V\u00e0o m\u00f9a \u0111\u00f4ng th\u1eddi ti\u1ebft th\u01b0\u1eddng kh\u00f4 hanh, ng\u01b0\u1eddi ta th\u01b0\u1eddng b\u00f4i l\u00ean da m\u1ed9t ch\u00fat glyxerol.<\/p>\n\n\n\n
Glyxerol tinh khi\u1ebft l\u00e0 ch\u1ea5t m\u00e0u tr\u1eafng, k\u1ebft tinh, nh\u01b0ng khi nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n 17\u00b0C th\u00ec s\u1ebd n\u00f3ng ch\u1ea3y. Nh\u01b0ng glyxerol th\u01b0\u1eddng h\u00fat nhi\u1ec1u h\u01a1i \u1ea9m v\u00e0 t\u1ea1p ch\u1ea5t, n\u00ean s\u1ebd kh\u00f4ng \u1edf tr\u1ea1ng th\u00e1i r\u1eafn m\u00e0 l\u00e0 \u1edf tr\u1ea1ng th\u00e1i l\u1ecfng, kh\u00f4ng m\u00e0u s\u1eafc, kh\u00f4ng m\u00f9i. Glyxerol c\u00f3 v\u1ecb ng\u1ecdt, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 li\u00ean quan \u0111\u1ebfn c\u1ea5u t\u1ea1o ph\u00e2n t\u1eed c\u1ee7a glyxerol. Glyxerol c\u00f3 ba nh\u00f3m hy\u0111roxyl trong ph\u00e2n t\u1eed n\u00ean c\u00f3 v\u1ecb ng\u1ecdt. Trong ph\u00e2n t\u1eed glyxerol c\u00f3 ba nguy\u00ean t\u1eed oxy, m\u1ed7i nguy\u00ean t\u1eed oxy k\u1ebft h\u1ee3p v\u1edbi m\u1ed9t nguy\u00ean t\u1eed hy\u0111ro, t\u1ea1o n\u00ean ba nh\u00f3m hy\u0111roxyl – OH. N\u00f3i chung so v\u1edbi glyxerol, \u0111\u01b0\u1eddng \u0111\u01a1n (nh\u01b0 \u0111\u01b0\u1eddng glucoza ho\u1eb7c fructoza), \u0111\u01b0\u1eddng k\u00e9p nh\u01b0 (saccaroza), c\u00f3 s\u1ed1 nh\u00f3m hy\u0111roxyl nhi\u1ec1u h\u01a1n n\u00ean ng\u1ecdt h\u01a1n.<\/p>\n\n\n\n
Glyxerol l\u00e0 “m\u1ed9t v\u1ec7 s\u0129” c\u1ee7a da, v\u00ec glyxerol gi\u1eef \u0111\u01b0\u1ee3c n\u01b0\u1edbc, b\u1ea3o v\u1ec7 da kh\u00f4ng b\u1ecb kh\u00f4. Khi n\u1ed3ng \u0111\u1ed9 dung d\u1ecbch glyxerol c\u00e0ng l\u1edbn th\u00ec kh\u1ea3 n\u0103ng h\u00fat n\u01b0\u1edbc c\u00e0ng m\u1ea1nh, n\u00f3 c\u00f3 th\u1ec3 m\u1ed9t m\u1eb7t h\u1ea5p th\u1ee5 n\u01b0\u1edbc t\u1eeb kh\u00f4ng kh\u00ed, c\u0169ng c\u00f3 th\u1ec3 h\u00fat n\u01b0\u1edbc t\u1eeb l\u1edbp da. N\u1ebfu nh\u01b0 v\u1eady th\u00ec b\u00f4i glyxerol l\u00ean da c\u00f3 th\u1ec3 l\u00e0m da b\u1ecb kh\u00f4? Th\u1ef1c t\u1ebf ch\u1ee9ng minh, glyxerol ch\u1ee9a 20% n\u01b0\u1edbc, th\u00edch h\u1ee3p cho t\u00e1c d\u1ee5ng b\u1ea3o v\u1ec7 da.<\/p>\n\n\n\n
Glyxerol l\u00e0 lo\u1ea1i nguy\u00ean li\u1ec7u quan tr\u1ecdng trong c\u00f4ng ngh\u1ec7 ho\u00e1 h\u1ecdc, d\u00f9ng \u0111\u1ec3 ch\u1ebf t\u1ea1o ch\u1ea5t d\u1ebbo, s\u1ee3i t\u1ed5ng h\u1ee3p v\u00e0 ch\u1ebf t\u1ea1o d\u01b0\u1ee3c ph\u1ea9m. C\u00f3 \u0111i\u1ec1u \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 lo\u00e0i ng\u01b0\u1eddi \u0111\u00e3 s\u1edbm bi\u1ebft d\u00f9ng h\u1ed7n h\u1ee3p axit nitric v\u00e0 axit sunfuric x\u1eed l\u00fd glyxerol, \u0111i\u1ec1u ch\u1ebf \u0111\u01b0\u1ee3c nitrat glyxerol ho\u00e0 tan trong n\u01b0\u1edbc \u0111\u1ec3 \u0111i\u1ec1u tr\u1ecb b\u1ec7nh ph\u1ed5i. V\u1ec1 sau ng\u01b0\u1eddi ta ngh\u0129 \u0111\u1ebfn vi\u1ec7c kh\u1eed n\u01b0\u1edbc ho\u00e0 tan trong glyxerol v\u00e0 ch\u1ebf t\u1ea1o \u0111\u01b0\u1ee3c nitroglyxerol tinh khi\u1ebft v\u00e0 thu \u0111\u01b0\u1ee3c m\u1ed9t lo\u1ea1i thu\u1ed1c n\u1ed5 m\u1ea1nh trong ph\u00f2ng th\u00ed nghi\u1ec7m. B\u1ea5y gi\u1edd ng\u01b0\u1eddi ta m\u1edbi bi\u1ebft nitroglyxerol l\u00e0 lo\u1ea1i thu\u1ed1c n\u1ed5 r\u1ea5t m\u1ea1nh. C\u00f4ng ngh\u1ec7 x\u1eed l\u00fd glyxerol th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn axit sunfuric, c\u00e1c mu\u1ed1i kim lo\u1ea1i n\u1eb7ng, asen v\u00e0 nhi\u1ec1u ch\u1ea5t m\u00e0u h\u1eefu c\u01a1, ch\u00fang \u0111\u1ec1u c\u00f3 m\u00e0u v\u00e0ng, m\u00f9i kh\u00f3 ng\u1eedi, k\u00edch th\u00edch da, n\u00ean kh\u00f4ng \u0111\u01b0\u1ee3c d\u00f9ng glyxerol c\u00f4ng nghi\u1ec7p \u0111\u1ec3 b\u00f4i l\u00ean da.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Glyxerol; Nitroglyxerol<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
V\u00e0o m\u00f9a \u0111\u00f4ng th\u1eddi ti\u1ebft th\u01b0\u1eddng kh\u00f4 hanh, ng\u01b0\u1eddi ta th\u01b0\u1eddng b\u00f4i l\u00ean da m\u1ed9t ch\u00fat glyxerol. Glyxerol tinh khi\u1ebft l\u00e0 ch\u1ea5t m\u00e0u tr\u1eafng, k\u1ebft tinh, nh\u01b0ng khi nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n 17\u00b0C th\u00ec s\u1ebd n\u00f3ng ch\u1ea3y. Nh\u01b0ng glyxerol th\u01b0\u1eddng h\u00fat nhi\u1ec1u h\u01a1i \u1ea9m v\u00e0 t\u1ea1p ch\u1ea5t, n\u00ean s\u1ebd kh\u00f4ng \u1edf tr\u1ea1ng th\u00e1i r\u1eafn m\u00e0 […]<\/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-8134","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\/8134","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=8134"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8134\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}