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Isophthalic acid (IPA for short), also known as 1,3-benzenedicarboxylic acid or isophthalic acid, has strong heat resistance, hydrolysis resistance and chemical resistance, can be salted, dehydrated, hydrogenated, halogenated and other reactions, the largest use is used as an intermediate in the production of unsaturated polyester resins Chemicalbook, followed by the manufacture of polyester resins, alkyd resins (the main use of paint manufacturing) and printing inks. It is also used for reinforcing plastics. In addition, it can also be used to enhance the plastic and packaging, the manufacture of film colouring agents, coatings and polyester fibre dyeing modifiers and pharmaceuticals, etc., the development and utilization of broad prospects. | |||||||||
121-91-5
bosschemical
121-91-5
Isophthalic acid
CAS No.121-91-5
Alias: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
Molecular formula：C8H6O4
Molecular weight：166.13
Structural formula：
1.Performance and use:
Crystallised from water or ethanol as colourless crystals. Slightly soluble in water, insoluble in benzene, toluene and petroleum ether, soluble in methanol, ethanol, acetone and glacial acetic acid.
Used in the production of alkyd resins, unsaturated polyester resins and other polymers and plasticizers, also used in the manufacture of film colorants, coatings and polyester fibre dyeing modifiers and pharmaceuticals.
Used as reagent for chromatographic analysis, also used in organic synthesis.
2.Technical indicators:
product name | Isophthalic acid | quantity | 105MT |
ITEM | UNIT | SPECIFICATION | RESULT |
Purity | Wt% | Min 99.9 | 99.9 |
Acid No. | mgKOH/g | 675 ± 2 | 675 |
3-Carboxybenzaldehyde | wtppm | Max25 | 1.2 |
Meta Toluic Acid | wtppm | Max150 | 4.0 |
Moisture | Wt% | Max 0.1 | 0.054 |
b'-value | - | 0.47 | |
Particle Size AVG | - | 106 | |
ASH | wtppm | Max15 | 1.9 |
Total Metal | wtppm | Max10 | 0.50 |
Fe | wtppm | Max1 | 0.02 |
Co | wtppm | Max1 | 0.04 |
Mn | wtppm | Max1 | 0.05 |
3. Packaging and storage:
Packaging specification: Packing specification: 25kg/bag, also can be determined according to user's need.
During transportation, it is necessary to protect against sunlight, rain, and high temperatures.
The product should be stored in a cool, dark, ventilated place, away from sources of fire.
4.Safety protection:
Pay attention to labor protection when handling it and avoid contact with skin, eyes, etc.After contact, rinse immediately with plenty of water
Related keywords：
Isophthalic acid
CAS No.121-91-5
