range which indicates that the trim

range which indicates that the trimethylalkyl quants
would have the same decomposition mechanism.
Details about the evolution of organic substance will
be discussed later.
In order to con®rm that organic substances decomposed
over the temperature range 200±5008C, sample
2044 was pyrolyzed from room temperature to
5008C, and then both the control sample 2044 and
pyrolyzed sample were examined by FTIR. It is
clearly shown in Fig. 6 that the organic C±H vibrations
…wave number ˆ 2629; 2853; and 1478 cm
ÿ1
† disappeared
after samples were heated to 5008C.
Meanwhile, there were still OH absorption
…wave number ˆ 3690; 3620; and 1636 cm
ÿ1
† [16,17]
for the pyrolyzed samples that did not change in either
frequency or intensity. It can be concluded, therefore,
that the main weight losses over the temperature range
200±5008C are due to the decomposition of organic
compounds.
3.1.3. The dehydroxylation region in the
temperature range 500±8008C
In the temperature range 500±8008C, the hydroxyl
group, which is covalantly incorporated in the crystal
lattice, is dehydrated. The dehydration reactions in
natural montmorillonite has been well investigated
[18±20]. For sample 2044, water is again the decomposition
product in this temperature range as con®rmed
by TGA±MS results shown in Fig. 5.
3.1.4. The high temperature reaction between
organic carbon and inorganic oxygen between
800 and 10008C
One of the most distinguishing differences between
sodium montmorillonite and the organically modi®ed
montmorillonite is in the temperature range from 800
to 10008C. Sodium montmorillonite is very stable
when the temperature is higher than 8008C, however,
the OLS continues to lose weight. Larger amount of

Hasil (Bahasa Indonesia) 1:

range which indicates that the trimethylalkyl quantswould have the same decomposition mechanism.Details about the evolution of organic substance willbe discussed later.In order to con®rm that organic substances decomposedover the temperature range 200±5008C, sample2044 was pyrolyzed from room temperature to5008C, and then both the control sample 2044 andpyrolyzed sample were examined by FTIR. It isclearly shown in Fig. 6 that the organic C±H vibrations…wave number ˆ 2629; 2853; and 1478 cmÿ1† disappearedafter samples were heated to 5008C.Meanwhile, there were still OH absorption…wave number ˆ 3690; 3620; and 1636 cmÿ1† [16,17]for the pyrolyzed samples that did not change in eitherfrequency or intensity. It can be concluded, therefore,that the main weight losses over the temperature range200±5008C are due to the decomposition of organiccompounds.3.1.3. The dehydroxylation region in thetemperature range 500±8008CIn the temperature range 500±8008C, the hydroxylgroup, which is covalantly incorporated in the crystallattice, is dehydrated. The dehydration reactions innatural montmorillonite has been well investigated[18±20]. For sample 2044, water is again the decompositionproduct in this temperature range as con®rmedby TGA±MS results shown in Fig. 5.3.1.4. The high temperature reaction betweenorganic carbon and inorganic oxygen between800 and 10008COne of the most distinguishing differences betweenmineral montmorilonite natrium dan organik modi® edmineral montmorilonite adalah dalam kisaran suhu 800c. 10008 Mineral montmorilonite natrium sangat stabilKapan suhu lebih tinggi daripada 8008C, namun,OLS terus menurunkan berat badan. Jumlah yang lebih besar

Hasil (Bahasa Indonesia) 2:

Kisaran yang menunjukkan bahwa quants trimethylalkyl
akan memiliki mekanisme dekomposisi yang sama.
Rincian tentang evolusi zat organik akan
dibahas kemudian.
Dalam rangka untuk con®rm bahwa zat organik terurai
selama rentang temperatur 200 ± 5008C, sampel
2044 itu pyrolyzed dari kamar suhu
5008C, dan kemudian keduanya kontrol sampel 2044 dan
sampel pyrolyzed diperiksa oleh FTIR. Hal ini
jelas ditunjukkan pada Gambar. 6 bahwa C organik ± H getaran
jumlah gelombang ?? ?? 2629; 2853; dan 1478 cm
Y1
?? menghilang
setelah sampel dipanaskan untuk 5008C.
Sementara itu, masih ada OH penyerapan
?? jumlah gelombang ?? 3690; 3620; dan 1636 cm
Y1
?? [16,17]
untuk sampel pyrolyzed yang tidak berubah baik
frekuensi atau intensitas. Dapat disimpulkan, karena itu,
bahwa kerugian berat utama atas suhu kisaran
200 ± 5008C adalah karena dekomposisi organik
senyawa.
3.1.3. Wilayah dehidroksilasi di
rentang suhu 500 ± 8008C
Dalam rentang suhu 500 ± 8008C, hidroksil
kelompok, yang covalantly tergabung dalam kristal
kisi, adalah dehidrasi. Reaksi dehidrasi pada
montmorillonite alam telah diteliti dengan baik
[18 ± 20]. Untuk sampel 2.044, air lagi dekomposisi
produk dalam kisaran suhu ini sebagai con®rmed
oleh hasil TGA ± MS ditunjukkan pada Gambar. 5.
3.1.4. Reaksi suhu tinggi antara
karbon organik dan oksigen anorganik antara
800 dan 10008C
Salah satu perbedaan yang paling membedakan antara
natrium montmorillonite dan organik modi®ed
montmorillonite adalah dalam kisaran suhu dari 800
ke 10008C. Sodium montmorillonite sangat stabil
ketika suhu lebih tinggi dari 8008C, namun,
yang OLS terus menurunkan berat badan. Jumlah yang lebih besar dari