84-69-5 Usage
Description
Diisobutyl phthalate is a colorless, oily liquid with a slight ester odor. It is denser than water and insoluble in water. It is a phthalate ester that is the diester obtained by the formal condensation of the carboxy groups of phthalic acid with two molecules of isobutanol. It is used as a substitute for dibutyl phthalate and has low toxicity. However, it has been found to have genotoxic effects and studies have shown an increase in its monoester metabolite in human urine over the years.
Uses
Used in Plastic Industry:
Diisobutyl phthalate is used as a plasticizer in the plastic industry to increase the flexibility and workability of plastics. It is used as a substitute for dibutyl phthalate due to its similar properties.
Used in Cosmetics Industry:
Diisobutyl phthalate is used as a solvent and fixative in cosmetics, such as perfumes and fragrances, to help dissolve and stabilize the active ingredients and extend their shelf life.
Used in Medical Devices:
Diisobutyl phthalate is used in the production of some medical devices, such as blood bags and tubing, to make the plastic more flexible and durable.
Used in Consumer Products:
Diisobutyl phthalate is used in the production of various consumer products, such as toys, vinyl flooring, and automotive interiors, to enhance their flexibility and durability.
Production Methods
Diisobutyl phthalate is manufactured by esterifying phthalic
anhydride and isobutanol in the presence of sulfuric acid.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Diisobutyl phthalate reacts with acids to liberate heat along with isobutyl alcohol and phthalic acid. May react sufficiently exothermically with strong oxidizing acids to ignite the reaction products. Heat is also generated by interaction with caustic solutions. Flammable hydrogen is generated by mixing with alkali metals and hydrides. Can generate electrostatic charges in handling [Handling Chemicals Safely, 1980. p. 250].
Health Hazard
Vapors from very hot material may irritate eyes and produce headache, drowsiness, and convulsions.
Fire Hazard
Diisobutyl phthalate is combustible.
Safety Profile
Moderately toxic by
intraperitoneal route. Mdly toxic by
ingestion and skin contact. Experimental
teratogenic and reproductive effects.
Combustible when exposed to heat or
flame. To fight fire, use foam, CO2, dry
chemical. When heated to decomposition it
emits acrid smoke and fumes.
Check Digit Verification of cas no
The CAS Registry Mumber 84-69-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 84-69:
(4*8)+(3*4)+(2*6)+(1*9)=65
65 % 10 = 5
So 84-69-5 is a valid CAS Registry Number.
InChI:InChI=1/C16H22O4/c1-9(2)7-11-5-6-12(15(17)18)14(16(19)20)13(11)8-10(3)4/h5-6,9-10H,7-8H2,1-4H3,(H,17,18)(H,19,20)/p-2
84-69-5Relevant articles and documents
Method for catalyzing esterification reaction of low-carbon alcohol by using ionic liquid
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Paragraph 0033-0040, (2021/07/24)
The invention discloses a method for catalyzing low-carbon alcohol esterification reaction by ionic liquid, which comprises the following steps: mixing dianhydride or diacid, fatty alcohol and ionic liquid, heating to 100-160 DEG C by microwave, and reacting for 0.5-2 hours to obtain diester; wherein the ionic liquid is [Ps2TMEDA] [HSO4] 2 and/or [Ps2BPy] [HSO4] 2, the molar ratio of the ionic liquid to the dianhydride or diacid is 0.005-0.04, and the molar ratio of the dianhydride or diacid to the fatty alcohol is 1-5. The method is simple in process, mild in condition, convenient to operate, environment-friendly, high in double esterification degree, high in ionic liquid activity and easy to separate.
Method for preparing diisobutyl phthalate
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Paragraph 0052-0082, (2019/10/23)
The invention discloses a method for preparing diisobutyl phthalate. The method comprises the following steps: 1, preparing a magnetic nanoparticle-supported acidic ionic liquid used as a catalyst; and 2, preparing the diisobutyl phthalate: carrying out refluxing dehydration condensation on phthalic anhydride and isobutanol under the catalysis of the magnetic nanoparticle-supported acidic ionic liquid for 3-6 h to obtain a diisobutyl phthalate reaction solution, cooling the reaction solution to room temperature, filtering the cooled reaction solution, adsorbing the obtained filtrate I by a solid alkali, performing filtration to obtain a filtrate II and a filter cake respectively, and carrying out reduced pressure dealcoholysis on the filtrate II to obtain the diisobutyl phthalate. The magnetic nanoparticle-supported acidic ionic liquid is used as the catalyst to achieve catalytic synthesis of the diisobutyl phthalate, so the method has the characteristics of high catalysis efficiency,easiness in recovery and reuse of the catalyst, simple process and less waste water discharge.
Preparation method of diisobutyl phthalate
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Paragraph 0016; 0017; 0018, (2016/12/01)
The invention discloses a preparation method of diisobutyl phthalate. The method comprises the following steps: 1, early stage preparation; 2, esterification reaction; 3, neutralization reaction; 4, dealcoholysis and decolorizing reaction; and 5, press filtration and packaging. In the above technical scheme, phthalic anhydride and isobutanol undergo a reaction with concentrated sulfuric acid as a catalyst to synthesize the diisobutyl phthalate plasticizer. The method has the advantages of simple and controllable process, high reaction efficiency, no byproducts, high output, good economic benefit, short reaction cycle, mild reaction conditions, good industrial application values, satisfactory recycling of wastewater and waste residues, and raw material saving.