Open AccessFEATURES OF A COMPREHENSIVE FORENSIC RESEARCH OF HYDROLYZED LIGNIN
Author(s) -
К. Danshina,
Т. Filonenko
Publication year - 2019
Publication title -
teorìâ ta praktika sudovoï ekspertizi ì krimìnalìstiki
Language(s) - English
Resource type - Journals
eISSN - 2708-5171
pISSN - 1993-0917
DOI - 10.32353/khrife.1.2019.40
Subject(s) - lignin , chemistry , maceration (sewage) , hydrolysis , raw material , magnesium , chemical composition , reagent , water content , organic chemistry , materials science , composite material , geotechnical engineering , engineering
The article deals with the peculiarities of complex expert research of lignin, since knowledge of the forensic and chemical and forensic examinations was required. It was noted that in the microscopic study, all of the samples submitted for research revealed small particles of brown wood with different shades and brown conglomerates. The maceration method investigated specially processed samples of the substances provided. A qualitative reaction to lignin revealed the presence of molecules provided for the study of substances, the conifer aldehyde group and the structural chain that is characteristic of lignin. Qualitative reactions revealed that iron, calcium, magnesium, aluminum and sulfate ions were identified in all lignin samples, which characterizing qualitative composition of vegetable raw materials. It has been determined that further studies of lignin should be carried out in a well-established manner, namely: determination of carbon content; quantitative determination of solids and hygroscopic moisture; determination of ash content; determination of the quantitative content of calcium; quantitative determination of magnesium; determination of quantitative content of iron.