ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Determination of hydroxyl groups in alkali-lignin by methylation with dimethyl sulfate
Forschungsinstitut für Papier und Zellstoff in Bratislava
Abstract: Time and temp. of the reaction affect the results which, under certain conditions, attain a value close to complete methylation. For the detn. of OH groups in alkali-lignin, 3 times repeated 6-hr. methylation with dimethyl sulfate at 60° is recommended.
Full paper in Portable Document Format: 139a536.pdf (in Slovak)
Chemical Papers 13 (9) 536–540 (1959)