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68-04-2

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Identification

Name
Sodium citrate
CAS
68-04-2
Synonyms
2-hydroxy-1,2,3-propanetricarboxylic acid trisodium salt
BUFFER SOLUTION
CITRATE BUFFERED SOLUTION
CITRIC ACID TRISODIUM SALT
FEMA 3026
SODIUM CITRATE
SODIUM CITRATE TRIBASIC
TRI-SODIUM CITRATE
1,2,3-Propanetricarboxylicacid,2-hydroxy,trisodiumsalt
1,2,3-propanetricarboxylicacid2hydroxy-trisodiumsalt
2,3-propanetricarboxylicacid,2-hydroxy-trisodiumsalt
citnatin
citreme
citrosodina
citrosodine
citrosodna
natrocitral
Sodiumcitrate,anhydrous
sodiumcitrateanhydrous
Sodium Citrate Tribasic solution 1 M inwater
EINECS(EC#)
200-675-3
Molecular Formula
C6H5Na3O7
MDL Number
MFCD00012462
Molecular Weight
258.07
MOL File
68-04-2.mol

Chemical Properties

Appearance
White to off-white crystalline powder
mp 
300°C
density 
1.008 g/mL at 20 °C

FEMA 
3026
storage temp. 
2-8°C

Uses
Sodium Citrate is a buffer and sequestrant obtained from citric acid as sodium citrate anhydrous and as sodium citrate dihydrate or sodium citrate hydrous. the crystalline products are prepared by direct crystallization from aqueous solutions. sodium citrate anhy- drous has a solubility in water of 57 g in 100 ml at 25°c, while sodium citrate dihydrate has a solubility of 65 g in 100 ml at 25°c. it is used as a buffer in carbonated beverages and to control ph in preserves. it improves the whipping properties in cream and pre- vents feathering of cream and nondairy coffee whiteners. it pro- vides emulsification and solubilizes protein in processed cheese. it prevents precipitation of solids during storage in evaporated milk. in dry soups, it improves rehydration which reduces the cooking time. it functions as a sequestrant in puddings. it functions as a complexing agent for iron, calcium, magnesium, and aluminum. typical usage levels range from 0.10 to 0.25%. it is also termed trisodium citrate.
Uses
Sodium citrate is also known as citrate of soda, the white crystals or granular powder was obtained by neutralizing citric acid with sodium carbonate. It is soluble in water but less so in alcohol. Sodium citrate was used as a preservative in albumen papers.
Uses
sodium citrate may be used in cosmetic formulations as an alkalizer and to bind trace metals in solutions (by means of a chelating action). It is the sodium salt of citric acid.
Uses
Trisodium Citrate is a buffer and sequestrant that is the trisodium salt of citric acid. see sodium citrate.
CAS DataBase Reference
68-04-2(CAS DataBase Reference)
EPA Substance Registry System
68-04-2(EPA Substance)

Safety Data

Risk Statements 
R22:Harmful if swallowed.
R40:Limited evidence of a carcinogenic effect.
R48/20/22:Harmful: danger of serious damage to health by prolonged exposure through inhalation and if swallowed .
Safety Statements 
S36:Wear suitable protective clothing .
S24/25:Avoid contact with skin and eyes .
WGK Germany 
2

RTECS 
GE8300000


34
HS Code 
29181500
Hazardous Substances Data
68-04-2(Hazardous Substances Data)

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Material Safety Data Sheet(MSDS)

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