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36664 Citric acid, anhydrous, ACS, 99.5+%

CAS Number
77-92-9
Synonyms

Stock No. Size Price ($) Quantity Availability
36664-22 100g 24.10
36664-36 500g 44.50
36664-A3 2kg 116.00
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Citric acid, anhydrous, ACS, 99.5+%

MDL
MFCD00011669
EINECS
201-069-1

Chemical Properties

Formula
C6H8O7
Formula Weight
192.13
Form
Crystalline
Melting point
153-154°
Density
1.665
Storage & Sensitivity
Hygroscopic. Ambient temperatures.
Solubility
It is very soluble in water, freely soluble in ethanol (96 %) and sparingly soluble in ether.

Grade Specifications

Maximum level of impurities: Insoluble matter 0.005%, Residue after ignition 0.02%, Cl 0.001%, C2O4 P.T. (limit about 0.05%), PO4 0.001%, SO4 0.002%, Fe 3ppm, Pb 2ppm, Substances carbonizable by hot sulfuric acid (tartrates, etc.) P.T.

Applications

Citric acid is the most widely used organic acid and pH-control agent in foods, beverages, pharmaceuticals and technical applications. Used in pharmaceutical preparations, especially in effervescent tablets. It is used as a natural preservative.

Notes

Citric acid anhydrous is non-toxic. It is chemically stable if stored at ambient temperatures. Stability tests have shown that citric acid anhydrous is chemically stable for at least five years in tightly closed containers under proper storage conditions. Hygroscopic.

Literature References

Pan, K.; Zhong, Q. Improving Clarity and Stability of Skim Milk Powder Dispersions by Dissociation of Casein Micelles at pH 11.0 and Acidification with Citric Acid. Agric. Food Chem. 2013, 61 (38), 9260-9268.

Kolah, A. K.; Asthana, N. S.; Vu, D. T.; Carl T. Lira.; Miller, D. J. Reaction Kinetics of the Catalytic Esterification of Citric Acid with Ethanol. Ind. Eng. Chem. Res. 2007, 46 (10), 3180-3187.

GHS Hazard and Precautionary Statements

Hazard Statements: H319-H335-H500

Causes serious eye irritation. May cause respiratory irritation. May form combustible dust concentrations in air

Precautionary Statements: P264b-P271-P280i-P304+P340-P305+P351+P338-P312-P501c

Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear eye/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. Dispose of contents/ container to an approved waste disposal plant

Other References

Merck
14,2326
Beilstein
782061
Harmonized Tariff Code
2918.14
TSCA
Yes
RTECS
GE7350000

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