Trisodium citrate

Sodium citrate
Names
	Preferred IUPAC name Trisodium 2-hydroxypropane-1,2,3-tricarboxylate
	Other names Sodium citrate; Trisodium citrate; Citrosodine; Citric acid, trisodium salt; E331
Identifiers
CAS Number	68-04-2 ; 6132-04-3 (dihydrate) ; 6858-44-2 (pentahydrate) ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL1355 ;
ChemSpider	5989 ;
ECHA InfoCard	100.000.614
E number	E331iii (antioxidants, ...)
PubChem CID	6224;
RTECS number	GE8300000;
UNII	RS7A450LGA ; B22547B95K (dihydrate) ;
CompTox Dashboard (EPA)	DTXSID2026363 ;
	InChI InChI=1S/C6H8O7.3Na/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);;;/q;3+1/p-3 Key: HRXKRNGNAMMEHJ-UHFFFAOYSA-K ; InChI=1/C6H8O7.3Na/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);;;/q;3+1/p-3 Key: HRXKRNGNAMMEHJ-DFZHHIFOAL;
	SMILES C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.[Na+].[Na+].[Na+];
Properties
Chemical formula	Na3C6H5O7
Molar mass	258.06 g/mol (anhydrous), 294.10 g/mol (dihydrate)
Appearance	White crystalline powder
Density	1.7 g/cm3
Melting point	> 300 °C (572 °F; 573 K) (hydrates lose water ca. 150 °C)
Boiling point	Decomposes
Solubility in water	Anhydrous form:57 g/100 g H2O (25 °C) Pentahydrate form: 92 g/100 g H2O (25 °C)
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Irritant
NFPA 704 (fire diamond)	1 0 0
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	1548 mg/kg (intraperitoneal, rat)
Safety data sheet (SDS)	External MSDS
Related compounds
Related compounds	Monosodium citrate; Disodium citrate; Calcium citrate; Citric acid
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Trisodium citrate has the molecular formula Na₃C₆H₅O₇. It is sometimes referred to simply as "sodium citrate", though sodium citrate can refer to any of the three sodium salts of citric acid. It possesses a saline, mildly tart flavor, and is a mild alkali.

^ "Sodium citrate | 68-04-2". Retrieved 14 December 2023.
^ "CRC Handbook of Chemistry and Physics". Retrieved 22 November 2013.
^ Chambers, Michael. "ChemIDplus - 68-04-2 - HRXKRNGNAMMEHJ-UHFFFAOYSA-K - Sodium citrate anhydrous - Similar structures search, synonyms, formulas, resource links, and other chemical information". chem.nlm.nih.gov.

[1] "Sodium citrate | 68-04-2". Retrieved 14 December 2023.

[2] "CRC Handbook of Chemistry and Physics". Retrieved 22 November 2013.

[3] Chambers, Michael. "ChemIDplus - 68-04-2 - HRXKRNGNAMMEHJ-UHFFFAOYSA-K - Sodium citrate anhydrous - Similar structures search, synonyms, formulas, resource links, and other chemical information". chem.nlm.nih.gov.

[1]

[2]

[3]

Names


Preferred IUPAC name Trisodium 2-hydroxypropane-1,2,3-tricarboxylate
Other names Sodium citrate Trisodium citrate Citrosodine Citric acid, trisodium salt E331
Identifiers
CAS Number	68-04-2^Y 6132-04-3 (dihydrate)^Y 6858-44-2 (pentahydrate)^Y
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL1355^Y
ChemSpider	5989^Y
ECHA InfoCard	100.000.614
E number	E331iii (antioxidants, ...)
PubChem CID	6224
RTECS number	GE8300000
UNII	RS7A450LGA^Y B22547B95K (dihydrate)^Y
CompTox Dashboard (EPA)	DTXSID2026363
InChI InChI=1S/C6H8O7.3Na/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);;;/q;3+1/p-3^N Key: HRXKRNGNAMMEHJ-UHFFFAOYSA-K^N InChI=1/C6H8O7.3Na/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);;;/q;3+1/p-3 Key: HRXKRNGNAMMEHJ-DFZHHIFOAL
SMILES C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.[Na+].[Na+].[Na+]
Properties
Chemical formula	Na₃C₆H₅O₇
Molar mass	258.06 g/mol (anhydrous), 294.10 g/mol (dihydrate)
Appearance	White crystalline powder
Density	1.7 g/cm³
Melting point	> 300 °C (572 °F; 573 K) (hydrates lose water ca. 150 °C)
Boiling point	Decomposes
Solubility in water	Anhydrous form:57 g/100 g H₂O (25 °C) ^[1] Pentahydrate form: 92 g/100 g H₂O (25 °C)^[2]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Irritant
NFPA 704 (fire diamond)	1 0 0
Lethal dose or concentration (LD, LC):
LD₅₀ (median dose)	1548 mg/kg (intraperitoneal, rat)^[3]
Safety data sheet (SDS)	External MSDS
Related compounds
Related compounds	Monosodium citrate Disodium citrate Calcium citrate Citric acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references