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Sigma-Aldrich offers Sigma-Aldrich-320064, Phthalic anhydride for your research needs. Find product specific information including uses, price, CAS, MSDS, protocols and references. ADVANCED SEARCH
Other solubilities: soluble in alcohol and carbon disulfide, slightly soluble in ether, 7.5% in benzene (25°C), forms phthalic acid in water Formula Weight 148.12
Phthalic anhydride is widely used worldwide for an extremely broad range of applications spanning from the plastics industry to the synthesis of resins, agricultural fungicides and amines. Its production is currently based on the vapor phase oxidation of o-xylene and naphthalene.
Global Phthalic Anhydride Market Information: by application (plasticizers, unsaturated polyester resins, alkyd resins, flame retardant, dyes & pigments), end-use industry (automotive, electrical and electronics, construction), and region- Forecast till 2023. Phthalic anhydride is an organic compound known by the molecular formula C6H4(CO)2O.
Phthalic anhydride is used to make polymeric resins called alkyd resins, which are used as coatings, especially for appliances and automobiles. The para isomer, terephthalic acid, is also used to make polymers—namely, polyesters ( see below Derivatives of carboxylic acids: Carboxylic esters).
Phthalic anhydride news and market information products from ICIS. We offer the following regional Phthalic anhydride analysis and news coverage to keep you informed of factors and developments affecting prices in the Asia Phthalic anhydride marketplace.. Price reporting
Feb 21, 2016· The yield of phthalic anhydride is about 90 to 95 % of the theoretical amount, the product being chemically pure if the oxidation temperature is maintained at the correct point and the throughput is not too high. If too much naphthalene is put through per unit of time, the product becomes yellowish due to admixed 1,4-naphthoquinone. The product is removed from time to time by drawing out the …
Feb 21, 2016· Preparation of phthalic anhydride. The catalytic oxidation of naphthalene can easily be carried out in the laboratory. It is of great importance that the correct temperature be maintained and that a suitable catalyst be used. Special attention must be given to the apparatus if the preparation in the laboratory is to succeed.
Phthalic anhydride is a versatile intermediate in organic chemistry, in part because it is bi functional and cheaply available. It undergoes hydrolysis and alcoholysis. Hydrolysis by hot water forms ortho-phthalic acid. This process is reversible: Phthalic anhydride reforms upon heating the acid above 180 °C.
Phthalic anhydride (P.A.) is the cornerstone of Stepan's vertically integrated Polymers division. The phthalic anhydride plant is an integral part of the ISO 9001:2015 Stepan Millsdale site, located in Elwood, Illinois. P.A. is manufactured at this site to supply the internal requirements of the STEPANPOL® polyester polyols product line.
Phthalic anhydride is a direct but delayed irritant of the skin. It is more severely irritating in the presence of water, due to the pronounced effects of the phthalic acid which is formed. Prolonged or repeated exposure also may cause dermatitis. (Ref. 5.5.) The ACGIH assigned a TLV-TWA of 1 ppm for phthalic anhydride (Ref. 5.6.). There is no STEL.
Phthalic anhydride is an organic compound, the anhydride of phthalic acid. It is an important industrial chemical used in the production of plasticizers, dyestuffs, and pharmaceuticals. It is an important industrial chemical used in the production of plasticizers, dyestuffs, and pharmaceuticals.
Phthalic anhydride is a white (lustrous needles) solid that is slightly soluble in water. (6,8) Phthalic anhydride has an odor threshold of 0.053 parts per million (ppm). (7) The chemical formula for phthalic anhydride is CH O, and it has a molecular weight of 148.12 g/mol.
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PHTHALIC ANHYDRIDE reacts exothermically with water. The reactions are sometimes slow, but can become violent when local heating accelerates their rate. Acids accelerate the reaction with water. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases.
Phthalic Anhydride (PA) is used as the major ingredient in the manufacture of plasticizers, unsaturated polyester resin, paint and others. Our PA Plant is a manufacturing plant which opened for the first time in the Republic of Korea. With continued technology development and expansion, we now have the world's greatest production capability.
C p,solid: Constant pressure heat capacity of solid: S° solid,1 bar Entropy of solid at standard conditions (1 bar) Δ c H° solid: Enthalpy of combustion of solid at standard conditions
"Phthalic Acids and Other Benzenepolycarboxylic Acids" Kirk-Othmer Encyclopedia of Chemical Technology. John Wiley & Sons, Inc. 2005]. Mixtures of phthalic anhydride and anhydrous CO2 explode violently if heated [Leaflet No. 5, Inst. of Chem., London, 1940].
Phthalic anhydride definition is - a crystalline cyclic acid anhydride C8H4O3 used especially in making alkyd resins.
Phthalic Anhydride (a.k.a. PHTAN) is the anhydride of phthalic acid. It appears as a colorless or white solid in the form of needles and it has a characteristic odor. It is toxic if inhaled and it is a skin irritant. When mixed with water, if forms a corrosive solution.
Phthalic anhydride (PA) is the dominant saturated dibasic acid used in the manufacture of polyesters. Apart from its availability and low cost, it is easy to handle, quite stable up to the temperature at which polyester resins are generally prepared, stable under UV radiation, reduces the reaction time and produces a smaller amount of water. 4 The next most widely used saturated dibasic acid is isophthalic …
This page contains information on the chemical Phthalic anhydride including: 71 synonyms/identifiers; U.S. Code of Federal Regulations Title 49 Section 172 shipping regulations and proper shipping name; USDOT 2008 Emergency Response Guidebook initial response information.
The ICIS Phthalic anhydride reports will keep you informed and up-to-date with market movements in Asia, Europe and the US. Our network of locally-based reporters publish weekly price assessments for spot and contract, depending on the region. Market news and analysis includes an overview, regional .
MATERIAL SAFETY DATA SHEET SDS / MSDS Product Name: PHTHALIC ANHYDRIDE Revision Date : 03.06.2019 Page 1 of 6 1. Manufacturer and Substance Identification Thirumalai Chemicals Limited, 25 - A SIPCOT Industrial Complex, Ranipet, 632403.Tamil Nadu, India.
Synonyms : Phthalic Acid Anhydride, 1,3-Isobenxofurandione, 1,2 Benzene Carboxylic Acid Anhydride Identified uses : Used as monomer for polymer production, Laboratory chemical and
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Phthalic Anhydride Only North American producer capable of using multiple feedstocks, both orthoxylene and internally produced naphthalene. Phthalic anhydride is available in both flake and liquid molten form. Knowledgeable, experienced technical assistance. Professional logistics support.
Phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(CO2H)2. It is an isomer of isophthalic acid and terephthalic acid. Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale.
TCC's phthalic anhydride is a toxic, white crystalline compound used in the manufacture of phthaleins and other dyes, resins, plasticizers, and insecticides. Phthalic anhydride is the anhydride of phthalic acid. This colorless solid is an important industrial chemical, especially for the large–scale production of plasticizers for plastics.