phthalic anhydride acid value

    Classification/MAK value: not yet established phthalic .

    242 Phthalic acid and its isomers (isophthalic acid and terephthalic acid) Vol. 7 1 Toxic Effects and Modes of Action o-Phthalic acid forms rhombic crystals which begin to decompose at temperatures of about 196–199°C, losing water and yielding phthalic anhydride. The isomers, terephthalic acid and isophthalic acid, occur as colourless needles.

    SAFETY DATA SHEET - stepan

    Components Type Value Phthalic anhydride (CAS TWA 6 mg/m3 85-44-9) 1 ppm Biological limit values No biological exposure limits noted for the ingredient(s). Explosion-proof general and local exhaust ventilation. Good general ventilation (typically 10 air changes per hour) should be used. Ventilation rates should be matched to conditions.

    Product - Phthalic Anhydride

    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.

    Phthalic anhydride (CAS 85-44-9) - Chemical & Physical .

    Similar Compounds. Find more compounds similar to Phthalic anhydride.. Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more.

    Phthalic anhydride CAS#: 85-44-9 - ChemicalBook

    Description: Phthalic anhydride is the organic compound with the formula C 6 H 4 (CO) 2 O. It is the anhydride of phthalic acid. This colourless solid is an important industrial chemical, especially for the large-scale production of plasticizers for plastics.

    phthalic anhydride acid value,

    Phthalic anhydride - US EPA

    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.

    Sampling and Analytical Methods: Phthalic Anhydride .

    Others have collected phthalic anhydride on glass fiber filters and extracted with dilute aqueous sodium hydroxide (Ref. 5.2.). Because both these methods convert the collected phthalic anhydride to, and analyze as, phthalic acid, they are susceptible to positive interference from any phthalic acid originally present in the air.

    Phthalic Anhydride Latest Prices | Global Price Database

    About Phthalic Anhydride. 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 | 85-44-9

    Phthalic Anhydride is an organic compound and the anhydride of phthalic acid (P384480). Phthalic Anhydride is an important industrial chemical commonly used in large-scale production of plasticizers f or plastics. Recent research have also evaluated Phthalic Anhydride …

    phthalic anhydride | Sigma-Aldrich

    Search results for phthalic anhydride at Sigma-Aldrich. Attention: As we update our core systems, key features of the website including ordering and real-time price and availability, may be unavailable from 8 PM CST on Friday evening, September 20th until 9 AM CST on Saturday morning, September 21st.

    Phthalic Anhydride - an overview | ScienceDirect Topics

    N. Karak, in Vegetable Oil-Based Polymers, 2012. 4.3.3 Polybasic acid. 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 .

    PHTHALIC ANHYDRIDE | CAMEO Chemicals | NOAA

    Undergoes exothmeric nitration with fuming nitric acid-sulfuric acid and may give mixtures of the potentially explosive phthaloyl nitrates or nitrites or their nitro derivatives [Chem. & Ind. 20:790. 1972]. Phthalic anhydride reacts violently with CuO at elevated …

    Phthalic - definition of phthalic by The Free Dictionary

    USPRwire, Wed Apr 13 2016] GlobalData's new report, "Phthalic Anhydride Industry Outlook in Italy to 2019 - Market Size, Company Share, Price Trends, Capacity Forecasts of All Active and Planned Plants", provides in-depth coverage of Italy's Phthalic Anhydride industry and presents major market trends.

    Phthalic anhydride - CDC

    However, the revised IDLH for phthalic anhydride is 60 mg/m 3 (i.e., 10 times the NIOSH REL) based on acute inhalation data in humans [Baader 1955] and an analogy to maleic anhydride [ACGIH 1991] which has a revised IDLH that is 10 times its NIOSH REL.

    Oxidation of ortho-xylene to phthalic anhydride using a .

    phthalic anhydride may be expected if phthalic anhydride were to be produced exclusively from a-xylene. Table I (29) compares the costs of phthalic anhydride produced from naphthalene in both fixed and fluidized beds with that produced from a-xylene in a fixed bed reactor. The advan­ tage of using a-xylene is apparent.

    phthalic anhydride acid value,

    Phthalic acid - Wikipedia

    Phthalic acid is an aromatic dicarboxylic acid, with formula C 6 H 4 (CO 2 H) 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.

    Phthalic acid, reagent grade, 98% | C6H4-1,2-(CO2H)2 .

    Phthalic acid (PA) is the final metabolite of phthalic acid esters (PAEs). Its interaction with well-ordered MgO(100) (magnesium oxide) thin films has been investigated. The efficiency of activated carbon suspended in aqueous medium for the adsorption of PA has been analyzed.

    Phthalic Anhydride Market Research Report –Global Forecast .

    Phthalic acid,Phthalate plasticizers,Non-phthalate plasticizers,Anhydride of phthalic acid,PVC, infomarketresearchfuture +1 628 258 0071(US) +44 2035 002 764(UK) . FIGURE 4 Value Chain of Global Phthalic Anhydride Market FIGURE 5 Share of Global Phthalic Anhydride Market in 2017, by Country FIGURE 6 Global Phthalic Anhydride Market, 2017 .

    phthalic anhydride acid value,

    Phthalic Anhydride Market Size, Trends, Forecast (2019-24)

    Phthalic Anhydride Market - Growth, Trends, and Forecast (2019 – 2024) The market is segmented by Application (Plasticizers, Alkyd Resins, Unsaturated Polyester Resins, and Other Applications), End-user Industry (Automotive, Electrical and Electronics, Paints and Coatings, Plastics, and Other End-user Industries), and Geography.

    PHTHALIC ANHYDRIDE | CAMEO Chemicals | NOAA

    Undergoes exothmeric nitration with fuming nitric acid-sulfuric acid and may give mixtures of the potentially explosive phthaloyl nitrates or nitrites or their nitro derivatives [Chem. & Ind. 20:790. 1972]. Phthalic anhydride reacts violently with CuO at elevated …

    Oxidation of ortho-xylene to phthalic anhydride using a .

    phthalic anhydride may be expected if phthalic anhydride were to be produced exclusively from a-xylene. Table I (29) compares the costs of phthalic anhydride produced from naphthalene in both fixed and fluidized beds with that produced from a-xylene in a fixed bed reactor. The advan­ tage of using a-xylene is apparent.

    Phthalic anhydride | C6H4(CO)2O - PubChem

    Phthalic anhydride | C6H4(CO)2O or C8H4O3 | CID 6811 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological .

    Phthalic Anhydride - The Chemical Company

    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.

    phthalic anhydride acid value,

    Phthalic Anhydride | Technobell Technology

    Phthalic Anhydride is then routed to the switch condensers, which cool further the gases below the Phthalic Anhydride solidification point by use of cold oil. When the condenser starts to be full with solid Phthalic Anhydride, the reaction gas is connected to a spare and clean switch condenser.

    Phthalic anhydride | C8H4O3 | ChemSpider

    Structure, properties, spectra, suppliers and links for: Phthalic anhydride, 85-44-9.

    Phthalic anhydride [MAK Value Documentation, 1996 .

    The impurities present in technical phthalic anhydride, naphthoquinone and maleic anhydride, seem to contribute to these symptoms of systemic poisoning and to the allergic reactions (asthmatiform bronchitis) (Frede 1962, Kern 1939, Oettel 1955). On moist skin, phthalic anhydride is hydrolysed to phthalic acid which causes irritation.

    Sampling and Analytical Methods: Phthalic Anhydride .

    Others have collected phthalic anhydride on glass fiber filters and extracted with dilute aqueous sodium hydroxide (Ref. 5.2.). Because both these methods convert the collected phthalic anhydride to, and analyze as, phthalic acid, they are susceptible to positive interference from any phthalic acid originally present in the air.

    Phthalic acid | Sigma-Aldrich

    Search results for Phthalic acid at Sigma-Aldrich. Attention: As we update our core systems, key features of the website including ordering and real-time price and availability, may be unavailable from 8 PM CST on Friday evening, September 20th until 9 AM CST on Saturday morning, September 21st.

    Phthalic Anhydride Market by Derivatives & Application .

    [178 Pages Report] This Phthalic Anhydride Market research report provides details about the trends and growth prospects for the global phthalic anhydride market, by the end of 2018. The anhydride of phthalic acid is obtained from the oxidation of o-Xylene or Naphthalene.

    Pre:china m 233 xico tmtd
    Next:nano silica powder suppliers in gujrat