²é¿´: 1873  |  »Ø¸´: 5

rgs8028

гæ (СÓÐÃûÆø)

[ÇóÖú] ÒÒËáÒÒõ¥ÍÑË® ÒÑÓÐ5È˲ÎÓë

Çë½Ì¸÷λ³æÓÑ£¬¹¤ÒµÉú²úÖк¬Ë®3%×óÓÒµÄÒÒËáÒÒõ¥ÔõôÍÑˮЧ¹ûºÃ£¿
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

Ïò¸÷λ³æÓÑѧϰ
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

luxiuqiang

ÖÁ×ðľ³æ (ÖªÃû×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
These can be removed by washing with aqueous 5% Na2CO3, then with saturated aqueous CaCl2 or NaCl, and drying with K2CO3, CaSO4 or MgSO4. More efficient drying is achieved if the solvent is further dried with P2O5,
CaH2 or molecular sieves before distillation. CaO has also been used.
2Â¥2014-01-24 11:08:58
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ïð½ºÈË

ÈÙÓþ°æÖ÷ (ÎÄ̳¾«Ó¢)

ÓÅÐã°æÖ÷ÓÅÐã°æÖ÷ÓÅÐã°æÖ÷

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÊÔÊÔÓÃCaCl2À´ÐγɽᾧˮºÏÎïÀ´³ýË®
3Â¥2014-01-25 10:02:58
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ºúµ·

ľ³æÖ®Íõ (ÎÄ̳¾«Ó¢)

ºýÀïºýÍ¿

ÎÄÏ׽ܳö¹±Ï×

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Â¥Ö÷¿ÉÒÔʹÓÃ4A»ò5A·Ö×Óɸ½øÐÐÎü¸½À´ÍÑË®£¬ÎÒÒÔǰ¾­³£Óõġ£
Éϵ۵ÄÉùÒôÊÇÎÞ·¨¾Ü¾øµÄ
4Â¥2014-01-25 10:25:59
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

qq990611381

½ð³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÎÒÒÔǰÓùý£¬ÏÈÓÃÎÞË®ÁòËáÄÆ³ýÈ¥´ó²¿·ÖË®£¬È»ºóÔÙ¼ÓÈë·ÖÎöɸ£¬N2±£»¤·ÅמͺÃ

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
5Â¥2014-01-25 10:47:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

woganggan

½ð³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Ò»°ãµÄ¸ÉÔï¼Á ¶¼¿ÉÒÔ
I-believe-I-can-touch-the-sky£¡
6Â¥2014-01-25 10:58:02
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ rgs8028 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 085602 289·ÖÇóµ÷¼Á +8 WWWÎ÷Î÷¸¥Ë¹ 2026-03-24 8/400 2026-03-26 16:33 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] 265Çóµ÷¼Á +13 ÁºÁºÐ£Ð£ 2026-03-19 15/750 2026-03-26 16:21 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÀí£¬ÊýÒ»Ó¢Ò»285ÇóAÇøµ÷¼Á +4 AZMK 2026-03-25 6/300 2026-03-26 16:12 by ÍõСǷi
[¿¼ÑÐ] Ò»Ö¾Ô¸ÏÃÃÅ´óѧ»¯Ñ§Ñ§Ë¶307Çóµ÷¼Á +6 y7czhao 2026-03-26 6/300 2026-03-26 15:42 by zyxyz0804
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤¿¼Ñе÷¼Á +10 ‹üÈA 2026-03-22 10/500 2026-03-26 15:40 by zzll406
[¿¼ÑÐ] 315·ÖÇóµ÷¼Á +5 26¿¼ÑÐÉϰ¶°æ26 2026-03-26 5/250 2026-03-26 12:11 by laoshidan
[¿¼ÑÐ] 321Çóµ÷¼Á +3 è±Óñ~~ 2026-03-25 3/150 2026-03-25 19:07 by Zhanglab-TJU
[¿¼ÑÐ] 284Çóµ÷¼Á +15 Zhao anqi 2026-03-22 15/750 2026-03-25 12:51 by wht0531
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +3 iwinso 2026-03-23 3/150 2026-03-25 11:29 by greychen00
[¿¼ÑÐ] BÇø¿¼Ñе÷¼Á +4 yqdszhdap£­ 2026-03-22 5/250 2026-03-25 08:51 by baoball
[¿¼ÑÐ] ÉúÎïѧѧ˶Çóµ÷¼Á +7 СÑò˯×ÅÁË? 2026-03-23 10/500 2026-03-25 02:24 by Çå·ç·÷Ñï¡£ m
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á£¬Çóµ¼Ê¦ÊÕ +7 ÌìÌìºÃÔËÀ´Éϰ¶° 2026-03-24 7/350 2026-03-24 20:26 by peike
[¿¼ÑÐ] 306Çó0703µ÷¼ÁÒ»Ö¾Ô¸»ªÖÐʦ·¶ +10 Ö½Óãly 2026-03-21 11/550 2026-03-24 17:22 by qingfeng258
[¿¼ÑÐ] Çóµ÷¼Á +5 ÁÖ֮Ϧ 2026-03-24 5/250 2026-03-24 17:16 by dick_runner
[¿¼ÑÐ] 307Çóµ÷¼Á +3 ÓàÒâÇä 2026-03-21 6/300 2026-03-24 15:03 by ÓàÒâÇä
[¿¼ÑÐ] Ò»Ö¾Ô¸»ª¶«Àí¹¤´óѧ081700£¬³õÊÔ·ÖÊý271 +5 kotoko_ik 2026-03-23 6/300 2026-03-24 10:29 by ѧÊõ°áשer
[¿¼ÑÐ] 327Çóµ÷¼Á +5 prayer13 2026-03-23 5/250 2026-03-23 22:11 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] Çóµ÷¼ÁÒ»Ö¾Ô¸º£´ó£¬0703»¯Ñ§Ñ§Ë¶304·Ö£¬Óдó´´ÏîÄ¿£¬Ëļ¶Òѹý +6 ÐÒÔËÁ¨Á¨ 2026-03-22 10/500 2026-03-22 20:10 by edmund7
[¿¼ÑÐ] 330Çóµ÷¼Á0854 +3 assdll 2026-03-21 3/150 2026-03-21 13:01 by ²«»÷518
[¿¼ÑÐ] Çóµ÷¼Á +3 @taotao 2026-03-20 3/150 2026-03-20 19:35 by JourneyLucky
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û