V\u00e0o ban \u0111\u00eam khi b\u1ea1n l\u00e0m b\u00e0i, h\u1ecdc b\u00e0i b\u1ea1n c\u00f3 th\u1ec3 nghe ti\u1ebfng mu\u1ed7i bay vo ve d\u01b0\u1edbi b\u00e0n v\u00e0 b\u1ea1n c\u00f3 th\u1ec3 b\u1ecb mu\u1ed7i \u0111\u1ed1t \u0111au nh\u00f3i. Mu\u1ed7i l\u00e0 lo\u1ea1i c\u00f4n tr\u00f9ng b\u00e9, khi b\u1ecb mu\u1ed7i \u0111\u1ed1t, ch\u1ed7 \u0111\u1ed1t \u1edf da s\u1ebd b\u1ecb n\u1ed5i l\u00ean m\u1ea9n \u0111\u1ecf, v\u1eeba ng\u1ee9a, v\u1eeba \u0111au. Nguy\u00ean do l\u00e0 khi b\u1ecb mu\u1ed7i \u0111\u1ed1t, ngo\u00e0i vi\u1ec7c h\u00fat m\u00e1u ng\u01b0\u1eddi, qua v\u00f2i h\u00fat m\u00e1u mu\u1ed7i c\u0169ng ti\u1ebft v\u00e0o n\u1ed1t \u0111\u1ed1t m\u1ed9t \u00edt axit fomic, axit fomic s\u1ebd \u0111i v\u00e0o da th\u1ecbt l\u00e0m cho da th\u1ecbt b\u1ecb vi\u00eam g\u00e2y c\u1ea3m gi\u00e1c \u0111au, ng\u1ee9a.<\/p>\n\n\n\n
Axit fomic \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n trong c\u01a1 th\u1ec3 ki\u1ebfn. Axit fomic l\u00e0 lo\u1ea1i axit h\u1eefu c\u01a1 \u0111\u01a1n gi\u1ea3n nh\u1ea5t. Ph\u00e2n t\u1eed axit fomic ch\u1ec9 g\u1ed3m m\u1ed9t nguy\u00ean t\u1eed cacbon, 2 nguy\u00ean t\u1eed hy\u0111ro, 2 nguy\u00ean t\u1eed oxy. Axit fomic c\u00f2n c\u00f3 t\u00ean axit metanon. Axit fomic kh\u00f4ng m\u00e0u, c\u00f3 m\u00f9i h\u1eafc kh\u00f3 ch\u1ecbu. Ngo\u00e0i ki\u1ebfn, axit fomic c\u00f2n c\u00f3 trong c\u00e1c lo\u1ea1i c\u00f4n tr\u00f9ng nh\u01b0 mu\u1ed7i, ong c\u00f9ng nhi\u1ec1u lo\u1ea1i c\u00f4n tr\u00f9ng kh\u00e1c. V\u00ec v\u1eady khi b\u1ecb mu\u1ed7i, ong, ki\u1ebfn \u0111\u1ed1t, v\u1ebft \u0111\u1ed1t \u00edt nhi\u1ec1u b\u1ecb s\u01b0ng, \u0111\u1ecf, t\u1ea5y \u0111\u1ec1u l\u00e0 do axit fomic g\u00e2y ra.<\/p>\n\n\n\n
V\u1eady khi g\u1eb7p t\u00ecnh tr\u1ea1ng n\u00e0y ta l\u00e0m th\u1ebf n\u00e0o? Bi\u1ec7n ph\u00e1p gi\u1ea3i quy\u1ebft \u1edf \u0111\u00e2y kh\u00f4ng kh\u00f3.<\/p>\n\n\n\n
Ta bi\u1ebft axit fomic l\u00e0 m\u1ed9t axit kh\u00e1 m\u1ea1nh ch\u1ec9 c\u1ea7n b\u00f4i v\u00e0o v\u1ebft \u0111\u1ed1t m\u1ed9t \u00edt n\u01b0\u1edbc x\u00e0 ph\u00f2ng \u0111\u1eb7c, n\u01b0\u1edbc x\u00e0 ph\u00f2ng c\u00f3 t\u00ednh ki\u1ec1m s\u1ebd ph\u1ea3n \u1ee9ng v\u1edbi axit fomic bi\u1ebfn th\u00e0nh h\u1ee3p ch\u1ea5t kh\u00f4ng c\u00f3 t\u00ednh axit c\u0169ng kh\u00f4ng c\u00f3 t\u00ednh ki\u1ec1m (ng\u01b0\u1eddi ta g\u1ecdi l\u00e0 c\u00f3 ph\u1ea3n \u1ee9ng trung t\u00ednh). Qu\u00e1 tr\u00ecnh v\u1eeba n\u00eau tr\u00ean trong ho\u00e1 h\u1ecdc g\u1ecdi l\u00e0 qu\u00e1 tr\u00ecnh trung ho\u00e0. Axit fomic l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra t\u1ea5y, ng\u1ee9a b\u1ecb trung ho\u00e0 th\u00e0nh mu\u1ed1i trung t\u00ednh. Nguy\u00ean nh\u00e2n g\u00e2y t\u1ea5y ng\u1ee9a s\u1ebd gi\u1ea3m nh\u1eb9 \u0111i nhi\u1ec1u.<\/p>\n\n\n\n
Axit fomic trong con mu\u1ed7i qu\u1ea3 g\u00e2y cho ng\u01b0\u1eddi ta nhi\u1ec1u phi\u1ec1n ph\u1ee9c nh\u01b0ng axit fomic l\u1ea1i c\u00f3 vai tr\u00f2 quan tr\u1ecdng trong s\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p. Ng\u01b0\u1eddi ta d\u00f9ng axit fomic \u0111\u1ec3 t\u1ed5ng h\u1ee3p c\u00e1c ph\u1ea9m m\u00e0u, ch\u1ea5t keo ph\u1ea9m nhu\u1ed9m, in v\u1ea3i hoa. \u0110\u01b0\u01a1ng nhi\u00ean l\u00e0 l\u01b0\u1ee3ng axit fomic d\u00f9ng cho c\u00e1c m\u1ee5c \u0111\u00edch n\u00e0y r\u1ea5t l\u1edbn kh\u00f4ng th\u1ec3 l\u1ea5y t\u1eeb mu\u1ed7i, ong, ki\u1ebfn \u0111\u1ec3 s\u1eed d\u1ee5ng. Trong s\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p, ng\u01b0\u1eddi ta t\u1ed5ng h\u1ee3p axit fomic cacbon monoxit, natri hy\u0111roxit v\u00e0 axit sunfuric.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Axit fomic; T\u00e1c d\u1ee5ng trung ho\u00e0.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
V\u00e0o ban \u0111\u00eam khi b\u1ea1n l\u00e0m b\u00e0i, h\u1ecdc b\u00e0i b\u1ea1n c\u00f3 th\u1ec3 nghe ti\u1ebfng mu\u1ed7i bay vo ve d\u01b0\u1edbi b\u00e0n v\u00e0 b\u1ea1n c\u00f3 th\u1ec3 b\u1ecb mu\u1ed7i \u0111\u1ed1t \u0111au nh\u00f3i. Mu\u1ed7i l\u00e0 lo\u1ea1i c\u00f4n tr\u00f9ng b\u00e9, khi b\u1ecb mu\u1ed7i \u0111\u1ed1t, ch\u1ed7 \u0111\u1ed1t \u1edf da s\u1ebd b\u1ecb n\u1ed5i l\u00ean m\u1ea9n \u0111\u1ecf, v\u1eeba ng\u1ee9a, v\u1eeba \u0111au. Nguy\u00ean do […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[8,15],"tags":[],"class_list":["post-8170","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8170","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=8170"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8170\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}