Sodium Hydrosulfite 90%, Mākaukau No ka Hoʻouna ~

Nā noi:
1. ʻO ka hoʻohana ʻana i ka sodium hydrosulfite he ākea loa, ʻo ia hoʻi me ka hoʻohaʻahaʻa dyeing, ka hoʻomaʻemaʻe hoʻohaʻahaʻa, ka paʻi ʻana a me ka decolorization i ka ʻoihana textile, a me ka bleaching o ka siliki, ka hulu hipa, ka nylon a me nā lole ʻē aʻe. No ka mea, ʻaʻohe metala koʻikoʻi ka sodium hydrosulfite, ʻālohilohi loa ke kala o ka lole bleached a ʻaʻole maʻalahi e mae.

2. Hiki ke hoʻohana ʻia ka sodium hydrosulfite no ka hoʻomaʻemaʻe ʻana i ka meaʻai, e like me ka gelatin, sucrose, candied fruit, etc., a me ke kopa, holoholona (mea kanu) aila, ʻohe, porcelain clay bleaching.

3. Ma ke kahua o ka organik synthesis, hoʻohana ʻia ka sodium hydrosulfite ma ke ʻano he mea hoʻohaʻahaʻa a i ʻole bleaching agent i ka hana ʻana i nā mea pena a me nā lāʻau lapaʻau, ʻoi aku hoʻi ma ke ʻano he bleaching agent no ka lāʻau pulp papermaking.

4. Hiki i ka sodium hydrosulfite ke hoʻemi i nā ion metala kaumaha e like me Pb2+, Bi3+, a me nā mea ʻē aʻe i nā metala i ka mālama ʻana i ka wai a me ka mālama ʻana i ka pollution, a hiki ke hoʻohana ʻia e mālama i ka meaʻai a me nā huaʻai.

ʻO ka pōʻino
Hiki ke ahi:ʻO ka sodium dithionite kahi mea hiki ke puhi ʻia i ka papa mua ke pulu e like me nā kūlana aupuni. E hana ʻino ia i ka wā e hoʻopili ai me ka wai, e hana ana i nā kinoea lapalapa e like me ka hydrogen sulfide a me ka sulfur dioxide, a me ka hoʻokuʻu ʻana i ka nui o ka wela. ʻO ka hoʻohālikelike pane ʻana: 2Na2S2O4+2H2O+O2=4NaHSO3, a hoʻoneʻe hou nā huahana e hana i ka hydrogen sulfide a me ka sulfur dioxide. ʻO ka sodium dithionite kahi kūlana valence waena o ka sulfur, a ʻaʻole paʻa kona mau mea kemika. Hōʻike ia i nā waiwai hoʻemi ikaika. Ke hālāwai ʻo ia me nā waikawa oxidizing ikaika, e like me ka sulfuric acid, perchloric acid, nitric acid, phosphoric acid a me nā mea ikaika ʻē aʻe, e loaʻa ana nā mea ʻelua i kahi hopena redox, a ʻoi aku ka ikaika o ka hopena, e hoʻokuʻu ana i ka nui o ka wela a me nā mea ʻona. ʻO kona hoʻohālikelike ʻana: 2Na2S2O4+4HCl=2H2S2O4+4NaCl

ʻO ka hoʻopau wale ʻana:Loaʻa i ka sodium dithionite kahi wela wela o 250 ℃. Ma muli o kona wahi haʻahaʻa haʻahaʻa, ʻo ia kahi paʻa paʻa paʻa mua (ʻo ka helu ignition ma lalo o 300 ℃, a ʻo ka helu hoʻoheheʻe haʻahaʻa ma lalo o 100 ℃). He maʻalahi loa ke puhi ʻana i ka wā e ʻike ʻia i ka wela, ke ahi, ka friction a me ka hopena. He wikiwiki ka puhi ahi a he kiʻekiʻe ke ahi. ʻO ke kinoea hydrogen sulfide kinoea i hana ʻia i ka wā o ka hoʻopau ʻana i ke ahi, hiki ke hoʻonui i ka nui o ke ahi.

Pahū:ʻO ka sodium dithionite kahi mea pauda melemele māmā. He mea maʻalahi ka mea pauda e hana i kahi hui pahū i ka lewa. Pahū ka lepo i ka wā e hālāwai ai me kahi kumu ahi. ʻO ka hui ʻana o ka sodium dithionite a me ka hapa nui o nā oxidants, e like me nā chlorates, nitrates, perchlorates, a i ʻole permanganate, he pahū. ʻOiai ma ke alo o ka wai, pahū ia ma hope o ka haʻalulu liʻiliʻi a i ʻole ka hopena, ʻoi aku ka nui ma hope o ka decomposition thermal, ke kinoea lapalapa i hana ʻia ma hope o ka hopena a hiki i ka palena pahū, a laila ʻoi aku ka nui o ka pōʻino pahū.