Isophthalic acid - CAS 121-91-5

Catalog: BB005296
Product Name: Isophthalic acid
CAS: 121-91-5
Synonyms: benzene-1,3-dicarboxylic acid
Application: Used to make plastics, unsaturated polyester resins, alkyd resins, polyamides, and thermoplastic polyesters; Used as a co-monomer with terephthalic acid to make plastic bottles and specialty resins; Used in formulations for adhesives, inks, wire enamels, and dental materials.
Isophthalic acid
IUPAC Name:benzene-1,3-dicarboxylic acid
Description:Isophthalic acid (CAS# 121-91-5) is a useful reagent for preparing semiconductor sealing materials, prepregs, build-up films, solder resists, dry films, and printed wiring boards.
Molecular Weight:166.13
Molecular Formula:C8H6O4
Canonical SMILES:C1=CC(=CC(=C1)C(=O)O)C(=O)O
Boiling Point:412.3 °C
Melting Point:341-343 °C
Flash Point:217.3°C
Purity:85 %
Density:1.54 g/cm3
Solubility:6.02e-04 M;Soluble in 8000 parts cold water, 460 parts boiling water; freely soluble in alcohol; practically insoluble in petroleum ether;In methanol: 4.0 g/100 g at 25 °C; in propanol: 1.7 g/100 g at 25 °C, 2.7 g/100 g at 50 °C; in glacial acetic acid: 0.23 g/100 g at 25 °C;Insoluble in benzene, ligroin and ether;Water solubility: 120 mg/L at 25 °C, 350 mg/L at 50 °C, 3200 mg/L at 100 °C;In water, 5400 mg/L at 14 °C (pH adjusted water for complete dissociation);Solubility in water: none in cold water, poor in boiling water
Appearance:White solid with a slight unpleasant odor. sinks in water.
Storage:Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Decomposition:When heated to decomposition it emits acrid smoke and fumes
Refractive Index:1.5100 (estimate)
Stability:Stable. Incompatible with strong oxidizing agents, strong bases.
Vapor Pressure:2.6X10-8 mm Hg at 25 °C(est)

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