Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Phthalic Anhydride o-Phthalic Anhydride Raw Material

LonzaPhthalicAnhydrideSeriesPA-100o-PhthalicAnhydrideRawMaterialhigh-purityindustrial-gradeorganicacidanhydrideusedinPVCstabilizersunsaturatedpolyesterresinsandphthalateplasticizers.Manufacturedviavapor-phaseoxidationofonaphthaleneorortho-xylene.MeetsUSP/EPspecifications.Lowwatercontent<0.1%excellentthermalstabilityandconsistentbatch-to-batchperformancewidelytrustedincoating,adhesiveandpolymerindustries.
  • phthalic anhydride o phthalic anhydride raw material_4e1a90b1
  • phthalic anhydride o phthalic anhydride raw material_4e1a90b1

Features Of Phthalic Anhydride o-Phthalic Anhydride Raw Material

  1. High purity (>99.5%) with low volatile impurities, ensuring consistent reactivity in downstream synthesis.

  2. Optimized crystalline structure for excellent flowability and handling stability during bulk processing.

  3. Low chloride and heavy metal content, meeting stringent requirements for high-performance resin production.

  4. Thermally stable under standard storage conditions (≤30 °C, dry), minimizing premature hydrolysis.

  5. Compliant with REACH and ISO 9001 manufacturing controls for traceability and batch consistency.

Typical Applications Of Phthalic Anhydride o-Phthalic Anhydride Raw Material

  1. Primary raw material for unsaturated polyester resins (UPRs) used in marine, automotive, and construction composites.

  2. Key monomer in alkyd resin synthesis for industrial coatings, architectural paints, and varnishes.

  3. Intermediate in the production of plasticizers such as di(2-ethylhexyl) phthalate (DEHP) and dibutyl phthalate (DBP).

  4. Building block for dyes, including phenolphthalein and anthraquinone derivatives.

  5. Used in pharmaceutical intermediates, e.g., in the synthesis of phthalylsulfathiazole and other heterocyclic compounds.

Specifications Of Phthalic Anhydride o-Phthalic Anhydride Raw Material

Chemical TypeAromatic cyclic anhydride
Product FormWhite to off-white crystalline flakes or powder
AppearanceFree-flowing, non-caking crystals
Molecular Weight148.12 g/mol
Melting Point130–132 °C
Purity (GC)≥99.5%
Color (APHA)≤20
Moisture Content≤0.15% w/w


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *