of Diethyl phthalate CAS#84-66-2
Diethyl phthalate is an intermediate of the rodenticides dimouse, murine, and chlorpyrone, and is also an important solvent. Diethyl phthalate is used as a plasticizer for plastics. Diethyl phthalate is used as an analytical reagent, a gas chromatography stationary solution, a solvent for cellulose and esters, a plasticizer and a lubricant. Diethyl phthalate is used as plasticizer, solvent, lubricant, fixative, foaming agent for colored or rare metal mine flotation, gas chromatography fixative, alcohol denaturant, spray insecticide. This product is mixed with cellulose acetate, cellulose acetate butyrate, polyvinyl acetate, nitrocellulose, ethyl cellulose, polymethyl methacrylate, polystyrene, polyvinyl butyral, vinyl chloride-vinyl acetate Most resins such as copolymers have good compatibility. It is mainly used as a plasticizer for cellulose resin, but the product has high volatility, which limits its wide application.
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