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The different properties and specifications of citric acid easters

The different properties and specifications of citric acid easters


Properties of citric acid esters

Name

TEC

ATEC

TBC

ATBC

Cas   No.

77-93-0

77-89-4

77-94-1

77-90-7

Molecular   Formula

C12H20O7

C14H22O8

C18H32O7

C20H34O8

Molecular   weight

276.3

318.3

360.4

402.5

Flash   Pint,

150

190

184

204

Boiling   Point at 1.33

 (mbar),

127

132

170

173

Freezing   Pint,

-45

-43

-62

-80

Viscosity   at 25,mPa-s

35.2

53.7

32.9

32.7

Solubility   in Water at

 25,   g/100ml

6.5

0.7

Insoluble

Insoluble

 


Specifications of citric acid esters

Name

TEC

ATEC

TBC

ATBC

Cas No.

77-93-0

77-89-4

77-94-1

77-90-7

Purity, %

99.0 min

99.0 min

99.0 min

99.0 min

Acidity(as Citric acid), %

0.2 max

0.2 max

0.2 max

0.2 max

Color (APHA)

50 max

50 max

50 max

30 max

Water Content, %

0.25 max

0.25 max

0.25 max

0.15 max

Relative density, 25 º C, g/cm3

1.135-1.139

1.135-1.139

1.037-1.045

1.045-1.055

Refractive index, 25 º C   /D

1.440-1.442

1.432-1.441

1.443-1.445

1.4410-1.4425


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