Product Technical Specification:
Citric Acid Anhydrous
Molecular Formula C6H8O7
Molecular Weight 192.13
CAS Number 77-92-9
Product Specifications
Assay (%) 99.5 – 100.5
Water (%) 0.5 max
Identification Passes USP/FCC tests
Residue on Ignition (%) 0.05 max
Oxalate/Oxalic Acid (%) 0.036 max
Sulfate (%) 0.015 max
Arsenic (ppm) 1 max
Heavy Metals (ppm) 5 max / FCC IV Ed.
Lead (ppm) 0.5 max
Readily Carbonizable
Substances Passes USP and FCC tests
Tridodecylamine (ppm) 0.1 max
Color & Clarity Passes USP Tests
Particle Size Distribution
Granular Max. 1% on U.S. No. 16 sieve Max. 10% through U.S. No. 50 sieve
Fine Granular Max. 1% on U.S. No. 30 sieve Max. 5% through U.S. No. 100 sieve
Powder Max. 5% on U.S. No. 60 sieve Min. 25% through U.S. No. 200 sieve
Bulk Densities Granular 56 (lbs/ft3 ) Fine Granular 54
Packaging 25 Kg : Polyethylene-lined multiwall paper bags: 50 lb (22.7 Kg) Polyethylene-lined multiwall paper bags
Shelf Life and Storage
We recommend that product held for more than 5 years be reevaluated for fitness of use. Anhydrous Citric Acid is slightly hydroscopic and should be stored under conditions of low temperature and low humidity in airtight containers to prevent caking.