6858-44-2

Basic information

• Product Name: TRI-SODIUM CITRATE 5, 5-HYDRATE
• Synonyms: sodiumcitratepentahydrate;TRI-SODIUM CITRATE 5, 5-HYDRATE;CITRIC ACID TRISODIUM SALT HYDRATE;Sodium citrate tribasic hydrate;Citric acid trisodium salt, Trisodium citrate hydrate;5,5-AQUEOUS TRI-SODIUM CITRATE;Sodium citrate tribasic hydrate ReagentPlus(R), >=99%;Trisodium 2-hydroxypropane-1,2,3-tricarboxylate hydrate
• CAS NO: 6858-44-2
• Molecular Formula: 2C₆H₆O₇*3H₂O*4Na
• Molecular Weight: 276.08
• EINECS: 200-675-3
• Mol File: 6858-44-2.mol
• Article Data: 0

Chemical Properties

• Melting Point: 300 °C
• Appearance: /
• Density: 1.857
• Storage Temp.: Store at +5°C to +30°C.
• Water Solubility: g/100mL H2O: 92.6 (25°C), 250 (100°C); slightly soluble alcohol, insoluble ether [KIR78]
• BRN: 3819251
• CAS DataBase Reference: TRI-SODIUM CITRATE 5, 5-HYDRATE(CAS DataBase Reference)
• NIST Chemistry Reference: TRI-SODIUM CITRATE 5, 5-HYDRATE(6858-44-2)
• EPA Substance Registry System: TRI-SODIUM CITRATE 5, 5-HYDRATE(6858-44-2)

Safety Data

• Safety Statements: 24/25
• WGK Germany: 1
• Hazardous Substances Data: 6858-44-2(Hazardous Substances Data)

Usage

Chemical Properties

large, colorless crystal(s) or white granules; effloresces in air [MER06] [KIR78]

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

Synthetic route

sodium cation (17341-25-2) + citric acid (77-92-9) → citric acid ; trisodium-salt pentahydrate (6858-44-2)

Conditions	Yield
In water dissoln. of citric acid in H2O; addn. of Na salt; adjusting to pH 5.7-6.20; evapn. at temp. <46°C, 6.6 Torr; crystn.;;
In water dissoln. of citric acid in H2O; addn. of Na salt; adjusting to pH 5.7-6.20; evapn. at temp. <46°C, 6.6 Torr; crystn.;;

sodium carbonate (497-19-8) + citric acid (77-92-9) → citric acid ; trisodium-salt pentahydrate (6858-44-2)

water (7732-18-5) + citric acid ; trisodium-salt pentahydrate (6858-44-2) → formaldehyd (50-00-0)

Conditions	Yield
Belichtung mit tropischem Sonnenlicht;

citric acid ; trisodium-salt pentahydrate (6858-44-2) + hydrogen + nickel oxide + aluminium oxide → formic acid (64-18-6) + 2-methylbutanedioic acid (498-21-5, 636-60-2) + acetic acid (64-19-7)

Conditions	Yield
at 250 - 260℃; unter Druck;

citric acid ; trisodium-salt pentahydrate (6858-44-2) → water (7732-18-5) + trisodium citrate dihydrate (6132-04-3)

Conditions	Yield
In neat (no solvent) heating at temp. above 145°C;;
In neat (no solvent) heating at temp. above 145°C;;

citric acid ; trisodium-salt pentahydrate (6858-44-2) → sodium carbonate (497-19-8)

Conditions	Yield
In neat (no solvent) byproducts: C; decompn. at temp. above 571°C;;
In neat (no solvent) byproducts: C; decompn. at temp. above 571°C;;

water-d2 (7789-20-0) + citric acid ; trisodium-salt pentahydrate (6858-44-2) → trisodium citrate pentadeuterate

Conditions	Yield
In water-d2 repeated recrystn. from hot D2O (80°C);;
In water-d2 repeated recrystn. from hot D2O (80°C);;

Upstream product

• 497-19-8 sodium carbonate 
• 77-92-9 citric acid 
• 17341-25-2 sodium cation 

Downstream Products

• 64-18-6 formic acid 
• 498-21-5 2-methylbutanedioic acid 
• 64-19-7 acetic acid 
• 497-19-8 sodium carbonate 
• 7732-18-5 water 
• 6132-04-3 trisodium citrate dihydrate