Potassium pyrosulfate Price — China Factory EXW 2026

Potassium pyrosulfate price Spec: China national standards

China EXW, VAT excluded

Newest China EXW USD 195.42 / MT · VAT excluded -336.2301 (-63.00%) as of 20210323

Newest Price 195.42

Price Date 20210323

Day's Change -336.23

Day's Range 195.42 - -140.81

Month's Change +82.79

Month's Range 195.42 - 278.21

Year's Change -118.34

Year's Range 195.42 - 313.76

One practical point: because the market is small, few producers run dedicated lines, so material often comes as a byproduct or side batch. That makes batch-to-batch purity the real...

Also known as DI-POTASSIUM DISULPHATE, Dipotassium disulfate, Dipotassium disulphate, Dipotassium pyrosulfate

Opinions

Is potassium pyrosulfate a growth market or a steady specialty niche?

One practical point: because the market is small, few producers run dedicated lines, so material often comes as a byproduct or side batch. That makes batch-to-batch purity the real risk, not price. Requesting a certificate of analysis per lot and keeping a qualified second source is more valuable here than squeezing the last few percent off the unit price.

How does China's potassium sulfate capacity shape potassium pyrosulfate supply?

The seasonal angle is easy to underestimate. If a buyer needs steady pyrosulfate volumes through the third quarter, locking feedstock earlier in the year is prudent. Also note that resource-based potassium sulfate from brine operations behaves differently from Mannheim-process material, so qualifying two suppliers with different production routes reduces exposure to any single plant's maintenance schedule.

Potassium pyrosulfate price context

What drives Potassium pyrosulfate prices

Is potassium pyrosulfate a growth market or a steady specialty niche?: One practical point: because the market is small, few producers run dedicated lines, so material often comes as a byproduct or side batch. That makes batch-to-b...

How does China's potassium sulfate capacity shape potassium pyrosulfate supply?: The seasonal angle is easy to underestimate. If a buyer needs steady pyrosulfate volumes through the third quarter, locking feedstock earlier in the year is pru...

How we assess Potassium pyrosulfate 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

Potassium pyrosulfate (CAS 7790-62-7) is a white, crystalline, hygroscopic solid with a melting point of 325 °C and a density of 2.28 g/mL at 25 °C. It is an acidic flux and strong dehydrating agent, primarily used in analytical chemistry for sample decomposition and fusion.

Analytical chemistry: used as an acidic fusion flux to decompose ores and refractory oxides such as rutile (TiO₂) for subsequent elemental analysis.
Industrial: employed in the preparation of persulfates and as a sulfonating or dehydrating agent in organic synthesis.
Laboratory use: applied in the cleaning of platinum laboratory ware, where low-temperature fusion removes surface contaminants.

China's production is largely tied to the potassium sulfate and sulfuric acid value chains, with output meeting domestic analytical and industrial demand. The market is mature and stable, with no significant import dependence; supply is adequate for laboratory and niche industrial applications.

Key domestic producers:
Sinopharm Chemical Reagent – analytical and laboratory grade.
Aladdin Reagent – high-purity grade for research use.

Properties

Name

Potassium pyrosulfate

DI-POTASSIUM DISULPHATE

Dipotassium disulfate

Dipotassium disulphate

Dipotassium pyrosulfate

CAS Number

7790-62-7

EINECS No.

232-216-8

Risk Codes

S26;S36/37/39;S45

Safety Description

HS Code

2833290000

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