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Isophthalic acid is an organic compound with the formula C6H4(CO2H)2.
Isophthalic acid is a colorless solid.
Isophthalic acid is an isomer of isophthalic acid and terephthalic acid.
Isophthalic acid is one of three isomers of benzenedicarboxylic acid.
Isophthalic acid, its molecule consists of 6 Hydrogen atoms, 8 Carbon atoms and 4 Oxygen atoms, 18 atoms in total.
CAS number:121-91-5
Molecular weight:166.13
Molecular formula: C6H4(CO2H)2
EC number:204-506-4
Isophthalic acid is produced at the rate of billion kilograms per year by oxidation of meta-xylene using oxygen.
A cobalt-manganese catalyst is used in the process.
Isophthalic acid also results from the fusion of potassium meta-sulfobenzoate or meta-bromobenzoate with potassium formate.
Isophthalic acid aromatic dicarboxylic acids are used (in the acyl chloride form) as precursors of commercially important polymers.
Isophthalic acid is also used in the production of fire-resistant materials.
Isophthalic acid mixed with terephthalic acid is used in the production of PET resins for beverage plastic bottles and food packaging.
The high-performance polymer polybenzimidazole is produced from isophthalic acid.
In addition, acid is used as an important input in the production of insulation materials.
Isophthalic acid is a non-toxic organic compound.
Isophthalic acid colorless solid is an isomer of phthalic acid and terephthalic acid.
Isophthalic acid has performance properties including hydrolytic stability of gel coatings, outstanding thermal stability, and low resin color.
Isophthalic acid is also used in the automotive and marine industries.
Isophthalic acid is an important ingredient in commercial markets for products such as corrosion-resistant pipes and tanks.
Polyesters containing isophthalic acid are used in the construction industry.
Isophthalic acid is also common in industrial coating applications for home appliances, automobiles, aluminum siding, and metal office furniture.
Isophthalic acid is used as an intermediate for polyurethane resins and plasticizers.
Isophthalic acid is used as an intermediate in the production of unsaturated polyester resins and inks, reinforced plastics, and packaging applications.
Purified Isophthalic Acid is also used as a comonomer in the production of PET bottle resins.
Isophthalic acid provides excellent hardness, corrosion and stain resistance, hydrolytic and thermal stability, and low resin levels.
Isophthalic acid is an aromatic dicarboxylic acid produced industrially by the oxidation of m-xylene.
Isophthalic acid is used commercially primarily as a component of PET (polyethylene terephthalate) copolymer, which is used in bottle resins and, to a much lesser extent, fibers.
Isophthalic acid reduces the crystallinity of PET.
Isophthalic acid serves to increase clarity and increase efficiency in bottle making.
The second major use of isophthalic acid is as a component of unsaturated polyesters for high-quality plastic applications for industrial coatings.
Imbalances have occurred in the past due to the small number of isophthalic acid producers.
However, investments have been made since 2019.
New capacity for isophthalic acid production is expected to come online in India by the end of 2023.
Isophthalic Acid is an organic compound with the molecular formula C8H6O4.
Isophthalic acid is a colorless solid and is an isomer of phthalic acid and terephthalic acid.
Isophthalic acid increases the thermal/mechanical/chemical resistance of unsaturated polyester resins.
Isophthalic acid increases the water resistance of alkyd polyesters.
Isophthalic acid also increases not only its overall durability but also its weather resistance and hardness.
Isophthalic acid is a carboxylic acid.
Carboxylic acids donate hydrogen ions if a base is available to accept them.
They react in this way with all bases, both organic (e.g. amines) and inorganic.
Their reaction with bases, called "neutralization", is accompanied by the release of a significant amount 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 poorly soluble in water.
The soluble carboxylic acid dissociates to some extent in water to give hydrogen ions.
Therefore, the pH of carboxylic acid solutions is less than 7.0.
Most insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base.
It can react with carboxylic acid in aqueous solution, gaseous hydrogen, and active metals to form a metal salt.
Such reactions in principle also occur for solid carboxylic acids.
However, if the solid acid remains dry, it slows down.
Isophthalic acid reacts with cyanide salts to form gaseous hydrogen cyanide.
Isophthalic acid is slower than solid carboxylic acids if the reaction is dry.
In aqueous solution, isophthalic acid also reacts with flammable and/or toxic gases and ionides (SO2).
Its reactions with carbonates and bicarbonates release a harmless gas (carbon dioxide) but still produce heat.
Like other organic compounds, Isophthalic acid can be oxidized by strong oxidizing agents.
Isophthalic acid can be reduced by strong reducing agents.
Isophthalic acid takes part in certain reactions.
These reactions produce heat.
Carboxylic acids, like other acids, can initiate polymerization reactions.
Isophthalic acid often catalyzes (increases the rate of) chemical reactions.
Isophthalic acid is an intermediate in high-performance unsaturated polyesters, resins for coatings, high-solids paints.
Isophthalic acid is fire retardant but ignites in the presence of strong flammable substances.
Isophthalic acid may oxidize if exposed too much.
Although it is less flammable, it is sufficient for Isophthalic acid to remain in a flammable environment for it to become active.
Isophthalic acid serves as a precursor to fire-resistant materials and is also used in the preparation of the high-performance polymer polybenzimidazole.
Isophthalic acid is also used as an input in the production of insulation materials.
Isophthalic acid takes part in certain reactions.
These reactions produce heat.
Carboxylic acids, like other acids, can initiate polymerization reactions.
Isophthalic acid often catalyzes (increases the rate of) chemical reactions.
Isophthalic acid is an intermediate in high-performance unsaturated polyesters, resins for coatings, high-solids paints.
Isophthalic acid is fire retardant but ignites in the presence of strong flammable substances.
It may oxidize if exposed too much.
Although it is less flammable, it is sufficient for Isophthalic acid to remain in a flammable environment for it to become active.
Isophthalic acid serves as a precursor to fire-resistant materials and is also used in the preparation of the high-performance polymer polybenzimidazole.
Isophthalic acid is also used as an input in the production of insulation materials.
Isophthalic acid is used in the following products:
-adhesives and sealants, antifreeze products, coating products, lubricants and greases, polishes and waxes.
Other releases of isophthalic acid into the environment are likely to result from:
-indoor use, outdoor use as a processing aid, indoor use in close surroundings are minimum emission systems, minimum emission closed systems.
Isophthalic acid is a colorless, crystalline organic compound normally produced and sold in its anhydride form.
Isophthalic acid production exceeded 1,000,000 metric tons in the late 20th century.
Isophthalic acid is used as a component of polyesters, used as a plasticizer for alkyd resins and polyvinyl chloride.
Smaller amounts are consumed in the production of isophthalic acid anthraquinone (a dye intermediate), phenolphthalein (laxative and acid-base indicator), and phthalocyanine pigments.
Product: Isophthalic Acid - CAS 121-91-5
Purity (% w/w): Min. 99.9
Acid Number (mg KOH/g): 675 ± 2
3-CBA (ppm): Max. 25
m-Toluic Acid: (ppm): Max. 150
Value: Max. 1.0
Total Metal content (ppm): None > 2 and Total Max. 10
Ash (ppm): Max. 15
Water (w/w%) : Max. 0.1
Average Particle Size (Micron): 110±15
Isophthalic acid begins to decompose at temperatures around 196–199°C.
Isophthalic acid forms rhombic crystals that lose water and give phthalic anhydride.
The isomers, terephthalic acid and isophthalic acid, occur as colorless needles.
Isophthalic acid isomers have low acute toxicity, as do salicylic and benzoic acids.
The toxicity of isomers decreases in the order o -phthalic acid, isophthalic acid, terephthalic acid.
The main symptoms of isophthalic acid are local irritation of the skin and mucous membranes.
Isophthalic acid is not a sensitizer.
When allergic reactions occur in production workers (eczema, asthma), this is attributed to impurities in the starting materials
The application area of isophthalic acid is very wide.
Isophthalic acid is actively involved in making resins and materials.
While isophthalic acid is found in pet bottles and resins, it has made its name as a raw or intermediate material in various products.
Isophthalic acid (IPA) is also known as 1,3-phthalic acid and isophthalic acid.
Isophthalic acid is a white crystalline powder or needle-like crystal.
Its melting point is from 345 degrees to 347 degrees and can be sublimed.
Isophthalic acid is easily soluble in methanol, ethanol, acetone and Glacial acetic acid.
Isophthalic acid is slightly soluble in boiling water.
However, it is insoluble in benzene, toluene and petroleum ether.
Isophthalic acid has strong heat resistance, hydrolysis resistance and chemical resistance.
Isophthalic acid is flammable and has low toxicity.
The melting point of generally produced PET polyester is approximately 250°C.
The melting point for polyester made from 100% isophthalic acid is approximately 65°C.
If we use 50% isophthalic acid instead of Phthalic acid in the production process, the melting point of the resulting copolymer will be approximately 120 °C.
Therefore, the isophthalic acid content can be varied within a wide range according to the requirements of polymer performance.
Isophthalic acid type unsaturated resin is the polycondensation of isophthalic acid, butanediol anhydride and ethylene glycol.
Isophthalic acid has better hydrolytic stability than phthalic acid type unsaturated resin.
Isophthalic acid has higher hardness.
Isophthalic acid is mixed with high performance paper materials.
Isophthalic acid is used in the manufacture of elevators, railings and fishing rods.
Isophthalic acid can be converted into flame-retardant resins and structural resins with good physical properties and low cost.
Our isophthalic acid water soluble polyester chip belongs to unsaturated polyester polymer.
Isophthalic acid is made from the modified monomer of isophthalic acid, 5-SSIPA.
Isophthalic acid can produce dimethyl isophthalate-5-sodium sulfonate (SIPM), a modified monomer for polyester filings.
Isophthalic acid can make the dyeing of modified polyester fiber more bright and intense.
Incorporating isophthalic acid into polyester chips can produce cationic modified polyester filaments.
Although its appearance is not much different from ordinary polyester filaments, its properties are different.
The use of isophthalic acid cationic modification not only greatly improves the color absorption performance of the fiber.
Isophthalic acid also reduces the degree of crystallinity.
ISOPHLATIC ACID CHEMICAL AND PHYSICAL PROPERTIES
Molar mass: 166.13
Density: 1.54 g/cm3
Melting point: 341-343 °C (burning)
Boling Point: 214.32°C (rough estimate)
Flash point: 217.281°C
Water solubility: 0.01 g/100 mL (25°C)
resolution: 0.12 g/l
Vapor Pressure: 0Pa at 25°C
Appearance: Colorless crystal
Color: From white to off white
Merck:14.5197
Isophthalic acid is mainly found in beverage and food packaging.
Isophthalic acid is used as a component of PET, which is used in the production of plastic bottles for films and other types of package packaging.
Isophthalic acid reduces the crystallinity of PET but increases its workability.
Isophthalic acid improves the clarity of PET.
Isophthalic acid is a component of high-quality alkyds and polyester resins for coatings.
Isophthalic acid is a component of unsaturated polyesters for glass fiber reinforced plastic applications.
Isophthalic acid is activated by aldehyde to oxidation reaction at low temperature.
Isophthalic acid is activated by bromine to oxidation reaction at high temperature.
Purified Isophthalic Acid (PIA) is mainly used in unsaturated polyester resins.
Isophthalic acid improves the property balance of coating resins.
Isophthalic acid improves the clarity of PET bottle grade resins.
Other applications for isophthalic acid include its use in aramid fibers, as a component of copolyester resins, and in high-temperature polymers.
Isophthalic acid mixed with terephthalic acid is used to produce resin for beverage bottles.
The high-performance polymer poly benzimidazole is produced from isophthalic acid.
Isophthalic acid is a precursor polymer for alkyd and polyester resins and polyesters for fiberglass reinforced plastics.
Isophthalic acid is an aromatic organic compound with the meta conformation.
The molar mass of this compound is 166 g/mol.
Isophthalic acid also occurs as a colorless solid compound.
Isophthalic acid is an isomer of phthalic acid and terephthalic acid.
Looking at the production process, we can produce isophthalic acid by oxidizing meta-xylene in the presence of oxygen.
Isophthalic acid is an industrial scale production process.
Additionally, this process requires a catalyst such as a cobalt-manganese catalyst.
However, we can produce isophthalic acid in the laboratory by fusion of potassium meta-sulfobenzoate with potassium formate in the presence of chromic acid.
Additionally, isophthalic acid is an aromatic compound.
And it consists of a benzene ring with two carboxylic acid groups substituted into the ring.
Here, one carboxylic acid group is in the meta position with respect to the other carboxylic acid group.
Therefore, the two functional groups are separated from each other by a carbon atom of the ring.
Isophthalic acid is a semi-synthetic component.
SYNONYMS
121-91-5
Benzene-1,3-dicarboxylic acid
m-Phthalic acid
1,3-Benzenecarboxylic acid
m-Benzenecarboxylic acid
Acid isophthalic
Kyselina isoftalova
m-Dicarboxybenzene
NSC 15310
HSDB2090
EINECS 204-506-4
meta-benzenedicarboxylic acid
UNII-X35216H9FJ
BRN 1909332
CCRIS 8899
CHEBI:30802
AI3-16107
X35216H9FJ
Acid isophthalic [French]
Kyselina isoftalova [Czech]
NSC-15310
ISOTEREPHTHLIC ACID
M-CARBOXYBENZOIC ACID
3-CARBOXYBENZOIC ACID
DTXSID3021485
EC 204-506-4
4-09-00-03292 (Beilstein Handbook Reference)
DTXCID301485
WLN: QVR CVQ
MLS001075180
isophthalic acid
3-Carboxybenzoic acid; Isoterephthalic acid; NSC 15310; m-Benzenecarboxylic acid
CAS-121-91-5
NSC15310
NCGC00164010-01
SMR000112097
isophthalic acid
MFCD00002516
1,3-dicarboxybenzene
Isophthalic acid, 99%
benzene-1,3-dioic acid
55185-18-7
Pound of isophthalic acid (PIA)
SCHEMBL22462
ISOPHALIC ACID [MI]
1,3-benzene dicarboxylic acid
Benzene,1,3-dicarboxylic acid
ISOPHALIC ACID [HSDB]
ISOPHALIC ACID [PEARL]
CHEMBL1871181
HMS2269O09
AMY30288
Tox21_200409
Tox21_300106
BBL011591
Isophthalic acid, analytical standard
STL163327
AKOS000119766
DS-6425
NCGC00164010-02
NCGC00164010-03
NCGC00254219-01
NCGC00257963-01
BP-21126
CS-0020265
FT-0627450
FT-0693429
I0155
EN300-19753
A23846
C22203
Q415253
J-004707
J-521560
Z104475158
26776-13-6
8G0
InChI=1/C8H6O4/c9-7(10)5-2-1-3-6(4-5)8(11)12/h1-4H,(H,9,10)(H,11,1
