Iso Phthalic Acid (Purified, PIA)
White crystalline powder · CAS 121-91-5
Overview
Iso Phthalic Acid (Purified, PIA) (CAS 121-91-5) is one of the acids & descalants products Suraj Chemicals supplies to industrial, institutional and manufacturing buyers across India from our Chennai base. It is commonly used for unsaturated polyester resin and pet copolymer manufacture; alkyd and powder-coating resin production; gelcoat and fibreglass-reinforced plastics, among other applications in the acids & descalants category. We pack Iso Phthalic Acid (Purified, PIA) in 25/50 kg bags, and can arrange bulk, drum or tanker quantities for larger requirements — full characteristics, applications and downloadable documentation are below, or you can request a quote directly.
Specification Sheet — Characteristics
Download Specification Sheet (PDF)| Characteristics | Specifications |
|---|---|
| Assay | 99.5% Min |
| Moisture | 0.2% Max |
| 4-CBA Content | 150 ppm Max |
| Ash Content | 0.005% Max |
Values above are well-established typical/standard specification properties for this product, compiled from published technical references — not a batch-specific lab report. Figures can vary batch to batch — request a current certificate of analysis with your order.
Applications
- Unsaturated polyester resin and PET copolymer manufacture
- Alkyd and powder-coating resin production
- Gelcoat and fibreglass-reinforced plastics
Frequently Asked Questions
What is Iso Phthalic Acid (Purified, PIA)?
Iso Phthalic Acid (Purified, PIA) is supplied by Suraj Chemicals as white crystalline powder, identified by CAS number 121-91-5. It falls under our Acids & Descalants range — see the Specification Sheet table above for its full characteristics.
What is Iso Phthalic Acid (Purified, PIA) used for?
Typical applications include: Unsaturated polyester resin and PET copolymer manufacture; Alkyd and powder-coating resin production; Gelcoat and fibreglass-reinforced plastics.
How should Iso Phthalic Acid (Purified, PIA) be stored and handled?
Store in a dry, covered area.
What packaging and pack sizes does Suraj Chemicals supply Iso Phthalic Acid (Purified, PIA) in?
25/50 kg bags. Contact us if you need a different pack size, or a bulk/tanker quantity.
What is the shelf life of Iso Phthalic Acid (Purified, PIA)?
Typically around 24 months from date of manufacture when stored in original, unopened packaging under normal warehouse conditions, consistent with standard industry practice for this class of chemical. As with any industrial chemical, request the current batch's manufacturing date and a fresh certificate of analysis for orders where exact remaining shelf life matters.
Is Iso Phthalic Acid (Purified, PIA) hazardous to handle?
No specific hazard is flagged for Iso Phthalic Acid (Purified, PIA) beyond standard industrial chemical handling precautions. We still recommend you download the Safety Data Sheet (SDS/MSDS) in the sidebar above for full GHS hazard, handling and PPE details, as good practice for any industrial chemical.
Is a Specification Sheet, TDS or MSDS available for Iso Phthalic Acid (Purified, PIA)?
Yes — a downloadable Specification Sheet (PDF) with full characteristics and specifications is available above, and a downloadable Safety Data Sheet (SDS/MSDS) for Iso Phthalic Acid (Purified, PIA) is also available above.
Can I get a sample or discuss order quantity for Iso Phthalic Acid (Purified, PIA)?
Yes — use the Request Price & Availability button or WhatsApp us with your required quantity, and our team will confirm pricing, minimum order quantity, sample availability and delivery timelines for Iso Phthalic Acid (Purified, PIA).