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Phthalic anhydride

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Products Intro: Product Name:Phthalic anhydride
CAS:85-44-9
Purity:99% Package:1kg,5kg,25kg
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Products Intro: Product Name:Phthalic anhydride
CAS:85-44-9
Purity:98%(Min,HPLC) Package:100g;1kg;5kg,10kg,25kg,50kg
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CAS:85-44-9
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Products Intro: Product Name:Phthalic anhydride
CAS:85-44-9
Purity:98+% Package:25g;50g;100g;500g;1kg;10kg;50kg
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Products Intro: Product Name:Phthalic anhydride
CAS:85-44-9
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Lastest Price from Phthalic anhydride manufacturers

  • Phthalic anhydride
  • US $2.00 / kg
  • 2018-12-26
  • CAS:85-44-9
  • Min. Order: 1kg
  • Purity: 99%
  • Supply Ability: 100kg
Phthalic anhydride Basic information
Product Name:Phthalic anhydride
Synonyms:wiltrolp;O-PHTHALIC ANHYDRIDE;PHTHALANDIONE;PHTHALIC ACID ANHYDRIDE;PHTHALIC ANHYDRIDE;2,5-Isobenzofurandione;Phthalic anhydride 99+ %;PTHALIC ANHUDRIDE
CAS:85-44-9
MF:C8H4O3
MW:148.12
EINECS:201-607-5
Product Categories:pharmacetical;ACS GradeOrganic Building Blocks;Carbonyl Compounds;Carboxylic Acid Anhydrides;Essential Chemicals;Routine Reagents;Organic Building Blocks;Building Blocks;Carbonyl Compounds;Carboxylic Acid Anhydrides;Chemical Synthesis;Organic Building Blocks
Mol File:85-44-9.mol
Phthalic anhydride Structure
Phthalic anhydride Chemical Properties
Melting point 131-134 °C(lit.)
Boiling point 284 °C(lit.)
density 1,53 g/cm3
vapor density 5.1 (vs air)
vapor pressure <0.01 mm Hg ( 20 °C)
refractive index 1.4500 (estimate)
Fp 152 °C
storage temp. Store at RT.
solubility 6g/l (slow decomposition)
form Flaky Crystals
color White
PH2 (6g/l, H2O, 20℃)
explosive limit1.7-10.5%(V)
Water Solubility 6 g/L (20 ºC)
Sensitive Moisture Sensitive
Merck 14,7372
BRN 118515
Stability:Stable. Combustible. Incompatible with strong oxidizing agents, strong bases, moisture, strong acids. Dust may form an explosive mixture with air.
CAS DataBase Reference85-44-9(CAS DataBase Reference)
NIST Chemistry ReferencePhthalic anhydride(85-44-9)
EPA Substance Registry System1,3-Isobenzofurandione(85-44-9)
Safety Information
Hazard Codes Xn
Risk Statements 22-37/38-41-42/43
Safety Statements 23-24/25-26-37/39-46-22
RIDADR 2214
WGK Germany 1
RTECS TI3150000
10-21
Autoignition Temperature580 °C
TSCA Yes
HazardClass 8
PackingGroup III
HS Code 29173500
Hazardous Substances Data85-44-9(Hazardous Substances Data)
MSDS Information
ProviderLanguage
SigmaAldrich English
ACROS English
ALFA English
Phthalic anhydride Usage And Synthesis
Chemical Propertieswhite crystalline solid with choking odour
Chemical PropertiesPhthalic Anhydride is moderately flammable, white solid (flake) or a clear, colorless, mobile liquid (molten) Characteristic, acrid, choking odor
UsesPhthalic 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 as potential antibacterial agent.
DefinitionChEBI: The cyclic dicarboxylic anhydride that is the anhydride of phthalic acid.
Usesmanufacture of phthaleins, phthalates, benzoic acid, synthetic indigo, artificial resins (glyptal).
General DescriptionA colorless to white lustrous solid in the form of needles with a mild distinctive odor. Moderately toxic by inhalation or ingestion and a skin irritant. Melting point 64°F Flash point 305°F. Forms a corrosive solution when mixed with water. Used in the manufacture of materials such as artificial resins.
Air & Water ReactionsReacts, usually slowly with water to form phthalic acid and heat [Merck 11th ed. 1989]. The phthalic acid is somewhat soluble in water.
Reactivity ProfilePhthalic 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. 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 temperatures [Park, Chang-Man, Richard J. Sheehan. hthalic 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 [eaflet No. 5, Inst. of Chem., London, 1940].
Health HazardSolid irritates skin and eyes, causing coughing and sneezing. Liquid causes severe thermal burns.
Fire HazardCombustible material: may burn but does not ignite readily. Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.
Contact allergensPhthalic anhydride is used in the manufacture of unsaturated polyesters and as a curing agent for epoxy resins. When used as a pigment, it can be responsible for sensitization in ceramic workers. Phthalic anhydride per se is not responsible for the sensitization to the resin used in nail varnishes phthalic anhydride/trimellitic anhydride/ glycols copolymer.
Safety ProfilePoison by ingestion. Experimental teratogenic effects. A corrosive eye, skin , and mucous membrane irritant. A common air contaminant. Combustible when exposed to heat or flame; can react with oxidzing materials. Moderate explosion hazard in the form of dust when exposed to flame. The production of ths material has caused many industrial explosions. Mixtures with copper oxide or sodium nitrite explode when heated. Violent reaction with nitric acid + sulfuric acid above 80℃. To fight fire, use CO2, dry chemical. Used in plasticizers, polyester resins, and alkyd resins, dyes, and drugs. See also ANHYDRIDES.
Potential ExposurePhthalic anhydride is used in plasticizers; in the manufacture of phthaleins; benzoic acid; alkyd and polyester resins; synthetic indigo; and phthalic acid;which is used as a plasticizer for vinyl resins. To a lesser extent, it is used in the production of alizarin, dye, anthranilic acid; anthraquinone, diethyl phthalate; dimethyl phthalate; erythrosine, isophthalic acid; methylaniline, phenolphthalein, phthalamide, sulfathalidine, and terephthalic acid. It has also found uses as a pesticide intermediate.
First aidIf this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. If victim is conscious, administer water, or milk. Do not induce vomiting.
ShippingUN2214 Phthalic anhydride with>.05 % maleic anhydride, Hazard class: 8; Labels: 8-Corrosive material.
Purification MethodsDistil the anhydride under reduced pressure. Purify it from the acid by extracting with hot CHCl3, filtering and evaporating. The residue is crystallised from CHCl3, CCl4 or *benzene, or sublimed. Fractionally crystallise it from its melt. Dry it under vacuum at 100o. [Saltiel J Am Chem Soc 108 2674 1986, Beilstein 17/11 V 253.]
IncompatibilitiesDust forms an explosive mixture with air. 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. Converted to phthalic acid in hot water. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. caustics, ammonia, amines, water. Reacts violently with copper oxide or sodium nitrite 1 heat.
Waste DisposalUse a licensed professional waste disposal service to dispose of this material. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.
Tag:Phthalic anhydride(85-44-9) Related Product Information
cis-1,2,3,6-Tetrahydrophthalic anhydride Phthalic anhydride Dibutyl phthalate Potassium phthalimide 3-Nitrophthalic anhydride Maleic anhydride Phthalonitrile Acetic anhydride O-Phthalimide Phthalic acid PHTHALAMIDE phthalic anhydride 4-carbonyl chloride Pyromellitic Dianhydride 3,3',4,4'-Benzophenonetetracarboxylic dianhydride Trimellitic Anhydride Hexahydrophthalic anhydride Tetrachlorophthalic anhydride 5-Fluoro-1,3-isobenzofurandione