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Merck
CN

71497

Sodium citrate monobasic

BioXtra, anhydrous, ≥99.5% (T)

Synonym(s):

Citric acid monosodium salt, Sodium dihydrogen citrate

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About This Item

Linear Formula:
HOC(COONa)(CH2COOH)2
CAS Number:
Molecular Weight:
214.11
UNSPSC Code:
12161700
NACRES:
NA.25
PubChem Substance ID:
EC Number:
242-734-6
Beilstein/REAXYS Number:
3920246
MDL number:
Assay:
≥99.5% (T)
Form:
crystals
Solubility:
H2O: 0.25 M at 20 °C, clear, colorless
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Quality Level

product line

BioXtra

assay

≥99.5% (T)

form

crystals

impurities

insoluble matter, passes filter test, ≤0.2% water

pH

3.5-4.0 (25 °C, 0.25 M in H2O)

solubility

H2O: 0.25 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 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: ≤50 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

λ

0.25 M in H2O

SMILES string

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

InChI

1S/C6H8O7.Na/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;+1/p-1

InChI key

HWPKGOGLCKPRLZ-UHFFFAOYSA-M

Application

Sodium citrate monobasic has been used-
  • as a component of Beltsville thawing solution (BTS) for semen dilution
  • for the formulation of isonitrogenous diets to study the effects of sodium citrate in red hybrid tilapia
  • for the preparation of SSC (saline sodium citrate) made for post-hybridization wash


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Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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