Citric Acid S40

CAS Registry Number:

77-92-9 and 7631-86-9

Chemical Formula:

C6H8O7 and SiO2




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More information about Citric Acid S40:

General information

Citric Acid S40 is a very fine powder mixed with silicon dioxide. The silicon dioxide prevents the citric acid from caking. This type of citric acid is used as a set retarder in the construction industry to cause a delay in the solidification of the concrete.


Citric Acid S40 is a white, free flowing fine powder. Citric acid S40 contains approx. 4 % anticaking agent (SiO2). Specification is available on request.

Citric Acid S40 is supplied in 25 kg multilayer paper bags.


  • Increased stability in terms of powder flowing properties
  • Silicon dioxide has a high ability to absorb spurs of humidity, keeps citric acid free flowing
  • Very fine pulverised powder for non-food applications



Functional Acids
Citric acid with added value
Product Range
Bio-based ingredients

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