Trisodium citrate Trisodium citrate

Structural formula

• Numbering system
• Physical property data
• Toxicological data
• Ecological data
• Molecular structure data
• Computing chemical data
• More
  • Properties and Stability
  • Storage method
  • Synthesis method
  • Purpose

Numbering system

CAS number:68-04-2

MDL number:MFCD00012462

EINECS number:200-675-3

RTECS number:GE8300000

BRN number:None

PubChem number:24899674

Physical property data

1. Properties: Colorless crystals or white granular powder, odorless, refreshing and slightly spicy.

2. Density (g/mL, 20/4℃): 1.008

3. Relative vapor density (g/mL, air=1): Uncertain

4. Melting point (ºC): 300

5. Boiling point (ºC, normal pressure): Uncertain

6. Boiling point (ºC, 5.2kPa): Uncertain

7. Refractive index: Uncertain

8. Flash point (ºC): Uncertain

9. Specific rotation (º): Uncertain

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10. Autoignition point or ignition temperature (ºC): Uncertain

11. Vapor pressure (kPa, 25ºC): Uncertain

12. Saturated vapor pressure (kPa, 60ºC): Uncertain

13. Heat of combustion (KJ/mol): Uncertain

14. Critical temperature (ºC): Uncertain

15. Critical pressure (KPa): Uncertain

16. Log value of oil-water (octanol/water) partition coefficient: Uncertain

17. Explosion upper limit (%, V /V): Uncertain

18. Lower explosion limit (%, V/V): Uncertain

19. Solubility: Soluble in water and glycerol, insoluble in ethanol.

Toxicological data

Acute toxicity:

Rat abdominal LD50: 1549 mg/kg; Mouse abdominal LD50: 1364 mg/kg;

Mouse intravenous LD50: 170 mg/kg; Rabbit intravenous LD50: 449 mg/kg;

Ecological data

None yet

Molecular structure data

None yet

Compute chemical data

1. Number of hydrogen bond donors: 1

2. Number of hydrogen bond acceptors: 7

3. Number of rotatable chemical bonds: 2

4. Topological molecular polar surface area (TPSA): 141

5. Number of heavy atoms: 16

6. Surface charge: 0

7. Complexity : 211

8. Number of isotope atoms: 0

9. Number of determined atomic stereocenters: 0

10. Number of uncertain atomic stereocenters: 0

11. Determined number of stereocenters of chemical bonds: 0

12. Uncertain number of stereocenters of chemical bonds: 0

13. Number of covalent bond units ：4

SexQuality and Stability

White crystalline particles or powder. Soluble in water, hardly soluble in alcohol, the pH of the aqueous solution is about 8. Odorless, with a cool and salty taste. Stable in air.

Storage method

This product should be sealed and stored in a cool, dry place away from light.

Synthesis method

It is obtained by neutralizing citric acid with sodium hydroxide or sodium bicarbonate. Dissolve sodium bicarbonate in water under stirring and heating, add citric acid, continue to raise the temperature to 85-90°C, and adjust the pH to 6.8. Add activated carbon to decolorize and filter while hot. The filtrate was concentrated under reduced pressure and crystallized after cooling. Filter, wash and dry to obtain sodium citrate.

Purpose

This product is used as a seasoning and stabilizer in food processing, as a buffer and secondary complexing agent in the non-toxic electroplating industry, as an anticoagulant, expectorant and diuretic in the pharmaceutical industry, and in brewing, injections, and pharmaceuticals. Film drugs, etc.