Citric acida colorless translucent crystalline acid, C6H8O7, principally derived by fermentation of carbohydrates or from lemon, lime, and pineapple juices and used in preparing citrates and in flavorings and metal polishes. Today, essentially all of the commercial citric acid is produced by surface or submerged fermentation by mold (Aspergillus Niger) and submerged fermentation by yeast (Candida guilliermondii, C. Lipolytica), using a variety of substrates including sucrose, molasses, corn syrup, enzyme-treated starch, and normal paraffins.
2 Applications
Citric Acid is mainly used as acidulant, flavoring agent, preservative and antistaling agent in food and beverage industry. Moreover, it is also used as antioxidant, plasticizer and detergent in chemical, cosmetics and cleaning industries
Citric acid is widely used in the food and pharmaceutical industries.
In foods it is used primarily to produce a tart taste and to complement fruit flavors in carbonated beverages, beverage powders, fruit-flavored drinks, jams and jellies, candy, sherbets, water ices, and wine. It is also used to reduce pH in certain canned foods to make heat treatment more effective, and in conjunction with antioxidants to chelate trace metals and retard enzymatic activity.
In pharmaceuticals, citric acid provides the acid source in effervescent tablets in addition to being used to adjust pH, impart a tart taste, and chelate trace metals.
| CHARACTERISTICS |
A WHITE CRYSTALLINE POWDER
COLORLESS CRYSTALS OR GRANULAR |
| IDENTIFICATION |
CONFORMING WITH THE TEST |
| ASSAY |
99.5%~101.0% |
| CLARITY |
CONFORMING WITH THE TEST |
| READILY CARBONATION SUBSTANCES |
CONFORMING WITH THE TEST |
| CALCIUM |
CONFORMING WITH THE TEST |
| Lead |
≤ 1PPM |
| OXALATE |
≤100PPM |
| SULPHATE |
≤150PPM |
| CHLORIDE |
≤50PPM |
| IRON |
≤50ppm |
| ARSENIC |
≤1ppm |
| HEAVY METALS(AS Pb) |
≤5PPM |
| WATER |
≤ 8.8 % |
| SULPHATED ASH |
≤0.05% |
| BACTERIAL ENDOTOXINS |
CONFORMING WITH THE TEST |
| MERCURY |
≤1 PPM |
| Citric acid monohydrate Basic information |
| Product Name: |
Citric acid monohydrate |
| Synonyms: |
CitronensαureMonohydrat;PROPANONE;PYROACETIC ETHER;FEMA 3326;EXTRAN AP 22;EXTRAN(R) AP 22;EXTRAN(R) AP22, ACID RINSE DETERGENT WITH CITRIC ACID;EXTRAN(R) AP22 DETERGENT |
| CAS: |
5949-29-1 |
| MF: |
C6H10O8 |
| MW: |
210.1388 |
| EINECS: |
200-662-2 |
| Product Categories: |
C-D, Puriss p.a. ACS;Puriss p.a. ACS;Buffers A to ZCarbonyl Compounds;Other BiochemicalBiological Buffers;Biochemicals Found in Plants;C6Nutrition Research;Carboxylic Acids;SigmaUltra Buffers;ACS GradeCarbonyl Compounds;Essential Chemicals;Other Biochemical;Analytical Reagents;Analytical Reagents for General Use;Puriss;Buffers A to ZEssential Chemicals;USP/MultiCompendial Grade Buffers;USPBiological Buffers;Biological Buffers;Routine Reagents;Buffers A to ZNutrition Research;Reagent GradeMetabolic Pathways;Metabolites and Cofactors on the Metabolic Pathways Chart;Other BiochemicalEssential Chemicals;TCA;Food additive and acidulant;#N/A;BioXtra Buffers;Biological Buffers;Buffers A to Z;Building Blocks;C6;Carbonyl Compounds;Carboxylic Acids;Chemical Synthesis;Nutrition Research;Organic Building Blocks;Other Biochemical;Phytochemicals by Chemical Classification;ACS Grade;Essential Chemicals;Inorganic Salts;Research Essentials;Solutions and Reagents;Citric Acid Monohydrate is mainly used as acidulating, flavoring and preservative in foods and beverages |
| Mol File: |
5949-29-1.mol |
| |
| |
| Citric acid monohydrate Chemical Properties |
| Melting point |
-94 °C(lit.) |
| Boiling point |
56 °C760 mm Hg(lit.) |
| density |
0.791 g/mL at 25 °C(lit.) |
| vapor density |
2 (vs air) |
| vapor pressure |
184 mm Hg ( 20 °C) |
| refractive index |
n20/D 1.359(lit.) |
| Fp |
1 °F |
| storage temp. |
Store at RT. |
| solubility |
H2O: soluble54% (w/w) at 10°C (Citric acid in water) |
| form |
Solid |
| color |
White |
| Specific Gravity |
0.810 (20/4ºC) |
| PH |
1.85 (50g/l, H2O, 25ºC) |
| Water Solubility |
1630 g/L (20 ºC) |
| Sensitive |
Hygroscopic |
| Merck |
14,2326 |
| BRN |
4018641 |
| Stability: |
Stable. Incompatible with oxidizing agents, bases, reducing agents, nitrates. |
| InChIKey |
YASYEJJMZJALEJ-UHFFFAOYSA-N |
| CAS DataBase Reference |
5949-29-1(CAS DataBase Reference) |
| NIST Chemistry Reference |
Citric acid monohydrate(5949-29-1) |
| EPA Substance Registry System |
1,2,3-Propanetricarboxylic acid, 2-hydroxy-, hydrate (1:1) (5949-29-1) |
| Hazard Codes |
F,Xi |
| Risk Statements |
11-36-66-67-41-36/37/38-37/38 |
| Safety Statements |
9-16-26-37/39-36/37/39-36 |
| RIDADR |
UN 1090 3/PG 2 |
| WGK Germany |
1 |
| RTECS |
AL3150000 |
| TSCA |
Yes |
| HS Code |
29181400 |
| Toxicity |
LD50 orally in Rabbit: 3000 mg/kg |
| Provider |
Language |
| Citric acid monohydrate |
English |
| SigmaAldrich |
English |
| ALFA |
English |
| |
| Citric acid monohydrate Usage And Synthesis |
| |
| Citric acid monohydrate Preparation Products And Raw materials |
| Raw materials |
Sodium hydroxide-->Hydrochloric acid-->Sulfuric acid -->Calcium carbonate |
| Preparation Products |
ribonucleic acid for injection-->2-(1H-PYRAZOL-1-YL)BENZOIC ACID-->3-(1H-PYRAZOL-3-YL)BENZOIC ACID-->ANGIOTENSIN II, HUMAN-->TERT-BUTYL (3S)-3-AMINOBUTANOATE-->LORACARBEF (200 MG)-->Ritonavir-->Prostaglandin E2 -->red kojic rice-->Calcium citrate-->Clomifene citrate-->citric acid, iron(3+) salt |
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