Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 691  |  »Ø¸´: 4
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£

GT.

½ð³æ (СÓÐÃûÆø)

[½»Á÷] Çë½Ì£ºNaHµÄÐÔÖÊ

ÇëÎÊÄÇλ´óϺ֪µÀNaHµÄÐÔÖÊ£¬ºÍÔÚÓлúºÏ³ÉÉϵÄÓ¦Óã¿
ÍøÉÏÕâ·½ÃæµÄ×ÊÁÏÌ«ÉÙ¡£Ð»Ð»£¡

[ Last edited by linweiguo0 on 2007-4-16 at 19:36 ]
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

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

zhangquee

ÖÁ×ðľ³æ (ÎÄ̳¾«Ó¢)

°®»¨²»²É»¨£¬äìÈ÷²»ÂÒÈ÷£¡

¡ï ¡ï
linweiguo0(½ð±Ò+2):thank u
Ç¿¼î, pka 35 µÄÑù×Ó ³£ÓÃ60%º¬Á¿µÄ£¬¶àÓÃÀ´°ÎÇ⣬Éú³ÉÑõ¸º£¬Ì¼¸ºÀë×ÓʲôµÄ.ÓöË®¾çÁÒȼÉÕ
CCD2004ÉϹØÓÚÕâ¸ö¶«Î÷µÄÄÚÈÝ:
Molecular Formula: HNa
Molecular Weight: 23.998
Accurate Mass: 23.997592
Percentage Composition: H 4.20%; Na 95.80%
General Statement: NaCl struct.
Source/Synthesis: Synth. by direct reaction of the elements at elevated temps.
Use/Importance: Commercially available as a dispersion in mineral oil or as a solid. Reducing agent in org. chem. Used in synth. of NaBH4
Physical Description: Moisture-sensitive white powder
Other Data: Dec. on heating into Na and H2. Reacts violently with H2O  NaOH + H2.  Hf 56.44 kJ mol1; Gf 33.55 kJ mol1; S 40.0 J K1 mol1
Hazard  Toxicity: Can react violently on addn. to H2O, also reacts violently or explosively with a variety of substances. Highly destructive to all tissues
һЦ¶ø¹ý~
2Â¥2007-04-16 19:37:40
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ò½Éú

Í­³æ (СÓÐÃûÆø)

Ô޳ɣ¡£¡£¡
3Â¥2007-04-19 23:16:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

minisung

½ð³æ (ÕýʽдÊÖ)

¼«Ç¿»¹Ô­ÐÔ¡¡¡¡²»¿ÉÓÃÓÚË®ÈÝÒ×Ìåϵ
ÎÒ·ÅÏÂÁË×ðÑÏ·ÅÏÂÁ˸öÐÔ·ÅÏÂÁ˹ÌÖ´¿É¾ÍÊǷŲ»ÏÂÄã¿ÉÊÇÏÖÔÚÄã...ÔÚÄÄÀ£¿
4Â¥2007-04-21 10:00:35
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ GT. µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 297¹¤¿Æµ÷¼Á? +3 ºÓÄÏũҵ´óѧ-ÄÜ 2026-04-13 3/150 2026-04-13 21:36 by ľ×Ó¾ý1218
[¿¼ÑÐ] 284Çóµ÷¼Á +15 ÈÃÎÒÉϰ¶°É°¢Î÷ 2026-04-09 15/750 2026-04-13 21:08 by gretl
[¿¼ÑÐ] Çóµ÷¼Á +11 ºÎÆøÕý 2026-04-13 12/600 2026-04-13 20:14 by ѧԱJpLReM
[¿¼ÑÐ] 302Çóµ÷¼Á +10 Ò×£¡? 2026-04-13 10/500 2026-04-13 19:04 by lbsjt
[¿¼ÑÐ] 0854µ÷¼Á +10 ³¤¹­°Á 2026-04-12 13/650 2026-04-13 17:32 by ³¤¹­°Á
[¿¼ÑÐ] 297¹¤¿Æ£¬Çóµ÷¼Á? +13 ºÓÄÏũҵ´óѧ-ÄÜ 2026-04-12 13/650 2026-04-13 14:12 by dingyanbo1
[¿¼ÑÐ] 290Çóµ÷¼Á +18 ¿Â»´È» 2026-04-12 20/1000 2026-04-13 12:56 by cyh¡ª315
[¿¼ÑÐ] ²ÄÁϹ¤³Ì085601£¬270Çóµ÷¼Á +38 @ASDF1234 2026-04-08 41/2050 2026-04-13 12:53 by ÕÅzhihao
[¿¼ÑÐ] ÉúÎïѧµ÷¼Á +11 СȽҪŬÁ¦ 2026-04-10 13/650 2026-04-13 11:46 by µç»¯Ñ§¼°´ß»¯
[²ÄÁϹ¤³Ì] ²ÄÁϵ÷¼ÁÍÆ¼ö +9 µ°¸âx2 2026-04-07 9/450 2026-04-13 09:07 by lhj2009
[¿¼ÑÐ] ÉúÎïѧ308Çóµ÷¼Á +5 ÏàÐűػá¹ââÍòÕ 2026-04-11 5/250 2026-04-12 18:14 by zhouxiaoyu
[¿¼ÑÐ] 267Çóµ÷¼Á +8 ÔÙæҲҪ³Ô·¹°¡ 2026-04-09 8/400 2026-04-11 21:42 by cfdbai
[¿¼ÑÐ] 269Çóµ÷¼Á +11 °¡°¡ÎÒÎÒ 2026-04-07 11/550 2026-04-11 16:45 by vgtyfty
[¿¼ÑÐ] 263ÄÜÔ´¶¯Á¦×¨Ë¶Çóµ÷¼Á +3 ¼Ó´óºÅ·¹ºÐ´ü 2026-04-10 3/150 2026-04-10 22:23 by 286640313
[¿¼ÑÐ] ½­ËÕ´óѧ ¹¤¿Æµ÷¼Á ¼ñ© +3 Evan_Liu 2026-04-09 5/250 2026-04-10 10:22 by Evan_Liu
[¿¼ÑÐ] 085404£¬285·ÖÇóµ÷¼Á +12 Þ±Þ±¿¼ÑÐ 2026-04-07 14/700 2026-04-09 23:10 by parmtree
[¿¼ÑÐ] 332£¬085601Çóµ÷¼Á +12 ydfyh 2026-04-09 14/700 2026-04-09 17:28 by wp06
[¿¼ÑÐ] 085801 ×Ü·Ö275 ±¾¿ÆÐÂÄÜÔ´ Çóµ÷¼Á +8 bradoner 2026-04-08 9/450 2026-04-09 13:43 by onlyÖÜ
[¿¼ÑÐ] 286Çóµ÷¼Á +19 Faune 2026-04-08 20/1000 2026-04-09 08:36 by ŶŶ123
[¿¼ÑÐ] 307Çóµ÷¼Á +3 Youth@@ 2026-04-07 3/150 2026-04-07 09:25 by СºÚ²»ÅÂÄÑ
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û