Pāhare pāporo pākati pūmura. Te faaineineraa o ngā āhuatanga matū, me te tinana. tono

konurehu pākati pūmura konurehu hromovoloknisty ranei (ingoa ao: Kalium chromicum, Kaliumchromat, konurehu pākati pūmura) - ko te pūhui pararopi, tioata kōwhai o te pūnaha orthorhombic, wairewa i roto i te wai. E pā ana te reira ki tai o te waikawa chromic H2CrO4, i roto i te āhua noa e kore e tīari. I roto i te taonga konurehu pākati pūmura e whai ake tātai: CrK2O4

Me pēhea te ki te tiki pāhare pāporo pākati pūmura?

pāhare pāporo Hromovoloknisty whiwhi i roto i te maha o ngā huarahi:

1. Na chromium waikura pitihāoratanga konurehu chlorate (te tauhohenga e wahi i te pāmahana o te 500-700 nekehanga):

Cr2O3 (chromium waikura) + KClO3 (pāhare pāporo chlorate) + K2CO3 (konurehu pākawa waro) = 2K2CrO4 (pāhare pāporo pākati pūmura) + KCl (pāhare pāporo pūhaumāota) + 2CO2 (hau waikawa carbonic)

2. Na roto i te tātau te waikura chromium i roto i te konurehu waihā :

CrO3 (chromium waikura) + 2KOH (konurehu waihā) = K2CrO4 (pāhare pāporo pākati pūmura) + H2O (wai)

3. Na whāwehe o konurehu pākatirua pūmura i whakawera (kawea tauhohenga i roto i te pāmahana o te 500-600 nekehanga):

4K2Cr2O7 (konurehu pākatirua pūmura) = 4K2CrO4 (pāhare pāporo pākati pūmura) + 2Cr2O3 (chromium waikura) + 3O2 (hāora)

4. Ma te rongo ki te wairewa ero o te konurehu waihā ki te konurehu pākatirua pūmura :

K2Cr2O7 (konurehu pākatirua pūmura) + 2KOH (konurehu waihā) = 2K2CrO4 (pāhare pāporo pākati pūmura) + H2O (wai)

5. Ko te āhua o te kohuke onge i huaina e ko "tarapakait". hromovoloknisty te reira i pāhare pāporo koranu.

āhuatanga pākati pūmura matū pāhare pāporo:

1. I roto i te pāhare pāporo waikawa memeha hromovoloknisty tomo konurehu pākatirua pūmura, tona tātai K2Cr2O7. He tauira ko te tauhohenga e whai ake:

2K2CrO4 (pāhare pāporo pākati pūmura) + 2HCl (waikawa pūhaumāota diluted) = K2Cr2O7 (konurehu pākatirua pūmura) + 2KCl (pāhare pāporo pūhaumāota) + H2O (wai)

2. I roto i te te taha ki te waikawa kaha i te tauhohenga rerekē e wahi, hei tauira:

K2CrO4 (pāhare pāporo pākati pūmura) + 2HCl (waikawa pūmāota i roto i te puka takiwa,) K = (Cr (Cl) O3) (complexed chromium) + KCl (pāhare pāporo pūhaumāota) + H2O (wai)

3. I roto i te tauhohe ki te pāhare pāporo pākati pūmura waikawa hāngai whakaatu oxidizing āhuatanga wera. Kei te kawea tētahi tauira ko te tauhohenga e whai ake nei i roto i i te pāmahana o 90 nekehanga:

2K2CrO4 (pāhare pāporo pākati pūmura) + 16HCl (te waikawa pūhaumāota) = 2CrCl3 (chromium pūhaumāota) + 3Cl2 (rite te hau māota) + 4KCl (pāhare pāporo pūhaumāota) + 8H2O (wai)

kia tomo 4. Hromovoloknisty pāhare pāporo ki tauhohe utu. Hei tauira:

K2CrO4 (pāhare pāporo pākati pūmura) + 2AgNO3 (pākawa hiriwa) = Ag2CrO4 (pākati pūmura hiriwa, tīwharawhara) + 2KNO3 (pāhare pāporo pākawa)
K2CrO4 (pāhare pāporo pākati pūmura) + Hg2 (NO3) 2 (mēkuri pākawa) = Hg2CrO4 (tīwharawhara mēkuri pākati pūmura) + 2KNO3 (pāhare pāporo pākawa)

Ko te āhuatanga ōkiko o te pāhare pāporo pākati pūmura:

1. Ko te kiato ko te 2,732 g / cm3.
rewa 2. konurehu pākati pūmura i 968,3 ° C. I te pāmahana o 668 nekehanga tomo te wāhanga hexagonal whero - riro i tetahi tae - whero. Heoi, i runga i tautauā ka kōwhai ano.
3. Puka tioata kōwhai pūnaha rhombic.
4. No te reira ki te rōpū wāhi P-nam.
5. E pā ana ki te paramagnetic.
6. wairewa Poor i roto i te waihā ewaro, rewa i roto i te wai. Wairewa i roto i te Ethyl waipiro me te diethyl.
7. Ko te papatipu titiwha ko 194,19 g / mol.

āhuatanga optical o pāhare pāporo pākati pūmura:

Ko te taupū hakoko o te 1,74

Hea pāhare pāporo hāngai pākati pūmura?

1. whakamahia te ahumahi hiako te rite te kaihoko tanning. I roto i te tae o papanga whakamahia rite te waiwhakaū.
2. Kei te whakamahia te reira i rite te wāhanga o te hanganga kawehiko o te degreasing matū motuhake.
3. I brightener mō te ware pi me te hinu.
4. I roto i te kōtuitanga organic hei āpitihāora, hei tauira, i roto i te hanga o ngā waikano.
5. te wairewa konurehu hromovoloknisty ano whakamahia mō te faaineineraa o te hāora iahiko o hiriwa, me mo te irava o ngā hua i parahi, me te hiriwa alloys.
6. whakamahia rite te rongoa homeopathic i roto i te rongoa.
7. I roto i te taiwhanga taputapu ko te ranunga o rite buka o te waikawa pungatara kukū, me te otinga K2Cr2O7, kukū mua i roto i te matao.

konurehu pākatirua (te ingoa hangarau - Chrompick)

tohu te reira i tioata o te tae whero-karaka. No puka tioata, kua he kiato o 2,684 karamu ia henemita pūtoru, rewa ana i 397 nekehanga. decomposes I whakawera atu. Memehatanga i roto i te wai i te 20 nekehanga he rite ki te 12,48 karamu o te tote ia 100 karamu o te wai. Kei te whānui whakamahia konurehu pākatirua pūmura hei āpitihāora i roto i nga pyrotechnics, te ahumahi ōrite, me rite te kaiwhakahohe i hromametrii.