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| CAS No.: | 68-04-2 |
|---|---|
| Name: | Sodium citrate |
| Molecular Structure: | |
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| Formula: | C6H5Na3O7 |
| Molecular Weight: | 258.071 |
| Synonyms: | 1,2,3-Propanetricarboxylicacid, 2-hydroxy-, trisodium salt (9CI);Citric acid, trisodium salt (8CI);Sodiumcitrate (Na3C6H5O7) (7CI);331iii;Citnatin;Citra-lock;Citreme;Citrosodina;Citrosodine;Cystemme;Ional;Natrocitral;Sodium citrateanhydrous;Trisodium citrate;Unifine P 3; |
| EINECS: | 200-675-3 |
| Density: | 1.008 g/mL at 20 °C |
| Melting Point: | 300 °C |
| Boiling Point: | 309.6 °C at 760 mmHg |
| Flash Point: | 155.2 °C |
| Solubility: | Soluble in water. |
| Appearance: | white to off-white crystalline powder |
| Hazard Symbols: | Xi,C |
| Risk Codes: | 22-40-48/20/22 |
| Safety: | 36-24/25 |
| PSA: | 140.62000 |
| LogP: | -5.25260 |
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| Conditions | Yield |
|---|---|
| With lemon juice fermenting; clearing by CuSO4 and Na4(Fe(CN)6); filtration; adding soda up to wakly alkaline soln.; evapn.; crystn. of 80%; further 15% of product by pptn. of Ca(2+) by Na2CO3;; | 80% |
- 68-04-2
sodium citrate
| Conditions | Yield |
|---|---|
| With sodium sulfide |
| Conditions | Yield |
|---|---|
| In ammonia dissoln. of finely powd. Ca citrate (from lemon juice and Ca(OH)2) in H2O containing NH3; addn. of Na3PO4 with vigorous stirring at temp. <30°C; filtration; evapn.; crystn.;; |
| Conditions | Yield |
|---|---|
| In sodium hydroxide byproducts: H2O; | |
| In sodium hydroxide byproducts: H2O; |
| Conditions | Yield |
|---|---|
| In sodium hydroxide neutralization;; | |
| byproducts: H2O; | |
| In sodium hydroxide byproducts: H2O; |
| Conditions | Yield |
|---|---|
| In water | |
| In water |
| Conditions | Yield |
|---|---|
| In ammonia dissoln. of finely powd. Ca citrate (from lemon juice and Ca(OH)2) in H2O containing NH3; addn. of NaHSO4 with vigorous stirring at temp. <30°C; filtration; evapn.; crystn.;; |
| Conditions | Yield |
|---|---|
| In ammonia dissoln. of finely powd. Ca citrate (from lemon juice and Ca(OH)2) in H2O containing NH3; addn. of Na2SO4 with vigorous stirring at temp. <30°C; filtration; evapn.; crystn.;; |
| Conditions | Yield |
|---|---|
| With urea In Na-Ac |
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Chemistry
Molecular Structure:
Molecular Formula: C6H5Na3O7
Molecular Weight: 258.069
IUPAC Name: Trisodium 2-hydroxypropane-1,2,3-tricarboxylate
Synonyms of Sodium Citrate (CAS NO.68-04-2): 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, trisodium salt ; CCRIS 3293 ; Citnatin ; Citreme ; Citric acid, trisodium salt ; Citrosodina ; Citrosodine ; Citrosodna ; EINECS 200-675-3 ; FEMA No. 3026 ; HSDB 5201 ; Natrocitral ; Sodium citrate (Na3C6H5O7) ; Sodium citrate anhydrous ; Trisodium 2-hydroxy-1,2,3-propanetricarboxylate ; Trisodium citrate ; Trisodium citrate, anhydrous ; UNII-RS7A450LGA
CAS NO: 68-04-2
Classification Code: FOOD ADDITIVES ; Chemistry ; Cytochemistry Products ; Hematology and Histology ; ReagentsMore...Close... ; AlphabeticalMolecular Biology ; Biological Buffers ; BioUltra Buffers ; BioUltraBiological Buffers ; Buffer SolutionsBiochemicals and Reagents ; ChelatorsProtein Structural Analysis ; DNA&RNA Purification ; Molecular Biology Reagents ; Optimization ReagentsMolecular Biology ; X-Ray Crystallography ; Buffers A to Z ; AnticoagulantsBiological Buffers ; Buffers A to ZProteins and Derivatives ; Blood ; Buffer Convenience Packaging ; Buffer SolutionsBiological Buffers ; Coagulation Proteins and Reagents ; Immune Cell Signaling and Blood ; Plasma&Blood Proteins
Melting point: 300°C
H bond acceptors: 7
H bond donors: 4
Freely Rotating Bonds: 6
Polar Surface Area: 121.13 Å2
Flash Point: 155.2 °C
Enthalpy of Vaporization: 63.82 kJ/mol
Boiling Point: 309.6 °C at 760 mmHg
Vapour Pressure: 5.73E-05 mmHg at 25°C
Uses
Sodium Citrate (CAS NO.68-04-2) is used as a flavoring agent in certain varieties of club soda.
It is an ingredient in Benedict's reagent and is used by Canadian Blood Services as an anticoagulant during apheresis. When it comes in contact with water, it is a product of the chemical reaction Alka Seltzer produces.Sodium citrate is used in the relief of cystitis in women, its effect is to make the urine less acidic and therefore provide pain relief. Its is not recommended for children or men to use it.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 1364mg/kg (1364mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: CYANOSIS GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS | Journal of Pharmacology and Experimental Therapeutics. Vol. 94, Pg. 65, 1948. |
| mouse | LD50 | intravenous | 170mg/kg (170mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: CYANOSIS GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS | Journal of Pharmacology and Experimental Therapeutics. Vol. 94, Pg. 65, 1948. |
| rabbit | LD50 | intravenous | 449mg/kg (449mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: CYANOSIS GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS | Journal of Pharmacology and Experimental Therapeutics. Vol. 94, Pg. 65, 1948. |
| rat | LD50 | intraperitoneal | 1548mg/kg (1548mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: CYANOSIS GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS | Journal of Pharmacology and Experimental Therapeutics. Vol. 94, Pg. 65, 1948. |
Safety Profile
Risk Statements of Sodium Citrate (CAS NO.68-04-2): 20-40-48/22
R20: Harmful by inhalation.
R40: Limited evidence of a carcinogenic effect.
R48/22: Harmful: danger of serious damage to health by prolonged exposure if swallowed.
Safety Statements: 36-24/25
S36: Wear suitable protective clothing.
S24/25: Avoid contact with skin and eyes.
WGK Germany: 2
F: 34
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