Mea Hana Maikaʻi Kumu Butylal (Dibutoxymethane) CAS: 2568-90-3
Nā huaʻōlelo like
ʻO Formaldehyde dibutyl acetal kahi acetal i hoʻohana ʻia i ka hana ʻana i nā resins synthetic, antiseptics, deodorants, a me nā fungicides. Hoʻohana ʻia ʻo ia ma ke ʻano he mea hoʻohui wahie e hoʻonui ai i ka helu octane o ka ʻaila a i ʻole ka helu n-cetane o nā wahie diesel a hoʻemi i ka uahi a me nā ʻāpana.
Nā noi o Butylal
- ʻO ka formaldehyde dibutyl acetal he mea hoʻoheheʻe halogen ʻole a emi ʻole ka ʻawaʻawa hiki ke hoʻohana ʻia e hoʻoheheʻe i nā laʻana polyethylene haʻahaʻa haʻahaʻa haʻahaʻa (LDPE) pāʻoihana e kālailai i ka hāʻawi ʻana i ke kaumaha molekala me ka hoʻohana ʻana i ka gel permeation chromatography (GPC). Hiki ke hoʻohana ʻia ma ke ʻano he reactant e hoʻomākaukau ai i ka butoxymethyltriphenylphosphonium iodide, i hoʻohana ʻia no ka homologation kalapona a me ke kumu koʻikoʻi koʻikoʻi i ka synthesis organik.
- Hoʻomākaukau: ʻO kahi ipu i loaʻa he 15 gm (0.5 mole) o ka paraformaldehyde, 74 gm (1.0 mole) o ka η-butyl alcohol, a me 2.0 gm o ka anhydrous ferric chloride i refluxed no 10 hola. Hoʻolei ʻia ka papa haʻahaʻa o 3-4 ml o nā mea a laila hoʻohui ʻia 50 ml o 10% aqueous sodium carbonate solution e wehe i ka ferric chloride e like me ka ferric hydroxide. Hoʻoluliluli ʻia ka huahana me ka hui ʻana o 40 ml o 20% hydrogen peroxide a me 5 ml o 10% solution sodium carbonate ma 45 ° C i mea e wehe ai i ke koena aldehyde. Holoi ʻia ka huahana me ka wai, hoʻomaloʻo ʻia, a hoʻomaʻemaʻe ʻia mai ka metala sodium nui a hiki i ka 62 gm (78%).
Hōʻike o Butylal
| Huihui | Hōʻike |
| Ka nana aku | ʻO ka wai māmā, kala ʻole |
| Maʻemaʻe (GC) | ≥99% |
| Māmā (KF%) | ≤0.1% |
| n-butyl waiʻona (GC) | ≤0.75% |
| Formaldehyde(GC) | ≤0.15% |
Hoʻopili i ka Butylal
170KG / pahu
Pono ka waiho ʻana ma kahi anuanu, maloʻo a ventilate.
E kākau i kāu leka ma aneʻi a hoʻouna mai iā mākou
