1. Uluhlu olubanzi lweeparamitha zokusebenza, isisombululo sebhafu esizinzile, kulula ukusilawula.
2. Ukhuseleko lokusingqongileyo, olungena-F, alunabungozi kwimpilo yabantu.
3. Ukuphucula ubulukhuni kunye nokukhanya kweeprofayili ze-aluminium emva konyango lokutywinwa.
FL-09 (Oluqilima) | FL-09 (ulwelo) | Amanzi adiyiniweyo 5~6g/L |
5~6g/L | 5~10g/L | Ibhalansi |
Ni+ | pH | Ubushushu | Ixesha | Ukusetyenziswa |
0.8~1.4g/L | 60±5℃ | 1μm/1.2min | 1 | 0.9~1.3kg/T |
1. Qinisekisa ukugxila kweNieveryday, yenze iguquguquke kancinci.
2. Lawula i-pH ngokudibanisa i-FL-09 (i-liquid) okanye i-dilute i-acetic acid, gcina ixabiso le-pH phakathi kwe-5.3 kunye ne-6.5.
3. Imibhobho yokufudumeza kufuneka ilungiswe kudonga lwangaphakathi lwebhafu hayi ezantsi, kungenjalo imvula iya kugquma isixhobo esiya kuchaphazela impembelelo yokufudumeza kwaye ayilungele ukucoca imvula.
4. Ukunciphisa ukungcoliswa kwesisombululo sokuhlambela, lawula umgangatho wamanzi kunye ne-pH yokuhlamba ngokungqongqo, i-pH ayikwazi ngaphantsi kwe-4.5.
I-Middle Temperature yokutywina i-Additive itywinwe nge-polybag, i-5kg net nganye kunye ne-4 polybags kwi-carton, i-20kg net nganye.Ikhuselwe ekukhanyeni kwindawo eyomileyo.
Isinki yokupholisha ubushushu obuphantsi--indlela yokuvavanya
Iirejenti ezifunekayo: 1N NaOH isisombululo esisemgangathweni ②1% phenolphthalein isalathisi ③ Potassium
Ukumiselwa komxholo we-nickel ion (Ni2 +).
1. Amanyathelo ovavanyo.
Zoba ngokuchanekileyo i-10mL yolwelo lwe-sink kwi-250mL yebhika engunxantathu, yongeza i-50mL yamanzi, i-10mL (pH=10) ye-chloramine buffer, umlinganiselo omncinci we-1% ye-violetine, kwaye ungcangcazele kakuhle.I-Titrate kunye ne-0.01mol / L isisombululo esiqhelekileyo se-EDTA de isisombululo sitshintshe ukusuka kumthubi ukuya kwimfusa njengendawo yokuphela, kwaye urekhode umthamo wokusetyenziswa V.
2. Ukubala: Nickel(g/L)=5.869 × V × C
V: umthamo wesisombululo esiqhelekileyo se-EDTA esisetyenziswe kwiimililitha (mL)
C: Uxinzelelo lwe-molar lwesisombululo esisemgangathweni se-EDTA (mol/L)
Ukumiselwa komxholo we-fluoride ion (F-).
1. Ukulungiswa kwesisombululo se-F-standard
① Isisombululo esisemgangathweni kunye ne-F-concentration ye-5g / L: Ukulinganisa ngokuchanekileyo i-11.0526g NaF (I-Analytical Reagent, eyomileyo kwi-oven kwi-120 ° C ye-2h, igcina kwi-deiccator kunye nebhotile yokulinganisa ukusetyenziswa, ngokuchanekileyo kwi-0.0001g xa ulinganisa) ukunyibilika Kwixabiso elincinci lamanzi adibeneyo, udlulisele kwi-flask ye-volumetric ye-1000mL, nciphisa uphawu, kwaye ugubungele kakuhle.
② Isisombululo esisemgangathweni kunye ne-F-concentration ye-0.1g / L: I-Pipette 10mL yesisombululo esisemgangathweni kunye ne-F-concentration ye-5g / L kwi-flask ye-volumetric engentla kwi-flask ye-volumetric ye-500mL, i-dilute kwi-mark, kwaye igcine kwibhotile ye-polyethylene.
③ Lungiselela izisombululo ezisemgangathweni kunye ne-F-concents ye-0.2-1 g/L njengoko kuchazwe ngasentla.
2. Ukulungiswa kweTotal ye-Ionic Strength Adjusting Buffer Solution (TISAB)
Thatha malunga ne-500mL yamanzi adibeneyo kwaye uwafake kwi-beaker yeglasi ecocekileyo eyi-1L, yongeza i-57mL ye-glacial acetic acid, uze wongeze i-58.5g ye-sodium chloride kunye ne-12g ye-sodium citrate ukulungisa nokunyibilika ngokupheleleyo, kwaye usebenzise i-sodium hydroxide ecocekileyo ngokuhlalutya. lungelelanisa i-pH=5.0~5.5, dilute kwi-1L ngamanzi adibeneyo.
2. F- Umzobo oqhelekileyo wegophe
① I-Pipette 2mL yesisombululo esisemgangathweni esinogxininiso lwe-0.1g/L kwibhekile yeplastiki eyi-100mL, emva koko wongeze i-20mL isisombululo sesithinteli se-TISAB, faka umazibuthe, ushukume kwi-stirrer yamagnetic, faka i-electrode ye-oksijini kunye ne-electrode yereferensi ngokulandelelana, Emva kokuvuselela i-electromagnetic for 3min, yima 30s, kwaye ufunde equilibrium enokubakho Ex;
②Sebenzisa indlela efanayo yokulinganisa ixabiso elinokubakho le-Ex yesisombululo esisemgangathweni esinogxininiso lwe-F yi-0.2~1g/L, kwaye uhlele ugxininiso ukusuka phantsi ukuya phezulu.Kwiphepha legrafu, zoba i-curve esemgangathweni ye-EF kunye ne-E enokubakho njengolungelelaniso kunye nogxininiso lwe-F njenge-abscissa.
Ngokuchanekileyo i-pipette i-20mL yolwelo lwe-sinki kwibhika eyi-100mL, yongeza i-20mL yesithinteli samandla e-ayoni sisonke (TISAB), ushukume kwi-magnetic stirrer kangange-3min, kwaye ulinganise ngokuthe ngqo umahluko onokubakho we-mv nge-electrode ye-fluorine.Fumana isiqulatho sefluorine esihambelanayo m kumxholo wefluorine-umehluko onokwenzeka umahluko osemgangathweni wedayagramu ye-electrode.
Ilongezo lokutywina lobushushu eliphakathi | Nickelion | PH | ubushushu |
0.8-1.4g/L | 5.3 ~ 6.5 | 60±5℃ |