ʻAkika ʻOxalic CAS68603-87-2
kikoʻī
| MEA | NĀ KIKOʻĪ |
| helehelena | Wai moakaka keʻokeʻo |
| Kiko heheʻe | 189.5°C (dec.)(lit.) |
| Kikowaena paila | 337.5℃[ma 101 325 Pa] |
| ka nui o ka paʻa | 0.99 g/mL ma 25 °C |
| Ka nui o ka mahu | 4.4 (vs ea) |
| Kaomi mahu | ＜0.01mmHg（20℃) |
| Ka helu ʻakika (pKa) | 4.43[ma 20℃] |
| Ka hiki ke hoʻoheheʻe ʻia i ka wai | 100g/L ma 25℃ |
| Ka palena hōʻike | ACGIH: TWA 1 mg/m3; STEL 2 mg/m3 |
| LogP | 0.162 ma 25 ℃ |
| HOPENA | Kūlike nā hopena me nā kūlana o ka ʻoihana |
Hoʻohana
ʻO ka waikawa oxalicʻO ka hopena maʻamau he hopena waikawa oxalic me kahi ʻike pololei a hoʻohana nui ʻia i nā kahua e like me ka loiloi kemika, ka hana ʻoihana, a me ka noiʻi ʻepekema. ʻO nā ʻano hana noi nui penei:
Ka Nānā Kemika a me ka Hoʻoholo ʻana
- Titration Waikawa - Kumu: ʻO ka waikawa Oxalic kahi waikawa nāwaliwali dibasic hiki ke hana i kahi hopena neutralization me nā kumu. Hiki ke hoʻohana ʻia ma ke ʻano he hopena waikawa maʻamau e hoʻoholo ai i ka nui o kahi hopena alkaline i ʻike ʻole ʻia. No ka laʻana, i ka wā e titrating ai i kahi hopena sodium hydroxide me kahi hopena maʻamau waikawa oxalic, me ka hoʻohana ʻana i ka phenolphthalein ma ke ʻano he hōʻailona, hiki ke helu ʻia ka nui pololei o ka hopena sodium hydroxide ma muli o ka pilina stoichiometric a me ka nui o ka hopena maʻamau waikawa oxalic i hoʻohana ʻia ma ka hopena o ka titration.
- ʻO ka Redox Titration: ʻO ka element carbon i loko o ka waikawa oxalic he valence o +3, e hōʻike ana i ka reducibility a hiki ke hana me nā mea oxidizing ikaika i kahi hopena redox. I loko o kahi medium acidic, hiki ke oxidized ʻia ka sodium oxalate e ka potassium permanganate. Ma ka hoʻohana ʻana i kēia hopena, hiki ke hoʻohana ʻia ka hopena maʻamau oxalic acid e hoʻohālikelike i ka ʻike pololei o ka hopena potassium permanganate.
Ka Mana Hoʻokele Kūlana ʻOihana
- Ka Hana ʻIli Metala: I nā kaʻina hana mālama ʻili o nā metala e like me ka alumini, hiki ke hoʻohana ʻia nā hopena waikawa oxalic no ke kahakaha ʻana a me ka hoʻomaʻemaʻe ʻana. Ma ka hoʻohana ʻana i ka hopena maʻamau waikawa oxalic, hiki ke hoʻomalu pono ʻia ka nui o ka hopena e hōʻoia i ke kūlike a me ke kūpaʻa o ka hopena mālama ʻili metala, a laila e hoʻomaikaʻi ana i ka maikaʻi o ka huahana. No ka laʻana, ma ka kaohi ʻana i ka nui o ka hopena maʻamau waikawa oxalic i loko o kahi pae kikoʻī, hiki ke kahakaha ʻia kahi huahana alumini e loaʻa ai kahi ʻano ʻili like a nani.
- ʻOihana Electroplating: Hiki ke hoʻohana ʻia ka hopena maʻamau oxalic acid e hoʻoponopono i ka acidity a me ka haku mele ʻana o ka hopena electroplating, e hōʻoiaʻiʻo ana i ka maikaʻi a me ka hana o ka papa electroplated. ʻO ka kaohi pololei ʻana i ka nui o ka waikawa oxalic e kōkua i ka hoʻomaikaʻi ʻana i ka adhesion, gloss, a me ke kūpaʻa ʻana i ka corrosion o ka papa electroplated, e hōʻoiaʻiʻo ana e hoʻokō nā huahana electroplated i nā kūlana maikaʻi.
ʻŌpala a me ka Hoʻouna ʻana
25KG/Drum a i ʻole e like me nā koi a ka mea kūʻai aku.
Hoʻouna: 6 ʻano waiwai weliweli a hiki ke hoʻouna ma ke kai.
Mālama a me ka mālama ʻana
Ola papa: 24 mahina mai ka lā i hana ʻia ai i loko o ka pahu i wehe ʻole ʻia mua i mālama ʻia i kahi maloʻo a me kahi anuanu, mai ka lā pololei, ka wai.
Hale kūʻai ea, hoʻomaloʻo wela haʻahaʻa, hoʻokaʻawale ʻia mai nā mea hoʻomake a me nā waikawa.
