Polyphosphoric acid Price — China Factory EXW 2026

Polyphosphoric acid price Spec: China national standards

China EXW, VAT excluded

Newest China EXW USD 515.04 / MT · VAT excluded -434.0708 (-46.00%) as of 20210322

Newest Price 515.04

Price Date 20210322

Day's Change -434.07

Day's Range 515.04 - 80.97

Month's Change +546.9

Month's Range 515.04 - 1,061.95

Year's Change +46.02

Year's Range 515.04 - 469.03

Buyers should note that PPA purity and polymerization degree vary significantly by producer. For high-end applications like pharmaceutical catalysts or electronic-grade materials, ...

Also known as acidepolyphosphorique, acidesuperphosphorique, condensedphosphoricacid, condensedphosphoricacid(non-specificname)

Opinions

How is China's polyphosphoric acid supply structured, and who are the key producers?

Buyers should note that PPA purity and polymerization degree vary significantly by producer. For high-end applications like pharmaceutical catalysts or electronic-grade materials, sourcing from thermal-route producers with proven quality control is critical. Wet-process PPA may offer cost advantages but often requires additional purification.

How does the phosphoric acid price cycle affect polyphosphoric acid economics?

For procurement planning, track yellow phosphorus and thermal phosphoric acid spreads rather than just PPA spot prices. Seasonal demand from fertilizer and construction sectors can create windows where PPA buyers secure better terms. Consider locking in annual contracts during market troughs to hedge against upstream volatility.

What are the main downstream applications driving polyphosphoric acid demand in China?

The biomedical angle is interesting but niche. For volume demand, watch the flame retardant and construction sectors. Ammonium polyphosphate production is particularly sensitive to PPA quality and price, so tracking APP capacity additions gives a good read on future PPA consumption trends.

Polyphosphoric acid price context

What drives Polyphosphoric acid prices

How is China's polyphosphoric acid supply structured, and who are the key producers?: Buyers should note that PPA purity and polymerization degree vary significantly by producer. For high-end applications like pharmaceutical catalysts or electron...

How does the phosphoric acid price cycle affect polyphosphoric acid economics?: For procurement planning, track yellow phosphorus and thermal phosphoric acid spreads rather than just PPA spot prices. Seasonal demand from fertilizer and cons...

How we assess Polyphosphoric acid price

China factory / mainstream market EXW quotes (VAT excluded where shown) - not a single global public index

Regional and specification detail so buyers can compare like-for-like grades

Landed cost figures from our calculator are planning estimates, not a customs ruling

Overview

Polyphosphoric acid (PPA, CAS 8017-16-1) is a colourless, viscous, hygroscopic liquid with a density of 2.06 g/mL at 25 °C, a melting point of -20 °C, and a boiling point of 550 °C. It acts as a condensation agent, proton donor, and coagulant promoter across multiple sectors.

Chemical & industrial: serves as a dehydrating and condensing agent in organic synthesis, and as a precursor for phosphate esters and flame retardants.
Water treatment: polyphosphate salts derived from PPA form long-chain anions that adsorb onto calcium carbonate crystallites, inhibiting scale deposition.
Biomedical: polyphosphate-based systems, such as PolyP/tannic acid hydrogels, show haemostatic, anti-inflammatory, and antibacterial properties for wound dressings.
Food & feed: used in the production of high-purity phosphate salts and as an acidulant or sequestrant.

China's production landscape centres on thermal phosphoric acid feedstock, with the "one-step" process gaining traction for high-purity PPA grades. Domestic output meets most demand, with trade flows shaped by import/export dynamics for specialty and low-arsenic variants.

Key domestic producers:
Yangzhou Ruiyang Chemical – operates large-scale "one-step" PPA lines producing high-purity, low-arsenic grades.

Properties

Name

Polyphosphoric acid

acidepolyphosphorique

acidesuperphosphorique

condensedphosphoricacid

condensedphosphoricacid(non-specificname)

CAS Number

8017-16-1

EINECS No.

232-417-0

Risk Codes

S45;S36/37/39;S25;S26

Safety Description

HS Code

2809200000

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