Phthalsure Produkt Beschreibung

Phthalic acid Struktur
88-99-3
  • CAS-Nr.88-99-3
  • Bezeichnung:Phthalsure
  • Englisch Name:Phthalic acid
  • Synonyma:Phthalsure;1,2-Benzoldicarbonsäure<BR>o-Phthalsäure
    NSC 5348;Phthalsure;Sunftal 20;THALIC ACID;AURORA 15195;PATHALIC ACID;PHTHALIC ACID;acidephtalique;Acide phtalique;kyselinaftalova
  • CBNumber:CB6289456
  • Summenformel:C8H6O4
  • Molgewicht:166.13
  • MOL-Datei:88-99-3.mol
Phthalsure physikalisch-chemischer Eigenschaften
  • Schmelzpunkt: :210-211 °C (dec.)(lit.)
  • Siedepunkt: :214.32°C (rough estimate)
  • Dichte :1.593
  • Dampfdruck :7.8 hPa (191 °C)
  • Brechungsindex :1.5100 (estimate)
  • Flammpunkt: :168 °C
  • storage temp.  :Store below +30°C.
  • Löslichkeit :methanol: 0.1 g/mL, clear
  • pka :2.89(at 25℃)
  • Aggregatzustand :Powder
  • Farbe :White
  • PH :2 (5g/l, H2O, 20℃)
  • Wasserlöslichkeit :7 g/L (25 ºC)
  • Merck  :14,7371
  • BRN  :608199
  • Stabilität: :Stable. Combustible. Incompatible with strong oxidizing agents.
  • CAS Datenbank :88-99-3(CAS DataBase Reference)
  • NIST chemische Informationen :1,2-Benzenedicarboxylic acid(88-99-3)
  • EPA chemische Informationen :1,2-Benzenedicarboxylic acid(88-99-3)
Sicherheit

Phthalic acid Chemische Eigenschaften,Einsatz,Produktion Methoden

  • ERSCHEINUNGSBILD KRISTALLINES PULVER
  • PHYSIKALISCHE GEFAHREN Staubexplosion der pulverisierten oder granulierten Substanz in Gemischen mit Luft möglich.
  • CHEMISCHE GEFAHREN Schwache Säure in wässriger Lösung.
  • ARBEITSPLATZGRENZWERTE TLV nicht festgelegt.
    MAK: IIb (nicht festgelegt, aber Informationen vorhanden) (DFG 2006)
  • INHALATIONSGEFAHREN Eine belästigende Partikelkonzentration in der Luft kann schnell erreicht werden.
  • WIRKUNGEN BEI KURZZEITEXPOSITION WIRKUNGEN BEI KURZZEITEXPOSITION:
    Die Substanz reizt die Augen, die Haut und die Atemwege.
  • LECKAGE Persönliche Schutzausrüstung: Atemschutzgerät, P1-Filter für inerte Partikel. Verschüttetes Material in abgedeckten Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste mit viel Wasser wegspülen.
  • R-Sätze Betriebsanweisung: R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
  • S-Sätze Betriebsanweisung: S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
    S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
    S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
  • Beschreibung 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.
  • Verwenden It is a dibasic acid, with pKa's of 2.89 and 5.51. The mono potassium salt, potassium hydrogen phthalate is a standard acid in analytical chemistry. Typically phthalate esters are prepared from the widely available phthalic anhydride. Reduction of phthalic acid with sodium amalgam in the presence of water gives the 1,3- cyclohexadiene derivative.
  • Verwenden Organic reagent used to synthesize phthalates.
  • Definition ChEBI: A benzenedicarboxylic acid cosisting of two carboxy groups at ortho positions.
  • Definition phthalic acid: colourlesscrystalline dicarboxylic acid,C6H4(COOH)2; r.d. 1.6; m.p. 207°C.The two –COOH groups are substitutedon adjacent carbon atoms ofthe ring, the technical name beingbenzene-1,2-dicarboxylic acid. Theacid is made from phthalic anhydride(benzene-1,2-dicarboxylic anhydride,C8H4O3), which is made by the catalyticoxidation of naphthalene. Theanhydride is used in making plasticizersand polyester resins.
  • Vorbereitung Methode Phthalic acid is produced by the catalytic oxidation of naphthalene directly to phthalic anhydride and a subsequent hydrolysis of the anhydride.
    Phthalic acid was first obtained by French chemist Auguste Laurent in 1836 by oxidizing naphthalene tetrachloride. Believing the resulting substance to be a naphthalene derivative, he named it "naphthalic acid". After the Swiss chemist Jean Charles Galissard de Marignac determined its correct formula, Laurent gave it its present name. Manufacturing methods in the nineteenth century included oxidation of naphthalene tetrachloride with nitric acid, or, better, oxidation of the hydrocarbon with fuming sulfuric acid, using mercury or mercury(II) sulfate as a catalyst.
  • Allgemeine Beschreibung White crystals or fine white powder.
  • Air & Water Reaktionen Insoluble in water.
  • Reaktivität anzeigen Phthalic acid is a carboxylic acid. Phthalic acid is sensitive to exposure to extreme heat. Phthalic acid reacts violently with nitric acid. Phthalic acid is incompatible with sodium nitrite. Phthalic acid is also incompatible with oxidizers. .
  • Brandgefahr Phthalic acid is combustible.
  • Sicherheitsprofil Moderately toxic by ingestion and intraperitoneal routes. A skin and mucous membrane irritant. Combustible when heated. In the form of dust (anhydride) it can explode. Mixtures with sodmm nitrite explode when heated. Violent reaction with HNO3. When heated to decomposition it emits acrid smoke and irritating fumes. Used in synthesis of dyes and dyestuffs, in medcines and perfumes.
  • Sicherheit(Safety) The toxicity of phthalic acid is low with LD50 (mouse) of 550 mg/kg. However, many phthalate esters have been implicated as endocrine disruptors.
  • Enzyminhibitor This aromatic acid (FWfree-acid = 166.13 g/mol; M.P. = ~230°C), also known as 1,2-benzenedicarboxylic acid, is readily converted to the anhydride when heated. The free acid is soluble in water (1 g/160 mL) and has pKa values (at 25°C) of 2.95 (dpKa/dT = 0.0020) and 5.41 (dpKa/dT = –0.001 at T < 25°C and +0.001 at T > 25°C). Target (s) : aconitase; aspartate aminotransferase; aspartate 4-decarboxylase; benzoylformate decarboxylase; g-butyrobetaine dioxygenase, or g-butyrobetaine hydroxylase, K = 17 mM; dehydro-L-gulonate decarboxylase; 4,5- i dihydroxyphthalate decarboxylase; diphospho-mevalonate decarboxyl- ase; glucose oxidase; glutamate decarboxylase; kynurenine aminotransferase; nicotinate-nucleotide diphosphorylase, carboxyl- ating, or quinolinate phosphoribosyltransferase peptidyl- dipeptidase A, or angiotensin I-converting enzyme; procollagen- proline 3-dioxygenase; succinate dehydrogenase; and tyrosine decarboxylase.
  • läuterung methode Crystallise phthalic acid from water. [Beilstein 9 IV 3167.]
  • Isomers Phthalic acid is one of three isomers of benzene dicarboxylic acid, the others being iso phthalic acid and terephthalic acid. Sometimes the term "phthalic acids" is used to refer to this family of isomers, but in the singular, "phthalic acid", refers exclusively to the ortho- isomer.
Phthalic acid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Phthalsure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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88-99-3, Phthalic acid Verwandte Suche:
  • 1,2-dicarboxybenzene
  • 1,2-phthalicacid
  • Acide phtalique
  • acidephtalique
  • acidephtalique(french)
  • Kyselina ftalova
  • kyselinaftalova
  • o-Benzenedicarboxylic acid
  • Phthalate Ion Chromatography Standard Solution Fluka
  • PHTHALIC ACID, 1000MG, NEAT
  • PHTHALIC ACID ACS REAGENT
  • PHTHALIC ACID REAGENT GRADE 98%
  • PATHALIC ACID
  • PhthalicAcidAcs
  • PhthalicAcidGr99.5%
  • PhthalicAcidForSynthesis
  • O-PHTHALIC ACID (PHTHALIC ACID )
  • Phthalic acid, 99.5%
  • PHTHALIC ACID REAGENT (ACS)
  • ORTHO-PHTHALICACIDANDITSSODIUMANDPOTASSIUMSALTS
  • Phthalsure
  • BENZENE-1,2-DICARBOXYLIC ACID / O-PHTHALIC ACID
  • Phthalic acid, ACS, 99.5+%
  • PHTHALIC ACID PURE
  • 1,2-Benzenedicarboxylic acid, Phthalic acid
  • Phthalate standard for IC
  • Phthalic acid,99%
  • THALIC ACID
  • Butyphthalide impurity 23
  • Phthalic acid, 99% 1KG
  • Phthalic acid, 99% 250GR
  • NSC 5348
  • C6H4COOH2
  • 88-99-3
  • o-benzenedicarboxylicacid
  • Sunftal 20
  • RARECHEM AL BO 0013
  • PHTHALATE ION CHROMATOGRAPHY STANDARD
  • PHTHALIC ACID
  • ORTHO-PHTHALIC ACID
  • O-PHTHALIC ACID
  • O-DICARBOXYBENZENE
  • 1,2-BENZENEDICARBONXYLIC ACID
  • 1,2-BENZENEDICARBONIC ACID, ANHYDRIDE
  • 1,2-BENZENEDICARBOXYLIC ACID
  • 1,2-PHENYL DICARBOXYLIC ACID
  • BENZENE-1,2-DICARBOXYLIC ACID
  • AURORA 15195
  • DIISONOYL PHTHALATE (DINP)
  • PHTHALIC ACID, 99.5+%, A.C.S. REAGENT
  • o-Carboxybenzoic Acid
  • Phthalic acid ACS reagent, >=99.5%
  • Phthalic acid puriss. p.a., >=99.5% (T)
  • Phthalic acid reagent grade, 98%
  • Phthalic acid Vetec(TM) reagent grade, 98%
  • TOTALBLOT+ PVDF MEMBRANES
  • 0-Phthalic acid
  • Phthalic acid, ACS, 99.5% min.