Citric Acid Anhydrous FAQ | Common Buyer Questions

Here are the most common questions buyers ask about Citric Acid Anhydrous, the food grade acidity regulator supplied by GNF CHEMICAL.

What is Citric Acid Anhydrous?
Citric Acid Anhydrous is a food grade organic acid (E330, CAS 77-92-9) with almost no crystal water. It appears as white crystalline powder or granules with a strong sour taste and excellent water solubility, widely used as acidulant, pH regulator and preservative.
What is the difference between Citric Acid Anhydrous and Monohydrate?
Citric Acid Anhydrous contains no water of crystallization, with moisture ≤0.5% and assay 99.5–100.5%. Monohydrate contains about 7.5–9.0% crystal water. Anhydrous is preferred for moisture-sensitive formulations and dry powder blends, while monohydrate is more cost-effective for general beverage use.
What is the CAS number and E number?
CAS No. is 77-92-9 and E number is E330.
What is the purity and moisture of your Citric Acid Anhydrous?
Assay 99.5–100.5% and moisture ≤0.5%, ensuring stable acidity and no caking in dry applications.
Where is Citric Acid Anhydrous mainly used?
It is used in beverages, canned fruit, jam, candy, bakery, dairy, seasoning, pharmaceutical excipients, cosmetics and industrial cleaning and descaling.
Which mesh sizes can you supply?
We supply 8-40 mesh and 30-100 mesh options. Custom mesh can be arranged upon request for different production lines.
What is your packing for Citric Acid Anhydrous?
Standard packing is 25kg woven bag with inner PE liner. Custom packaging and private label are acceptable for bulk orders.
Do you provide free samples for testing?
Yes, free samples are available for lab test and formulation trial, buyers only need to cover the freight cost.
What certificates and documents can you provide?
We provide ISO, HACCP, Halal, Kosher certificates, batch COA, MSDS, health certificate, packing list and invoice for customs clearance.
What is the shelf life and storage condition?
Shelf life is 24 months when sealed and stored in a dry, cool and well-ventilated warehouse, away from moisture, direct sunlight, alkaline materials and strong oxidants.