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Merck
CN

61333

Sodium citrate tribasic dihydrate

puriss. p.a.

Synonym(s):

Citric acid trisodium salt dihydrate, Trisodium citrate dihydrate

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About This Item

Linear Formula:
HOC(COONa)(CH2COONa)2 · 2H2O
CAS Number:
Molecular Weight:
294.10
EC Number:
200-675-3
UNSPSC Code:
41121800
MDL number:
Beilstein/REAXYS Number:
6104939
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grade

puriss. p.a.

shelf life

limited shelf life, expiry date on the label

impurities

insoluble matter, passes filter test

pH

7.5-9.0 (25 °C, 1 M in H2O)

mp

>300 °C (lit.)

solubility

H2O: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤10 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤100 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, NH4+: ≤10 mg/kg, Ni: ≤5 mg/L, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

suitability

in accordance for LC-MS

SMILES string

O.O.[Na+].[Na+].[Na+].OC(CC([O-])=O)(CC([O-])=O)C([O-])=O

InChI

1S/C6H8O7.3Na.2H2O/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);;;;2*1H2/q;3*+1;;/p-3

InChI key

NLJMYIDDQXHKNR-UHFFFAOYSA-K

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H. Sudergat et al.
LC-GC, April supplement, 12-12 (2002)

Global Trade Item Number

SKUGTIN
334537-500MG04061826738313

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