| Melting point | 153-159 °C (lit.) |
| Boiling point | 248.08°C (rough estimate) |
| density | 1.67 g/cm3 at 20 °C |
| vapor density | 7.26 (vs air) |
| vapor pressure | <0.1 hPa (20 °C) |
| FEMA | 2306 | CITRIC ACID |
| refractive index | 1.493~1.509 |
| Fp | 100 °C |
| storage temp. | 2-8°C |
| solubility | Citric acid also dissolves in absolute (anhydrous) ethanol (76 parts of citric acid per 100 parts of ethanol) at 15 °C. |
| form | grit |
| pka | 3.14(at 20℃) |
| color | White |
| Odor | Odorless |
| PH | 3.24(1 mM solution);2.62(10 mM solution);2.08(100 mM solution); |
| explosive limit | 8%, 65°F |
| Water Solubility | soluble in Water (1174g/L at 10°C, 1809g/L at 30°C, 3825g/L at 80°C). |
| Sensitive | Hygroscopic |
| λmax | λ: 260 nm Amax: 0.20 λ: 280 nm Amax: 0.10 |
| Merck | 14,2326 |
| JECFA Number | 218 |
| BRN | 782061 |
| Stability: | Stable. Incompatible with bases, strong oxidizing agents, reducing agents, metal nitrates. |
| InChIKey | KRKNYBCHXYNGOX-UHFFFAOYSA-N |
| CAS DataBase Reference | 77-92-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,2,3-Propanetricarboxylic acid, 2-hydroxy-(77-92-9) |
| EPA Substance Registry System | Citric acid (77-92-9) |
Main application: Mainly used as acid condiment, flavoring agent, preservative and pharmaceutical excipients in food & beverage and pharmaceutical industries. It is also used as an antioxidant, plasticizer and detergent builder in chemical, cosmetics and detergent industries;
General characteristics: Colorless crystals or white crystalline granular or powder;
Molecular formula: C6H8O7;
Molecular weight: 192.13;
Package: Kraft paper bag, plastic woven bag, compound bags of PP and Kraft paper, Polypropylene bulk bags and other designated packages in net weight of 25kg/500kg/1000kg etc;
Storage: Store in dry, ventilated and contamination-free room temperature environment. Avoid direct sunlight and open stacking.
Main application: Mainly used as acid condiment, flavoring agent, preservative and pharmaceutical excipients in food & beverage and pharmaceutical industries. It is also used as an antioxidant, plasticizer and detergent builder in chemical, cosmetics and detergent industries;
General characteristics: Colorless crystals or white crystalline granular or powder;
Molecular formula: C6H8O7 • H2O;
Molecular weight: 210.14;
Package: Kraft paper bag, plastic woven bag, compound bags of PP and Kraft paper, Polypropylene bulk bags and other designated packages in net weight of 25kg/500kg/1000kg etc;
Storage: Store in dry, ventilated and contamination-free room temperature environment. Avoid direct sunlight and open stacking.
Main application: Mainly used as acid regulator in food products, flavoring agent, stabilizer, buffering agent, preservative and emulgator in food & beverage industry. In pharmaceutical industries, its used as anticoagulant, expectorants and diuretics. It can replace sodium tripolyphosphate as Non-toxic detergent additives in detergent industry. There are also wild applications in brewing, injection, photographic chemicals, electroplating and other industries;
General characteristics: Colorless crystals or white crystalline granular or powders;
Molecular formula: C6H5Na3O7 • 2H2O(Trisodium Citrate Dihydrate);C6H5Na3O7(Trisodium Citrate Anhydrous);
Molecular weight: 294.10(Trisodium Citrate Dihydrate);258.07(Trisodium Citrate Anhydrous);
Package: Kraft paper bag, plastic woven bag, compound bags of PP and Kraft paper, Polypropylene bulk bags and other designated packages in net weight of 25kg/500kg/1000kg etc;
Storage: Store in dry, ventilated and contamination-free room temperature environment. Avoid direct sunlight and open stacking.
Main application: Mainly used as analytical reagents and food additive. It can be used as alkaline potassium in pharmaceutical industry for alkalization of urine and treating hypokalemia. It can also be used to make high efficient compound fertilizer and be used in paper making and plating industries;
General characteristics: Colorless crystals or white crystalline granular or powders;
Molecular formula: C6H5K3O7 • H2O;
Molecular weight: 324.41;
Package: Kraft paper bag, plastic woven bag, compound bags of PP and Kraft paper, Polypropylene bulk bags and other designated packages in net weight of 25kg/500kg/1000kg etc;
Storage: Store in dry, ventilated and contamination-free room temperature environment. Avoid direct sunlight and open stacking.
Main application: It is used as nutrition enhancer in food and calcium supplements in medicines and health products;
General characteristics: White crystal or crystalline powder;
Molecular formula: Ca3(C6H5O7)2 • 4H2O;
Molecular weight: 570.50;
Package: Kraft paper bag, plastic woven bag, 25kg/bag and other sizes;
Storage: Store in dry, ventilated and contamination-free room temperature environment. Avoid direct sunlight and open stacking.
Main application: Mainly used in food and pharmaceutical industry;
General characteristics: White or nearly white, fine powder;
Molecular formula: Mg3(C6H5O7)2 • 9H2O(Magnesium Citrate Nonahydrate);Mg3(C6H5O7)2(Magnesium Citrate Anhydrous);
Molecular weight: 613.25(Magnesium Citrate Nonahydrate);451.1(Magnesium Citrate Anhydrous);
Package: Kraft paper bag, plastic woven bag, 25kg/bag and other sizes;
Storage: Store in dry, ventilated and contamination-free room temperature environment. Avoid direct sunlight and open stacking.
Main application: Mainly used as nutrition enhancer in food and zinc supplements in medicines and health products;
General characteristics: White crystal or crystalline powder;
Molecular formula: Zn3(C6H5O7)2 • 2H2O(Zinc Citrate Dihydrate);Zn3(C6H5O7)2 • 3H2O(Zinc Citrate Trihydrate);
Molecular weight: 610.37(Zinc Citrate Dihydrate);628.38(Zinc Citrate Trihydrate);
Package: Kraft paper bag, plastic woven bag, 25kg/bag and other sizes;
Storage: Store in dry, ventilated and contamination-free room temperature environment. Avoid direct sunlight and open stacking.
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