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zhenwuhuang

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»ÆÍª: ½ð±Ò+1, лл»ØÌû½»Á÷ 2013-04-04 21:27:40
ľ³½: ½ð±Ò+1 2013-04-08 13:25:10
7Â¥2013-04-04 11:23:58
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userhung

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ľ³½: ½ð±Ò+2 2013-04-08 13:25:03
17Â¥2013-04-04 22:35:18
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mzhyan

ÖÁ×ðľ³æ (ÎÄ̳¾«Ó¢)


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ľ³½(½ð±Ò+1): лл²ÎÓë
»ÆÍª: ½ð±Ò+1, лл»ØÌû½»Á÷ 2013-04-04 21:27:08
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4Â¥2013-04-04 11:11:15
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5Â¥2013-04-04 11:21:20
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zhenwuhuang

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8Â¥2013-04-04 11:24:27
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syhorchid

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ľ³½(»ÆÍª´ú·¢): ½ð±Ò+1, лл»ØÌû½»Á÷ 2013-04-04 21:27:52
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10Â¥2013-04-04 11:53:00
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wangyifu1992

Òø³æ (СÓÐÃûÆø)


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666666
11Â¥2013-04-04 12:08:27
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»ÆÍª

ľ³æ (ÖøÃûдÊÖ)


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ºìÖÛÁ÷ÐÇ: ½ð±Ò+1, »¶Ó­À´ÉúÎï²ÄÁϰå¿éÓ¦Öú½»Á÷ 2013-04-06 07:21:25
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14Â¥2013-04-04 21:28:34
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jeangong

ľ³æÖ®Íõ (ÎÄѧ̩¶·)


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fool_proof: ½ð±Ò+1, »¶Ó­³£À´ÉúÎï²ÄÁϰæÓ¦Öú½»Á÷ 2013-04-08 16:50:55
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19Â¥2013-04-04 23:43:45
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guodanpaper

ľ³æ (ÖøÃûдÊÖ)


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23Â¥2013-04-05 00:28:36
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klosexs1987

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ľ³½(½ð±Ò+1): лл²ÎÓë
fool_proof: ½ð±Ò+1, »¶Ó­³£À´ÉúÎï²ÄÁϰæÓ¦Öú½»Á÷ 2013-04-08 16:51:44
I think hemicellulose can be dissolved in strong alkaline solvents, such as sodium hydroxide aqueous solvent. I didn't do any experiments to prove that, however, I did read some literature reporting that cellulose can be purified from pulps by dissolving them in sodium hydroxide solvent, to further remove the hemicellulose segments in the pulps. Hereby, wood cellulose can just be  swollen in sodium hydroxide, while hemicellulose can be dissolved.
it's just my opinion~~~
24Â¥2013-04-05 06:33:46
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ľ³½

½ð³æ (ÕýʽдÊÖ)


ÒýÓûØÌû:
4Â¥: Originally posted by mzhyan at 2013-04-04 11:11:15
Ç¿¼îÊÇ¿ÉÒԵİÉ

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26Â¥2013-04-08 13:26:38
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ľ³½

½ð³æ (ÕýʽдÊÖ)


ÒýÓûØÌû:
14Â¥: Originally posted by »ÆÍª at 2013-04-04 21:28:34
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лл
27Â¥2013-04-08 13:27:09
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ľ³½

½ð³æ (ÕýʽдÊÖ)


ÒýÓûØÌû:
24Â¥: Originally posted by klosexs1987 at 2013-04-05 06:33:46
I think hemicellulose can be dissolved in strong alkaline solvents, such as sodium hydroxide aqueous solvent. I didn't do any experiments to prove that, however, I did read some literature reporting  ...

thanks,sometimes hemicellulose looks like to be ¡°dissolved¡± in sodium hydroxide,while it looks like stripe or bulk of something.
28Â¥2013-04-08 13:32:04
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Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
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29Â¥2023-04-25 17:28:11
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2013-04-04 11:34   »Ø¸´  
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