Paura pāhare pākawa iodate mō te reagent grade rongoā kai
Whakaahuatanga Hua
Ingoa Hua: Potassium iodate
Te Parakore: 99.5%;
CAS:7758-05-6
MF: IKO3
MW:214
EINECS:231-831-9
Te ira rewa: 560 °
Āhua: Paura mā, paura mā-parauri rānei/totoka tioata
He tote whai rawa i te iodine te pāhare pākawa waro, ko tōna tauira KIO3. I ngā āhuarangi wera me te haumākū, ka waikura te kohu iodine nā te āhua waikura o te pāhare pākawa waro. Ki te whakatauritea ki te pāhare pākawa waro, he pumau ake te pāhare pākawa waro, ā, he roa ake tōna oranga. He kaha ki te aukati i te mimiti o te iodine irirangi e te repe tairoiti.
Ngā Āhuatanga Hua
Ko te pāhare pākawa iodate he tioata monoclinic kore tae, he paura tioata mā rānei. Kāore he kakara. Ka wairewa ki te wai, ki te waikawa waimeha, ki te ethylenediamine, ki te ethanolamine, me ngā otinga wai o te pāhare pākawa iodine; he paku wairewa ki te hauhā whanariki wai; kāore e wairewa ki ngā waipiro me te haukini.
He tioata kore tae, he paura mā rānei; he hanganga monoclinic; he mātotoru 3.90 g/cm3; he pumau i ngā pāmahana noa; ka rewa i te 560°C me te pirau ā-wāhanga, ka tukuna te hāora; he wairewa ngāwari ki te wai matao; 4.74 g/100mL i te 0°C; he wairewa nui ake i te wai kohua 32.3 g/100mL i te 100°C; ka wairewa ki te otinga pāhare pāporo iodide; kāore e wairewa ki te waipiro me te haukini wai.
Tono
1) Ko te Potassium Iodate he pūtake iodine i hangaia mā te tauhohenga o te iodine ki te potassium hydroxide. He paura tioata tēnei e pumau ake ana i te iodide. Ko tōna wairewatanga he 1 karamu i roto i te 15 ml o te wai. Ka whakamahia hei whakapai ake i te paraoa pokepoke tere; ka whakamahia me te potassium bromate hei matū whakahāngai hei whakarerekē i te pūmua i roto i te paraoa taro e whakatairanga ana i te rahinga me te āhua o te taro. Ka whakamahia i roto i ngā kai tunua.
2) He matū whakahāngai kaha te pāhare pākawa waro, ka taea te whakamahi i roto i te whakamātautau i ngā matū rongoā maha, hei tauira: te benzalkonium chloride, te cetrimide, te hydralazine hydrochloride, te pāhare pākawa waro, te phenylhydrazine hydrochloride, te semicarbazide hydrochloride me ērā atu. I raro i ngā tawhā whakamātautau e tika ana, ka tauhohe te pāhare pākawa waro ki ngā iodide me te iodine. Heoi, he mea whakamere ki te kite i konei ka taea te whakahaere i ngā inenga iodate i te aroaro o ngā waikawa waro kua kukū, te waipiro me te tini o ngā matū waro kē atu.
Ko ngā tikanga whakaiti-waikura me te pāhare pāporo iodate e hangai tonu ana ki te hanganga o te iodine monochloride (ICl) i roto i te reo o te waikawa hauwaiora kaha.
3) Ka taea te tāpiri i te iodine ki te tote hei pāhare pākawa iodide (KI) hei pāhare pākawa iodate rānei (KIO3). Nā te mea he pumau ake te KIO3 i te aroaro o ngā poke tote, te haumākū, me te takai pūngāwerewere, koinei te āhua e taunakitia ana.
Ko te pāhare pākawa iodate, e hangaia ana hei hua tuarua, ka whakaitihia e te waro whakahohe. Ka purea te hua mā te whakatiotanga mai i te wai. Waihoki, ka taea te tukatuka i te pāhare pākawa (II) iodide, i hangaia mā te whakamahi i te paura rino me te iodine, ki te pāhare pākawa waro hei whiwhi i te pāhare pākawa iodide. Ka taea te whakarite i te pāhare pākawa iodide tino parakore mā te tauhohenga o te pāhare pākawa waro me te waikawa hydriodic.
Ngā mōhiohio kawe waka
Tau UN: 1479
Akomanga Tūpono: 5.1
Rōpū Tākai: II
WAEHERE HS: 28299080
Ngā Hua e taunaki ana
Whakatakotoranga
| Tūemi tātaritanga | Paerewa | Hua o te tātaritanga |
| Whakaahuatanga | Paura mā, mā-parauri rānei/totoka tioata | Ngā ritenga |
| Ngaronga i te Whakamaroke% | ≤0.5% | 0.03% |
| I(%)≤ | 0.0019% | <0.002% |
| CLO3(%)≤ | 0.01% | <0.01% |
| SO4(%)≤ | Ngā ritenga | Ngā ritenga |
| Te konganuku taumaha (Pb)(%)≤ | <0.001% | <0.001% |
| PH | 5~8 | 6.0 |
| Hei(%)≤ | ≤0.0003% | <0.0003% |
| Whakamātautau | KIO3≥99.0% | 99.5% |
