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Merck
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Key Documents

SX0445

Supelco

Sodium citrate, dihydrate

Synonym(s):

Citric Acid, tri-Sodium Salt, Dihydrate

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About This Item

Assay

99.0-101.0% (acidimetric)

Quality Level

200

form

crystals

impurities

≤0.0005% Heavy metals (as Pb)
≤0.0005% Iron (Fe)
≤0.001% Chloride (Cl)
≤0.003% Ammonium (NH4)
≤0.004% Sulfate (SO4)
≤0.005% Calcium (Ca)
≤0.005% Insoluble matter

pH

7.5-9.0 (25 °C, 50 g/L in H2O)

mp

150 °C (anhydrous substance)

solubility

720 g/L

storage temp.

room temp

Application

crystals GR ACS

Analysis Note

Ammonium (NH4):0.003% max
Assay (acidimetric):99.0-101.0%
Calcium (Ca):0.005% max
Chloride (Cl):0.001% max
Heavy metals (as Pb):0.0005% max
Insoluble matter:0.005% max
Iron (Fe):0.0005% max
Sulfate (SO4):0.004% max
pH (5%, water, 25°C):7.5-9.0

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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