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Isophthalsure Produkt Beschreibung

Isophthalic acid Struktur
121-91-5
CAS-Nr.
121-91-5
Bezeichnung:
Isophthalsure
Englisch Name:
Isophthalic acid
Synonyma:
Isophthalic;isophthalate;M-PHTHALIC ACID;IPA)Isophthalic;1,3-phthalicacid;ISOPHTHALIC ACID;META-PHTHALICACID;acideisophtalique;m-Dicarboxybenzene;Acide isophtalique
CBNumber:
CB3262667
Summenformel:
C8H6O4
Molgewicht:
166.13
MOL-Datei:
121-91-5.mol

Isophthalsure Eigenschaften

Schmelzpunkt:
341-343 °C (lit.)
Siedepunkt:
214.32°C (rough estimate)
Dichte
1,54 g/cm3
Brechungsindex
1.5100 (estimate)
storage temp. 
Sealed in dry,Room Temperature
Löslichkeit
0.12g/l
Aggregatzustand
Crystalline Powder
pka
3.54(at 25℃)
Farbe
White to off-white
Wasserlöslichkeit
0.01 g/100 mL (25 ºC)
Merck 
14,5197
BRN 
1909332
Stabilität:
Stable. Incompatible with strong oxidizing agents, strong bases.
InChIKey
QQVIHTHCMHWDBS-UHFFFAOYSA-N
CAS Datenbank
121-91-5(CAS DataBase Reference)
NIST chemische Informationen
1,3-Benzenedicarboxylic acid(121-91-5)
EPA chemische Informationen
Isophthalic acid (121-91-5)

Sicherheit

Kennzeichnung gefährlicher Xi
R-Sätze: 36/37/38
S-Sätze: 24/25-36-26
WGK Germany  2
RTECS-Nr. NT2007000
Selbstentzündungstemperatur 1198 °F
TSCA  Yes
HS Code  29173980
Giftige Stoffe Daten 121-91-5(Hazardous Substances Data)

Isophthalsure Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

FARBLOSES KRISTALLINES PULVER.

PHYSIKALISCHE GEFAHREN

Staubexplosion der pulverisierten oder granulierten Substanz in Gemischen mit Luft möglich.

ARBEITSPLATZGRENZWERTE

TLV nicht festgelegt (ACGIH 2005).
MAK: 2 mg/m?(Einatembare Fraktion); Spitzenbegrenzung: überschreitungsfaktor I(2); Schwangerschaft: Gruppe C; (DFG 2006).

AUFNAHMEWEGE

Aufnahme in den Körper durch Verschlucken.

INHALATIONSGEFAHREN

Verdampfen bei 20°C vernachlässigbar; eine belästigende Partikelkonzentration in der Luft kann jedoch schnell erreicht werden.

WIRKUNGEN BEI KURZZEITEXPOSITION

WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz reizt die Haut leicht.

LECKAGE

Verschüttetes Material in Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste sorgfältig sammeln. An sicheren Ort bringen. Persönliche Schutzausrüstung: Atemschutzgerät, P2-Filter für schädliche Partikel.

R-Sätze Betriebsanweisung:

R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-Sätze Betriebsanweisung:

S24/25:Berührung mit den Augen und der Haut vermeiden.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.

Beschreibung

Isophthalic acid is an organic compound with the formula C6H4(CO2H)2. This colourless solid is an isomer of phthalic acid and terephthalic acid. These aromatic dicarboxylic acids are used as precursors (in form of acyl chlorides) to commercially important polymers, e.g. the fire-resistant material Nomex. Mixed with terephthalic acid, iso phthalic acid is used in the production of resins for drink bottles. The high-performance polymer poly benzimidazole is produced from iso phthalic acid.

Chemische Eigenschaften

Isophthalic acid is a white crystalline powder or needle-like crystals and it’s an isomer of phthalic acid and terephthalic acid.It is insoluble in cold water but soluble in oxygenated solvents and alcohol. It is combustible and finely dispersed particles will form explosive mixtures in air.
Isophthalic acid
Isophthalic Acid (PIA)  is mainly used in the production of bottle PET, also used in the production of alkyd resin, polyester resin, also used in the production of photosensitive materials, pharmaceutical intermediates and so on.
One of the largest applications for PIA is in unsaturated polyester resins for high-quality gel coats. The hardness, stain and detergent resistance characteristics of PIA are ideal for polyester solid-surface countertops that are an inexpensive alternative to acrylics.

Verwenden

Purified Isophthalic Acid (PIA) is mainly used as intermediate for high performance UPR, resins for coatings, high solids paints, gel coats, modifier of PET for bottles. Product Data Sheet

Verwenden

Isophthalic acid is used as an intermediate for high performance unsaturated polyesters, resins for coatings, high solids paints, gel coats and modifier of polyethylene terephthalate for bottles. It acts as precursors for the fire-resistant material nomex as well as used in the preparation of high-performance polymer polybenzimidazole. It is also employed as an input for the production of insulation materials.

synthetische

Iso phthalic acid is produced on the billion kilogram per year scale by oxidizing meta-xylene using oxygen . The process employs a cobalt-manganese catalyst. In the laboratory, chromic acid can be used as the oxidant. It also arises by fusing potassium meta-sulpho benzoate , or meta - brom benzoate with potassium formate (terephthalic acid is also formed in the last case).
The barium salt (as its hexa hydrate) is very soluble (a distinction between phthalic and terephthalic acids). Uvitic acid, 5- methylisophthalic acid, is obtained by oxidizing mesitylene or by condensing pyroracemic acid with baryta water.

Definition

ChEBI: A benzenedicarboxylic acid that is benzene substituted by carboxy groups at position 1 and 3. One of three possible isomers of benzenedicarboxylic acid, the others being phthalic and terephthalic acids.

Synthesis Reference(s)

Journal of the American Chemical Society, 82, p. 1911, 1960 DOI: 10.1021/ja01493a020

Allgemeine Beschreibung

White solid with a slight unpleasant odor. Sinks in water.

Air & Water Reaktionen

Dust forms explosive mixture in air [USCG, 1999].

Reaktivität anzeigen

Isophthalic acid is a carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in Isophthalic acid to corrode or dissolve iron, steel, and aluminum parts and containers. Carboxylic acids, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. The reaction is slower for dry, solid carboxylic acids. Insoluble carboxylic acids react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. Carboxylic acids, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Like other organic compounds, carboxylic acids can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. A wide variety of products is possible. Like other acids, carboxylic acids may initiate polymerization reactions; like other acids, they often catalyze (increase the rate of) chemical reactions.

Health Hazard

May cause slight to moderate irritation of eyes, skin, and mucous membranes on prolonged contact. Ingestion may cause gastrointestinal irritation.

Brandgefahr

Behavior in Fire: Dust forms explosive mixture in air.

läuterung methode

Crystallise the acid from aqueous EtOH. [Beilstein 9 IV 3292.]

Isophthalsure Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Isophthalsure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 352)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Hefei TNJ Chemical Industry Co.,Ltd.
0551-65418671
0551-65418697 sales@tnjchem.com CHINA 37441 58
Capot Chemical Co.,Ltd.
+86(0)13336195806 +86-571-85586718
+86-571-85864795 sales@capotchem.com China 20012 60
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com China 22607 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com China 9156 55
Anhui Royal Chemical Co., Ltd.
+86-025-86655873
marketing@royal-chem.com CHINA 536 55
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679
86-0551-65418697 info@tnjchem.com China 3000 55
Yancheng Green Chemicals Co.,Ltd
86-25-86655873
86-25-52279193 sales@greenchem-china.com CHINA 94 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3623 58
career henan chemical co
+86-0371-55982848
sales@coreychem.com China 29953 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58

121-91-5(Isophthalsure)Verwandte Suche:


  • RARECHEM AL BO 0036
  • M-PHTHALIC ACID
  • 1,3-dicarboxybenzene
  • 1,3-phthalicacid
  • m-benzenedicarboxylicacid
  • m-Dicarboxybenzene
  • 1,3-BENZENEDICARBOXYLIC ACID
  • 1,3-PHENYL DICARBOXYLIC ACID
  • ISOPHTHALIC ACID
  • Isophthalic Acid/Benzene-1,3-dicarboxylic acid(IPA)
  • IsophthalicAcidForSynthesis
  • ISOPHTHALIC ACID (M-PHTHALIC ACID )
  • Isophthalic
  • Isophthalic acid reference substance
  • META-PHTHALICACID
  • BENZENE-1,3-DICARBOXYLIC ACID / ISOPHTHALIC ACID
  • Isophthalic acid -Respirable Dust
  • Isophthalic acid Total Dust
  • ISOPHTHALIC ACID pure
  • Isophthalic acid,99%
  • PIA Benzene-1,3-dicarboxylic acid
  • Acide isophtalique
  • acideisophtalique
  • acideisophtalique(french)
  • isophthalate
  • Kyselina isoftalova
  • kyselinaisoftalova
  • kyselinaisoftalova(czech)
  • m-Benzenedicarboxylic acid
  • Benzene-M-dicarboxylic acid
  • Isophthalic acid, 99% 2KG
  • Isophthalic acid, 99% 5GR
  • Isophthalic acid, synthesis grade
  • IPA)Isophthalic
  • Isophthalic acid (IPA)
  • Isophthalic acid 99%
  • Benzene-1,3-dicarboxylic aci
  • Isophthalic acid, 99.5%
  • Isophthalic acid(PIA)
  • IsophthalicAcidSolution,100mg/L,1ml
  • IsophthalicAcid>
  • Isophthalic acid, 99.5%, for synthesis
  • 121-91-5
  • 121915
  • HOOCC6H4COOH
  • C6H413CO2H2
  • Organic Building Blocks
  • Carboxylic Acids
  • Carbonyl Compounds
  • C8
  • Building Blocks
  • solvents and intermediates
  • Building Blocks
  • C8
  • Carbonyl Compounds
  • Carboxylic Acids
  • Chemical Synthesis
  • Organic Building Blocks
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