Manufacturer Price maikaʻi Stearic acid CAS:57-11-4

ʻO ka waika Stearic, (ka papa hana ʻoihana) ʻO ka waika Stearic kekahi o nā ʻakika momona kaulahao lōʻihi i loko o nā ʻaila a me nā momona.Hāʻawi ʻia ia i loko o nā momona holoholona, ​​​​ʻaila a me kekahi ʻano o nā aila mea kanu a me ke ʻano o glycerides.ʻO kēia mau ʻaila, ma hope o ka hydrolysis, hoʻopuka i ka waikawa stearic.
ʻO ka ʻakika Stearic kahi ʻakika momona e kū nei ma ke ʻano a loaʻa iā ia nā waiwai kemika maʻamau o nā waikawa carboxylic.Ma kahi kokoke i nā ʻano momona a me ka ʻaila he nui ka nui o ka waikawa stearic me ka kiʻekiʻe o nā mea i loko o nā momona holoholona.No ka laʻana, hiki ke piʻi i ka 24% ka mea i loko o ka ʻaila aila ʻai me ka waiwai o ka aila kī he 0.8% a ʻo ka ʻaila i loko o ka pāma he 6%.Eia nō naʻe, hiki ke kiʻekiʻe ka mea i loko o ka koko i 34%.

ʻElua mau ala nui no ka hana ʻana i ka ʻenehana stearic acid, ʻo ia hoʻi ka fractionation a me ke ʻano kaomi.E hoʻohui i ka mea hoʻoheheʻe i ka ʻaila hydrogenated, a laila hydrolyze e hāʻawi i ka momona momona, hele hou i ka holoi ʻana me ka wai, distillation, bleaching e loaʻa ai nā huahana i hoʻopau ʻia me ka glycerol e like me ka hua.
Hoʻohana ka hapa nui o nā mea hana hale i ka momona holoholona no ka hana ʻana.ʻO kekahi ʻano ʻenehana hana e hopena i ka hoʻopau ʻana o ka distillation o ka momona momona e hoʻoulu ai i ka ʻala hoʻoulu i ka manawa o ka hoʻoili ʻana i ka plastic a me nā wela kiʻekiʻe.ʻOiai ʻaʻohe mea ʻawaʻawa kēia mau ʻala akā e loaʻa kekahi hopena i nā kūlana hana a me ke ʻano kūlohelohe.ʻO ka hapa nui o nā ʻano stearic acid i lawe ʻia i ka ʻaila meaʻai e like me nā mea maka, ʻoi aku ka holomua o nā kaʻina hana;ʻO ka waikawa stearic i hana ʻia he hana paʻa, waiwai lubrication maikaʻi a emi ʻole ka ʻala i ka noi.
Hoʻohana nui ʻia ka Stearic acid no ka hana ʻana i nā stearates e like me ka sodium stearate, magnesium stearate, calcium stearate, lead stearate, alumini stearate, cadmium stearate, iron stearate, a me ka potassium stearate.ʻO ka paʻakai sodium a i ʻole ka paʻakai pālolo o ka waikawa stearic ka ʻāpana o ke kopa.ʻOiai ʻoi aku ka liʻiliʻi o ka sodium stearate ma mua o ka sodium palmitate, akā hiki ke hoʻonui i ka paʻakikī o ke kopa.
E lawe i ka pata ma ke ʻano he mea maka, e hele i loko o ka sulfuric acid a i ʻole ke ala kaomi no ka decomposition.ʻO nā ʻakika momona manuahi i hoʻokumu mua ʻia i ke ala kaomi wai no ka wehe ʻana i ka ʻakika palmitic a me ka waikawa oleic ma 30 ~ 40 ℃, a laila hoʻoheheʻe ʻia i loko o ka ethanol, a ukali ʻia me ka hoʻohui o ka barium acetate a i ʻole ka magnesium acetate e hoʻoheheʻe i ka stearate.A laila e hoʻohui hou i ka ʻakika sulfuric dilute e loaʻa ai ka ʻakika stearate manuahi, kānana a lawe ʻia, a hoʻoheheʻe hou i loko o ka ethanol e loaʻa ai ka ʻakika stearic maʻemaʻe.