IDENTIFICATION OF FUNCTIONAL GROUPS ORGANIC COMPOUNDS FROM RICE STRAW PULP BASED SPECTRA FTIR

Abstract

The purpose of research is conducted in the order to would have known
determine of functional groups organic compounds contained by rice straw pulp treatment of
the experimental results rice straw pulping. By identifying the functional groups of organic
compounds through rice straw pulp FTIR spectrum of research results and then compare it
with the image of standard cellulose FTIR spectra. And analyze with the framework of
functional groups of organic compounds builder cellulose structure.
Based on the experimental results pulp cooking rice straw treated with solution of cooked 2 %
NaOH, 3 % NaOH and 4 % NaOH obtained average yields rice straw pulp is 49,28 %, 27,62 %
and 24,39 %.
Based on test results FTIR spectra of rice straw pulp known as much as 18 peaks the
wavelength of functional groups of organic compounds, as shown in Table – 5.
From the identification of the peak wavelength of functional groups organic compounds and
compare it with the image of standard cellulose FTIR spectra, as shown in Table – 5 there were
11 peaks of functional groups of organic compounds which has a wavelength closes the
wavelength approaches value of functional groups organics compound cellulose standard
FTIR spectrum image.
Of the 11 peaks of functional group organic compounds,there are as many 6 functional group
of the organic compound cellulose structure of the skeleton builder wavelengths 2889,37 cm1
; 1667,28 cm-1
; 1431,18 cm-1
; 1327,03 cm-1
; 1249,87 cm-1
and 898,83 cm-1