Inter Standard Yotsimikiza ya Orfac Stulphidedes mu adyo ku China

Muyezo uwu ndi wofanana ndi bungwe lapadziko lonse lapansi kuti muchepetse (ISO) 5567-19822 "Kutsimikiza kwa osinthika okhazikika arfic sulfidedes mu madzi adyo".

Chidule 1 cha njirayo

Zitsanzo zanyowa m'madzi, Ethanol imawonjezeredwa, osasunthika adotololfur mankhwala amasungunuka, ndipo zowonjezera mu nitric acid.

2 ma reagents

2.1 nitric acid (mphamvu yapadera 1.42)
2.2 ethanol 95% (v / v)
2.3 Madzimadzi
2.4 nitric acid 10% (v / v)
2.5 ammonium hydroxide 10% (v / v)
2.6 0.1000mol / l siliva nitrate woyenera yankho, Kukonzekera ndi Kukonzekera kwa GB 601-1977
2.7 0.1000mol / l ammonium Thiocyuanate Social Social Solution, olemera ammonium Thiocynate 8g Sungunulani mu madzi a 1l. Calbibtion
2.8 Ferric ammonium sulfate chisonyezo, odzakwaniritsidwa.

3 Chida

Pakuwunikira, makamaka zigawani za distillatus ziyenera kupewedwa kulumikizana ndi mkuwa kapena mphira, zida zagalu ya distillatus ndizolumikizana pakamwa.
3.1 Pulogalamu ya distillation (onani chithunzi) ndi kabokosi kambiri ka 250ml
3.2 250 ml pansi-ntzing slatsks, zokhoza kugwiritsidwa ntchito pokhudzana ndi Refluxser.
3.3 Nthawi zonse madzi osamba, okhoza kuwongolera kutentha mpaka 37 ± 1 ° C.
3.4 g2 kapena g3 galasi lagalasi.
3.5 Pampu ya vatuum kapena pampu yamadzi.
3.6 Phukusi loyenerera la PH, lomwe limatha kuwonetsa pa PH = 7 ± 0,1. Allynat sululfar distillation.

4 njira zowunikira

4.1 zokopa
Mafuta a adyo amasungunuka adapangidwa kukhala zidutswa za ma cufoow ndipo kenako kenako ma granules adyo ndi adyo amasamba ndi adyo adasankhidwa mwachindunji.
4.2 kukula kwake
Yangulirani pafupifupi 10G, molondola 0.101g.
4.3 Kutsimikiza
4.3.1 Kudzuka
Ikani chiwonetsero chochotseka mu flask (3.1) ndi 100 ° C madzi a 40 ° madzi agalasi ndi galasi lozizira kwambiri, ndikuwakhazika mu kutentha kwa madzi 37 ± 1 ° 1 ± 1h .
4.3.2 Kulima
Pambuyo powonjezera 20ml ya ethanol (2.2) ndi 2ml ya madzi amadzimadzi (3.1), kulumikiza mwachangu apyaratus (onani Chithunzi), ndikuwonjezera 10ml wa ma ammonium hydroxide ( 3.2) kotero kuti otsika otsika a condenser amayang'aniridwa mu ammonium hydroide.
Tenthetsani flask (3.1) Kuti musiye distillation mutapeza 60 ml ya distillate, sambani motsutsana ndi madzi, ndikusonkhanitsa kuchapa mu botolo lopindika.
Kutentha kuyenera kulamulidwa panthawi yotsika kuti musapumitse mafuta agalu komanso kulola kuti kuchuluka kwa distillation kupezeka.
4.3.3 kuthiratu
Kusinthanitsa (a) mu botolo la masitepe ndi nitric acid (2.4) ndikukhazikika pa Ph pa 7 ± 0,1 monga pepala loyenerera la PH. Onjezani molondola 20.00 ml ya muyezo yankho la siliva nitrate (2.6) mpaka distillate (a) ndikutenthetsa mu madzi osamba ku Reflux kwa 1 h. Kugawika (a) kumakhazikika ku kutentha kwa chipinda ndikusefukira ndi kupondaponda ndi kapulasi yagalasi, (3. ) Anasonkhanitsidwa. Onjezani 5 ml ya nitric acid (2.1) ndi madontho ochepa a anzimu a ammonium solphator (2) ofiira ndi ofiira ndikusunga kwa mphindi 0,5.

Kuwerengera Kwazotsatira

5.1 Njira yowerengera
Zomwe zimakhudzidwa ndi zinthu zosasunthika mu nyemba zopepuka zomwe zimafotokozedwa chifukwa cha kuchuluka kwa ma sulfur amaperekedwa ndi njira yotsatirayi: mcvcx10005.0, =
Komwe: X - peresenti zomwe zili mu votilelmosulfur zimapanga madzi adyo,%;
C1 - Kukhazikika kwa siliva nitrate woyenera yankho (2.6), mol / l;
C2 - Kukhazikika kwa ammonium Thiocyunanate njira yothetsera vuto (2.7), Mol / l;
V - voliyumu ya ammonium Thiocynanate Njira yankho, ml;
0.057 - magalamu owotcha sulfur [(Ch2ch = Ch2) 2s] ofanana ndi 1.00 ml ya v = 1000 mot / l;
m - kukula kwa fanizo g. Zotsatira zake zidzaperekedwa ku malo awiri.
5.2 Kulondola kwa njirayo
Kwa wothandizira yemweyo, kusiyana pakati pa zotsatira ziwiri zotsatizana sikuyenera kupitirira 5 peresenti ya phindu lake, kubwereza kutsimikiza.
5.3 Lipoti loyesera
Tengani nthabwala yamphamvu yamphamvu ziwiri.

Chibadwa:

Muyezo uwu umafunsidwa ndi Bureau wa chakudya chosadodometsa cha ntchito ya malonda a China.
Muyezo uwu ndi womwe umayang'anira kukonzedwa ndi Beijing Chakudya Chosafufuza.
Chidindo chachikulu cha chingwe chokhazikika chofananachi, Liu Zhenfang, Li Iidong, kubwerera ku Jiuzhen.
Ntchito zamalonda za Republic of China 1988-02-29 ivomerezedwa 1988-0-0-0-0.