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Table 1 Constitution of tested DES

From: Deep eutectic solvents: green solvents for the removal of degraded gelatin on cellulose nitrate cinematographic films

DES abbreviation

HBA

HBD

Added distilled water content (%wt)

ChCl:EG

Choline Chloride (ChCl)

Ethylene Glycol (EG)

0%

B:EG

Betaine (B)

Ethylene Glycol (EG)

10%

B:U

Betaine (B)

Urea (U)

30%