ÌâÄ¿ÄÚÈÝ
ÇâµâËáÒ×±»Ñõ»¯£¨»¹ÔÐÔÇ¿£©£¬²»Äܳ¤ÆÚ´æ·Å£¬ÊµÑéÊÒÖƱ¸ÉÙÁ¿ÇâµâËáµÄ·½·¨ÊÇÏòµâµÄÐü×ÇÒºÖ⻶ÏͨÈëÁò»¯Ç⣨H2S£©£¬Æä·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ¡£ÇâµâËáÈôÏԻƺÖÉ«£¬ËµÃ÷ÈÜÓе⡣ÒÑÖª£º¢ÙFeÓëI2³£ÎÂÏ»¯ºÏ³ÉµÄFeI2Ϊ°×»ÒÉ«ÄÜÈÜÓÚË®µÄ¹ÌÌå¡£
¢ÚZnÓëI2ÓÃË®´ß»¯Éú³ÉµÄZnI2ΪˮÈÜÐÔÎÞÉ«¾§Ìå¡£
¢ÛCuÓëI2ÔÚ³£ÎÂÏ»¯ºÏÉú³ÉµÄCuIΪ°×É«ÄÑÈÜÓÚˮҲÄÑÈÜÓÚÇâµâËáµÄ¹ÌÌå¡£
Çë²Î¿¼ÉÏÃæ¢ÙÖÁ¢ÛËùÊöÎïÖʵÄijЩÐÔÖÊ£¬Ñ¡ÔñÒ»ÖÖÎïÖʼӵ½º¬µâµ¥ÖʵÄÇâµâËáÖУ¬ÒÔ³ýÈ¥µâµ¥ÖÊ£¬ËùÑ¡µÄÎïÖÊÊÇ¡£
H2S+I2==2HI+S¡ý Í·Û
½âÎö£ºHIµÄË®ÈÜÒºÊÇÇ¿ËáÐÔÈÜÒº£¬Òª³ýÈ¥ÇâµâËáÖеÄI2£¬ËùÑ¡ÓõÄÊÔ¼ÁÓ¦¸ÃÊÇÄܺÍI2·´Ó¦Éú³É³Áµí»òÆøÌ壬ÇÒ²»ÄܺÍHI·´Ó¦£¬×ÛºÏÌâ¸øÐÅÏ¢£¬Ö»ÓÐCu·ûºÏÒªÇó¡£
(8·Ö)ÑÇÏõËá(HNO2)ÊÇÒ»Öֱȴ×ËáÂÔÇ¿µÄÈõËᣬºÜ²»Îȶ¨£¬Ò×·¢Éú×ÔÉíÑõ»¯»¹Ô·´Ó¦¶ø·Ö½â¡£
(1)µÍÎÂÏ£¬½«µÈÎïÖʵÄÁ¿µÄNOºÍNO2ͨÈëË®ÖУ¬¿ÉÖƵÃHNO2£¬·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ__________________________________________________________.
(2)NO¼ÈÓÐÑõ»¯ÐÔÓÖÓл¹ÔÐÔ£¬ÆäÑõ»¯²úÎï»ò»¹Ô²úÎïÓëÈÜÒºµÄpHµÄ¹ØϵÈçϱíËùʾ£º
pH·¶Î§ | ´óÓÚ7 | СÓÚ7 |
²úÎï | NO | NO¡¢N2O¡¢N2ÖеÄÒ»ÖÖ |
¢ÙÔÚ¼îÐÔÌõ¼þÏ£¬NaNO2ÈÜÒºÓëNaClOÈÜÒº·´Ó¦µÄÀë×Ó·½³ÌʽΪ
_________________________________________________________.
¢ÚÈôHNO2ÓëÇâµâËᷴӦʱ°´ÎïÖʵÄÁ¿Ö®±È1¡Ã2½øÐУ¬ÇÒI£±»Ñõ»¯³ÉI2£¬Ôò²úÎïÖꬵªµÄÎïÖÊΪ__________(Ìѧʽ).
(3)ÔÚÀ䶳µÄNaNO2ÈÜÒºÖмÓÈë»òͨÈëÏÂÁÐÎïÖÊ£¬²»ÄÜÖƵÃHNO2µÄÊÇ________(ÌîÐòºÅ).
a£®Ï¡H2SO4¡¡¡¡ b£®Ï¡HCl c£®CO2 d£®SO2
(8·Ö)ÑÇÏõËá(HNO2)ÊÇÒ»Öֱȴ×ËáÂÔÇ¿µÄÈõËᣬºÜ²»Îȶ¨£¬Ò×·¢Éú×ÔÉíÑõ»¯»¹Ô·´Ó¦¶ø·Ö½â¡£
(1)µÍÎÂÏ£¬½«µÈÎïÖʵÄÁ¿µÄNOºÍNO2ͨÈëË®ÖУ¬¿ÉÖƵÃHNO2£¬·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ__________________________________________________________.
(2)NO¼ÈÓÐÑõ»¯ÐÔÓÖÓл¹ÔÐÔ£¬ÆäÑõ»¯²úÎï»ò»¹Ô²úÎïÓëÈÜÒºµÄpHµÄ¹ØϵÈçϱíËùʾ£º
pH·¶Î§ | ´óÓÚ7 | СÓÚ7 |
²úÎï | NO | NO¡¢N2O¡¢N2ÖеÄÒ»ÖÖ |
_________________________________________________________.
¢ÚÈôHNO2ÓëÇâµâËᷴӦʱ°´ÎïÖʵÄÁ¿Ö®±È1¡Ã2½øÐУ¬ÇÒI£±»Ñõ»¯³ÉI2£¬Ôò²úÎïÖꬵªµÄÎïÖÊΪ__________(Ìѧʽ).
(3)ÔÚÀ䶳µÄNaNO2ÈÜÒºÖмÓÈë»òͨÈëÏÂÁÐÎïÖÊ£¬²»ÄÜÖƵÃHNO2µÄÊÇ________(ÌîÐòºÅ).
a£®Ï¡H2SO4¡¡¡¡ b£®Ï¡HCl c£®CO2 d£®SO2
(8·Ö)ÑÇÏõËá(HNO2)ÊÇÒ»Öֱȴ×ËáÂÔÇ¿µÄÈõËᣬºÜ²»Îȶ¨£¬Ò×·¢Éú×ÔÉíÑõ»¯»¹Ô·´Ó¦¶ø·Ö½â¡£
(1)µÍÎÂÏ£¬½«µÈÎïÖʵÄÁ¿µÄNOºÍNO2ͨÈëË®ÖУ¬¿ÉÖƵÃHNO2£¬·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ__________________________________________________________.
(2)NO¼ÈÓÐÑõ»¯ÐÔÓÖÓл¹ÔÐÔ£¬ÆäÑõ»¯²úÎï»ò»¹Ô²úÎïÓëÈÜÒºµÄpHµÄ¹ØϵÈçϱíËùʾ£º
pH·¶Î§ |
´óÓÚ7 |
СÓÚ7 |
²úÎï |
NO |
NO¡¢N2O¡¢N2ÖеÄÒ»ÖÖ |
¢ÙÔÚ¼îÐÔÌõ¼þÏ£¬NaNO2ÈÜÒºÓëNaClOÈÜÒº·´Ó¦µÄÀë×Ó·½³ÌʽΪ
_________________________________________________________.
¢ÚÈôHNO2ÓëÇâµâËᷴӦʱ°´ÎïÖʵÄÁ¿Ö®±È1¡Ã2½øÐУ¬ÇÒI£±»Ñõ»¯³ÉI2£¬Ôò²úÎïÖꬵªµÄÎïÖÊΪ__________(Ìѧʽ).
(3)ÔÚÀ䶳µÄNaNO2ÈÜÒºÖмÓÈë»òͨÈëÏÂÁÐÎïÖÊ£¬²»ÄÜÖƵÃHNO2µÄÊÇ________(ÌîÐòºÅ).
a£®Ï¡H2SO4¡¡¡¡ b£®Ï¡HCl c£®CO2 d£®SO2
¢ñ£®Ï±íÊÇÖîôßÊÐÒ»°Ù³¬ÊгöÊ۵ġ°Ñ©ÌÎÅÆ¡±¼Óµâ¾«ÖÆÑεÄÓйØ˵Ã÷£º
²úÆ·±ê×¼ºÅ | GB5461-2000 |
Åä ÁÏ | ¾«ÖÆÑΡ¢µâËá¼Ø¡¢¿¹½á¼Á |
ÖÊÁ¿µÈ¼¶ | Ò»¼¶ |
º¬µâÁ¿ | (35¡À15)mg/kg |
ʳÓ÷½·¨ | ´ýʳƷÊìºó¼ÓÈëµâÑÎ |
´¢²Ø·½·¨ | ÃÜÅб£´æ¡¢·À³±·ÀÈÈ |
·Ö×°ÈÕÆÚ | 2008Äê10ÔÂ8ÈÕ |
¢ò£®ÏÂÃæÊÇijÍøÕ¾ÉÏ¿¯³öµÄÓйص⼰µâµÄ»¯ºÏÎïµÄһЩÐÅÏ¢£º
×ÔÈ»½çÖеâÖ÷ÒªÒԵ⻯ÎïºÍµâËáÑεÄÐÎʽ´æÔÚ¡£µâÔÚº£Ë®Öеĺ¬Á¿Éõ΢(5¡Á10-8£¥)£¬µ«º£ÑóÖÐijЩÉúÎïÈ纣´ø¡¢º£ÔåµÈ¾ßÓÐÑ¡ÔñÐÔÎüÊպ;ۻýµâµÄÄÜÁ¦£¬Òò¶ø¸Éº£ÔåÊǵâµÄÒ»¸öÖØÒªÀ´Ô´¡£ÈÕÇ°ÊÀ½çÉϵâÖ÷ÒªÀ´×Ô¼ØÀûÏõʯ£¬ÆäÖꬵâO.02£¥¡«1£¥£¬ÖÇÀûÏõʯÖеâÖ÷ÒªÒÔµâËáÄÆ(NaIO3)µÄÐÎʽ´æÔÚ¡£Í¨³£Çé¿öϵâÊÇÒ»ÖÖ×ϺÚÉ«¹ÌÌ壬Ò×Éý»ª£¬Ö»ÄÜÉÙÁ¿ÈÜÓÚË®µÃ×Ø»ÆÉ«µÄµâË®ÈÜÒº¡£µâÓöµí·Û(Ãæ·ÛµÄÖ÷Òª³É·Ö)»á³öÏÖÃ÷ÏÔµÄÀ¶É«¡£µâÀë×Ó(I-)¾ßÓÐÃ÷ÏԵĻ¹ÔÐÔ£¬¶ø¸ß¼Û̬µÄµâÔò¾ßÓнÏÇ¿µÄÑõ»¯ÐÔ¡£È磺
2Nal+3H2SO4+MnO2=2NaHSO4+MnSO4+2H2O+I2 (Ò»)
2NaIO3+5NaHSO3=2NaSO4+3NaHSO4+H2O+I2 (¶þ)
·´Ó¦(Ò»)ÊÇ´Óº£Ôå»ÒÖÐÌáÈ¡µâµÄÖ÷Òª·´Ó¦£¬·´Ó¦(Èý)ÊÇ´ÓÖÇÀûÏõʯÖÐÌáÈ¡µâµÄÖ÷Òª·´Ó¦¡£
¸ù¾ÝÒÔÉÏÐÅÏ¢£¬»Ø´ðÏÂÁÐÎÊÌ⣺
(1)·´Ó¦(Ò»)ÖÐNaI±» (Ìî¡°Ñõ»¯¡±»ò¡°»¹Ô¡±£¬ÏÂͬ)£»·´Ó¦(¶þ)ÖÐNaIO3ÊÇ ¼Á£¬ÈôÓÐ1.5mol NaIO3·¢ÉúÁË·´Ó¦£¬ÔòתÒƵĵç×ÓÊÇ mol¡£
(2)ÏÂÃæÊÇijͬѧÉè¼ÆµÄ£¬Ì½¾¿ÉÏÊö¡°Ñ©ÌÎÅÆ¡±¾«ÖÆÑÎÖÐÊÇ·ñÕæµÄº¬ÓеâÔªËصÄʵÑé¡£ÇëÄãÍê³É¿Õ°×²¿·Ö¡£
ʵÑéÃû³Æ£º ¢Ù ¡£
ʵÑéÄ¿µÄ£º1£®ÈÏʶµâËá¼ØÖеĵâÔªËØת±ä³Éµâµ¥ÖʵĻ¯Ñ§·´Ó¦
2£®ÈÏʶµâµ¥ÖʵļìÑé·½·¨
ʵÑéÓÃÆ·£ºÊԹܡ¢½ºÍ·µÎ¹Ü¡¢¡°Ñ©ÌÎÅÆ¡±¾«ÖÆÑΡ¢ÑÇÁòËáÇâ¼ØÈÜÒº¡¢µí·ÛÈÜÒº¡£
ʵÑé²½Ö裺
ʵÑé²½Öè | ʵÑéÏÖÏó | »¯Ñ§·½³Ìʽ»òʵÑé½áÂÛ |
1£®È¡¾«ÖÆÑÎÉÙÐíÓÚÒ»Ö§ÊÔ¹Ü ÖУ¬¼ÓÈëÊÊÁ¿µÄË®£¬Õñµ´ | ¹ÌÌåÔÚ Ë®ÖÐÈܽâ | ¡°Ñ©ÌÎÅÆ¡±¾«ÖÆÑÎÄÜÈÜÓÚË® |
2£®ÏòÉÏÊöÈÜÒºÖеμÓÊÊÁ¿µÄÑÇ ÁòËáÇâ¼ØÈÜÒº£¬Õñµ´ | ÈÜÒº±ä³É ×Ø»ÆÉ« | ¢Ú(Ìѧ·½³Ìʽ) |
3£®ÔÙÏòÉÏÊöÈÜÒºÖеμӵí·ÛÈÜ Òº£¬Õñµ´ | ¢Û | ¡°Ñ©ÌÎÅÆ¡±¾«ÖÆÑÎÖк¬ÓеâÔªËØ |
ÎÊÌâÌÖÂÛ£ºÎÒÊ¡µÄÎÂÖÝÓкܳ¤µÄº£°¶Ïߣ¬º£²úÆ··á¸»£¬º£²úÆ·Öлò¶à»òÉÙº¬ÓеâÔªËØ£¬¶øº£²úÆ·ÓÖÊÇÎÂÖÝÈ˵ÄÖ÷Òª¸±Ê³Æ·£¬ÄÇôÎÂÖÝÈ˵ÄʳÓÃÑÎÖÐÐèÒª¼ÓµâÂð?
²¢ËµËµÄãµÄÀíÓÉ¡£
¢Ü ¡£