{"id":7773,"date":"2021-11-20T15:22:14","date_gmt":"2021-11-20T08:22:14","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=7773"},"modified":"2021-11-20T17:13:08","modified_gmt":"2021-11-20T10:13:08","slug":"lam-the-nao-khac-cac-hoa-van-len-be-mat-thuy-tinh","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/lam-the-nao-khac-cac-hoa-van-len-be-mat-thuy-tinh\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o kh\u1eafc c\u00e1c hoa v\u0103n l\u00ean b\u1ec1 m\u1eb7t thu\u1ef7 tinh?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Ta th\u01b0\u1eddng th\u1ea5y quanh ta c\u00f3 nhi\u1ec1u lo\u1ea1i \u0111\u1ed3 d\u00f9ng b\u1eb1ng th\u1ee7y tinh c\u00f3 kh\u1eafc ch\u1ea1m c\u00e1c hoa v\u0103n kh\u00e1c nhau. Trong c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m c\u0169ng c\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i d\u1ee5ng c\u1ee5 \u0111o b\u1eb1ng th\u1ee7y tinh nh\u01b0 c\u00e1c nhi\u1ec7t k\u1ebf, \u1ed1ng \u0111ong, buret\u2026 \u0111\u01b0\u1ee3c kh\u1eafc \u0111\u1ed9 h\u1ebft s\u1ee9c ch\u00ednh x\u00e1c. Thu\u1ef7 tinh l\u00e0 lo\u1ea1i ch\u1ea5t li\u1ec7u c\u1ee9ng tr\u01a1n, vi\u1ec7c kh\u1eafc \u0111\u1ed9 chu\u1ea9n x\u00e1c c\u0169ng nh\u01b0 vi\u1ec7c kh\u1eafc ho\u1ea1 c\u00e1c h\u00ecnh v\u1ebd, hoa v\u0103n tinh vi l\u00ean b\u1ec1 m\u1eb7t th\u1ee7y tinh qu\u1ea3 l\u00e0 \u0111i\u1ec1u kh\u00f4ng d\u1ec5 l\u00e0m. L\u00e0m th\u1ebf n\u00e0o kh\u1eafc ch\u1ea1m c\u00e1c h\u00ecnh v\u1ebd, hoa v\u0103n l\u00ean thu\u1ef7 tinh?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1eddi ta \u0111\u00e3 t\u00ecm th\u1ea5y m\u1ed9t lo\u1ea1i ho\u00e1 ch\u1ea5t trong ph\u00f2ng th\u00ed nghi\u1ec7m c\u00f3 th\u1ec3 \u0103n m\u00f2n th\u1ee7y tinh r\u1ea5t m\u1ea1nh. Khi thu\u1ef7 tinh ti\u1ebfp x\u00fac v\u1edbi lo\u1ea1i ho\u00e1 ch\u1ea5t n\u00e0y, b\u1ec1 m\u1eb7t thu\u1ef7 tinh s\u1ebd b\u1ecb \u0111\u1ee5c th\u1ee7ng, th\u1eadm ch\u00ed c\u00f3 th\u1ec3 &#8220;g\u1eb7m&#8221; h\u1ebft c\u1ea3 m\u1ea3nh th\u1ee7y tinh. Lo\u1ea1i &#8220;qu\u00e1i v\u1eadt&#8221; \u0103n thu\u1ef7 tinh n\u00e0y ch\u00ednh l\u00e0 axit flohy\u0111ric ch\u1ec9 \u0111\u01b0\u1ee3c \u0111\u1ef1ng trong c\u00e1c b\u00ecnh \u0111\u1ef1ng b\u1eb1ng ch\u1ea5t d\u1ebbo m\u00e0 kh\u00f4ng th\u1ec3 \u0111\u1ef1ng \u0111\u01b0\u1ee3c trong b\u00ecnh th\u1ee7y tinh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc \u0111\u00e2y, \u1edf c\u00e1c nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t axit flohy\u0111ric h\u1ea7u nh\u01b0 t\u1ea5t c\u1ea3 c\u00e1c b\u00f3ng \u0111\u00e8n \u0111\u1ec1u bi\u1ebfn th\u00e0nh c\u00e1c b\u00f3ng \u0111\u00e8n tr\u1eafng \u0111\u1ee5c; h\u1ea7u nh\u01b0 m\u1ecdi c\u1eeda k\u00ednh b\u1ecb \u0111\u1ee5c th\u1ee7ng l\u1ed7 ch\u1ed7 nh\u01b0 &#8220;m\u1eb7t s\u00e0ng th\u1ee7y tinh&#8221;. \u0110\u00f3 ch\u00ednh l\u00e0 do trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t axit flohy\u0111ric, \u0111\u00e3 c\u00f3 r\u00f2 r\u1ec9 m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf axit flohy\u0111ric v\u00e0 ch\u00ednh l\u01b0\u1ee3ng nh\u1ecf axit flohy\u0111ric \u0111\u00e3 \u0103n m\u00f2n d\u1ea7n d\u1ea7n c\u00e1c d\u1ee5ng c\u1ee5, \u0111\u1ed3 d\u00f9ng b\u1eb1ng th\u1ee7y tinh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec axit flohy\u0111ric c\u00f3 t\u00e1c d\u1ee5ng \u0103n m\u00f2n th\u1ee7y tinh r\u1ea5t m\u1ea1nh n\u00ean ng\u01b0\u1eddi ta \u0111\u00e3 kh\u00e9o l\u00e9o s\u1eed d\u1ee5ng axit n\u00e0y v\u00e0o vi\u1ec7c ch\u1ea1m kh\u1eafc th\u1ee7y tinh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi c\u1ea7n kh\u1eafc h\u1ecda hoa v\u0103n ho\u1eb7c kh\u1eafc \u0111\u1ed9 tr\u00ean c\u00e1c \u0111\u1ed3 d\u00f9ng b\u1eb1ng th\u1ee7y tinh, ng\u01b0\u1eddi ta tr\u00e1ng m\u1ed9t l\u1edbp parafin l\u00ean b\u1ec1 m\u1eb7t thu\u1ef7 tinh. Sau \u0111\u00f3 c\u1ea9n th\u1eadn d\u00f9ng l\u01b0\u1ee1i ch\u1ea1m \u0111\u1ec3 kh\u1eafc v\u1ebd c\u00e1c hoa v\u0103n ho\u1eb7c v\u1ea1ch kh\u1eafc \u0111\u1ed9 tr\u00ean l\u1edbp parafin \u0111\u1ec3 l\u1ed9 ra c\u00e1c n\u00e9t hoa v\u0103n c\u1ea7n ch\u1ea1m kh\u1eafc tr\u00ean b\u1ec1 m\u1eb7t th\u1ee7y tinh. Ti\u1ebfp theo d\u00f9ng axit flohy\u0111ric ph\u1ee7 l\u00ean b\u1ec1 m\u1eb7t parafin \u0111\u1ec3 cho \u0103n m\u00f2n c\u00e1c n\u00e9t v\u1ebd, c\u00e1c v\u1ea1ch kh\u1eafc tr\u00ean b\u1ec1 m\u1eb7t th\u1ee7y tinh \u0111\u00e3 l\u1ed9 ra v\u00e0 g\u1eb7m m\u00f2n th\u1ee7y tinh. L\u1edbp axit flohy\u0111ric c\u00e0ng nhi\u1ec1u th\u00ec v\u1ebft kh\u1eafc s\u1ebd c\u00e0ng s\u00e2u, n\u1ebfu l\u1edbp axit \u00edt th\u00ec v\u1ebft kh\u1eafc s\u1ebd n\u00f4ng. Sau khi ti\u1ebfn h\u00e0nh kh\u1eafc ch\u1ea1m c\u1ea9n th\u1eadn th\u00ec tr\u00ean b\u1ec1 m\u1eb7t th\u1ee7y tinh s\u1ebd c\u00f3 c\u00e1c hoa v\u0103n, c\u00e1c n\u00e9t kh\u1eafc ch\u1ea1m tinh t\u1ebf. Nh\u1eefng \u0111\u1ed3 d\u00f9ng th\u1ee7y tinh sau khi kh\u1eafc ch\u1ea1m s\u1ebd c\u00f3 c\u00e1c hoa v\u0103n, h\u00ecnh v\u1ebd h\u1ebft s\u1ee9c tinh t\u1ebf, \u0111\u1eb9p \u0111\u1ebd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb kho\u00e1: Axit flohy\u0111ric; Thu\u1ef7 tinh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ta th\u01b0\u1eddng th\u1ea5y quanh ta c\u00f3 nhi\u1ec1u lo\u1ea1i \u0111\u1ed3 d\u00f9ng b\u1eb1ng th\u1ee7y tinh c\u00f3 kh\u1eafc ch\u1ea1m c\u00e1c hoa v\u0103n kh\u00e1c nhau. Trong c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m c\u0169ng c\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i d\u1ee5ng c\u1ee5 \u0111o b\u1eb1ng th\u1ee7y tinh nh\u01b0 c\u00e1c nhi\u1ec7t k\u1ebf, \u1ed1ng \u0111ong, buret\u2026 \u0111\u01b0\u1ee3c kh\u1eafc \u0111\u1ed9 h\u1ebft s\u1ee9c ch\u00ednh x\u00e1c. Thu\u1ef7 tinh l\u00e0 lo\u1ea1i [&hellip;]<\/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-7773","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\/7773","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=7773"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7773\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7773"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7773"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}