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W230618 Sigma-Aldrich

Citric acid

≥99.5%, FCC, FG

  • CAS Number 77-92-9

  • Linear Formula HOC(COOH)(CH2COOH)2

  • Molecular Weight 192.12

  •  FEMA Number 2306

  •  Beilstein/REAXYS Number 782061

  •  EC Number 201-069-1

  •  Council of Europe no. 20c

  •  MDL number MFCD00011669

  •  PubChem Substance ID 24900992

  •  NACRES NA.21

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Properties

Related Categories A - D, A-D, Alphabetical Listings, C-D, Certified Food Grade Products,
Quality Level   400
biological source   synthetic
grade   FG
  Halal
  Kosher
reg. compliance   EU Regulation 1334/2008 & 178/2002
  FCC
  FDA 21 CFR 117
  FDA 21 CFR 184.1033
assay   ≥99.5%
expl. lim.   8 %, 65 °F
pKa    (1) 3.13, (2) 4.76, (3) 6.4
mp   153-159 °C (lit.)
Documentation   see Safety & Documentation for available documents
Organoleptic   odorless
food allergen   no known allergens
SMILES string   OC(=O)CC(O)(CC(O)=O)C(O)=O
InChI   1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
InChI key   KRKNYBCHXYNGOX-UHFFFAOYSA-N
Gene Information   human ... SRC(6714)

Description

General description

Citric acid is an important organic acid that is extensively used in the food industry as a pH control agent, flavor modifier, an antimicrobial agent, a leavening agent and as an antioxidant. The treatment of potato-based foods with a combination of citric acid and glycine in low concentration may reduce the formation of acrylamide with minimal effect on the flavor. Citric acid is also an effective anti-browning agent of food and beverages due to its ability to inhibit the activity of polyphenol oxidase (PPO) enzyme responsible for browning.

Packaging

1 kg in poly bottle

10, 25 kg in fiber drum

Other Notes

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Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 1
RTECS 
GE7350000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles

Articles

Securing a Traceable Supply Chain for Food Grade Flavor Ingredients

Introduction Defining "Food Grade" Understanding "Food Grade" Versus "Industrial Grade" Top Questions to Ask a Flavor & Fragrances Supplier The Sigma-Aldrich Approach
Dr. Luke Grocholl
Quality Assurance Supervisor, Sigma-Aldrich Flavors & Fragrances
Keywords: Food & Beverage, Food Safety, Solvents

Understanding the Complexities of Kosher Ingredients

Introduction What is Kosher Product Considerations for Kosher Certification Kosher's Added Benefit to the Food Industry Sigma-Aldrich's Kosher Experience and Offering
Dr. Luke Grocholl1, Rabbi Gershon Segal

1Dr. Luke Grocholl, Quality Assurance Supervisor, Sigma-Aldrich Flavors & Fragrances
Keywords: Fermentation, Food & Beverage, Safety industry

Related Content

Flavors and Fragrances Quality and Regulatory

From a comprehensive vendor approval process, to the testing of raw material at receipt as well as when product is ready to be shipped; we prove our dedication to supply chain transparency, every day.
Keywords: Allergens, Food Safety, Solvents

Peer-Reviewed Papers
15

References

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