T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 5 – Arkady Leokum<\/p>\n\n\n\n
Than c\u1ee7i \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m m\u1eb7t n\u1ea1 ng\u1eeba h\u01a1i ng\u1ea1t, l\u1ecdc n\u01b0\u1edbc, b\u00fat ch\u00ec, xi \u0111\u00e1nh gi\u1ea7y, kem \u0111\u00e1nh r\u0103ng v\u00e0 thu\u1ed1c ch\u1eefa b\u1ec7nh. Nh\u01b0ng than c\u1ee7i l\u00e0 g\u00ec? Kh\u00f4ng n\u00ean hi\u1ec3u than c\u1ee7i (charcoal) \u0111\u01a1n gi\u1ea3n l\u00e0 kh\u00fac c\u1ee7i ch\u01b0a ch\u00e1y tr\u1ecdn v\u1eb9n, l\u00e0 c\u00e1i ch\u1ea5t \u0111en \u0111en c\u00f2n l\u1ea1i c\u1ee7a kh\u00fac c\u1ee7i ch\u01b0a ch\u00e1y h\u1ebft. \u201cCharcoal\u201d l\u00e0 g\u1ed7 ho\u1eb7c x\u01b0\u01a1ng \u0111\u1ed9ng v\u1eadt \u0111\u01b0\u1ee3c cho v\u00e0o l\u00f2 nung \u0111\u1ec3 l\u00e0m b\u1ed1c h\u01a1i n\u01b0\u1edbc v\u00e0 c\u00e1c ch\u1ea5t kh\u00ed ch\u1ee9a trong g\u1ed7, x\u01b0\u01a1ng v\u00e0 ch\u1ec9 c\u00f2n l\u1ea1i c\u00e1i ch\u1ea5t \u0111en, c\u1ee9ng th\u00f4i. N\u1ebfu l\u00e0 x\u01b0\u01a1ng \u0111\u1ed9ng v\u1eadt th\u00ec g\u1ecdi l\u00e0 than x\u01b0\u01a1ng. Lo\u1ea1i than n\u00e0y r\u1ea5t h\u1eefu d\u1ee5ng trong vi\u1ec7c l\u1ecdc c\u00e1c ch\u1ea5t d\u01a1 t\u1ea1p v\u00ec n\u00f3 thu h\u00fat \u0111\u01b0\u1ee3c c\u00e1c ch\u1ea5t d\u01a1 t\u1ea1p, c\u00e1c m\u00e0u v\u00e0 m\u00f9i x\u00fa u\u1ebf.<\/p>\n\n\n\n
Mu\u1ed9i \u0111\u00e8n v\u00e0 than ng\u00e0 voi \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m m\u1ef1c in v\u00e0 s\u01a1n d\u1ea7u. Mu\u1ed9i \u0111\u00e8n \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o b\u1eb1ng c\u00e1ch \u0111\u1ed1t c\u00e1c nh\u1ef1a c\u00e2y, nh\u1ef1a th\u00f4ng, d\u1ea7u h\u1eafc, h\u1eafc \u00edn, ch\u1ea5t b\u00e9o. Khi \u0111\u1ed1t c\u00e1c ch\u1ea5t n\u00e0y ch\u1ec9 n\u00ean cho \u00edt kh\u00f4ng kh\u00ed \u0111\u1ec3 c\u00f3 nhi\u1ec1u \u201ckh\u00f3i\u201d. H\u1ee9ng l\u1ea5y c\u00e1i \u201ckh\u00f3i\u201d \u0111\u00f3 l\u00e0 c\u00f3 \u201cmu\u1ed9i \u0111\u00e8n\u201d. T\u1ea5t nhi\u00ean ch\u1ec9 nh\u1eefng th\u1ee9 ng\u00e0 voi \u201c\u0111\u1ed3 b\u1ecf\u201d m\u1edbi \u0111em \u0111\u1ed1t l\u1ea5y mu\u1ed9i. Than c\u1ee7i \u0111\u01b0\u1ee3c \u201cch\u1ebf t\u1ea1o\u201d theo hai c\u00e1ch. C\u00e1ch th\u1ee9 nh\u1ea5t l\u00e0 \u201c\u1ee7 than\u201d t\u1ee9c l\u00e0 x\u1ebfp c\u1ee7i th\u00e0nh \u0111\u1ed1ng, \u0111\u1ed1t l\u00ean r\u1ed3i l\u1ea5y c\u1ecf hay tr\u1ea5u l\u1ea5p k\u00edn. C\u1ee7i b\u1ecb ch\u00e1y \u00e2m \u1ec9. C\u00e1c \u201cl\u00f2\u201d \u0111\u1ed1t than trong r\u1eebng ng\u00e0y nay \u00e1p d\u1ee5ng c\u00e1ch n\u00e0y. C\u00e1ch th\u1ee9 hai l\u00e0 ch\u1ea5t c\u1ee7i v\u00e0o c\u00e1c \u201cn\u1ed3i l\u1edbn\u201d g\u1ecdi l\u00e0 \u201cretor\u201d \u0111\u1ec3 \u201cnung\u201d. C\u1ee7i s\u1ebd \u201cch\u00e1y\u201d \u00e2m \u1ec9 th\u00e0nh than. H\u01a1i trong l\u00f2 tho\u00e1t ra c\u0169ng \u0111\u01b0\u1ee3c h\u1ee9ng l\u1ea5y v\u00e0 l\u00e0m cho h\u00f3a l\u1ecfng th\u00e0nh ch\u1ea5t c\u1ed3n hay l\u00e0 acid acetic.<\/p>\n\n\n\n
Than c\u1ee7i d\u1eabn nhi\u1ec7t r\u1ea5t k\u00e9m n\u00ean c\u0169ng \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m ch\u1ea5t c\u00e1ch nhi\u1ec7t. Than c\u1ee7i d\u00f9ng l\u00e0m m\u1eb7t n\u1ea1 ch\u1ed1ng h\u01a1i ng\u1ea1t l\u00e0 t\u1ed1t nh\u1ea5t v\u00ec n\u00f3 h\u1ea5p thu \u0111\u01b0\u1ee3c h\u01a1i n\u00e0y. M\u1ea5y \u00f4ng h\u1ecda s\u0129 d\u00f9ng than c\u1ee7a m\u1ed9t th\u1ee9 c\u00e2y li\u1ec5u \u0111\u1ec3 v\u1ebd tranh.<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 5 – Arkady Leokum Than c\u1ee7i \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m m\u1eb7t n\u1ea1 ng\u1eeba h\u01a1i ng\u1ea1t, l\u1ecdc n\u01b0\u1edbc, b\u00fat ch\u00ec, xi \u0111\u00e1nh gi\u1ea7y, kem \u0111\u00e1nh r\u0103ng v\u00e0 thu\u1ed1c ch\u1eefa b\u1ec7nh. Nh\u01b0ng than c\u1ee7i l\u00e0 g\u00ec? Kh\u00f4ng n\u00ean hi\u1ec3u than c\u1ee7i (charcoal) \u0111\u01a1n gi\u1ea3n l\u00e0 kh\u00fac […]<\/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":[15],"tags":[],"class_list":["post-14717","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14717","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=14717"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14717\/revisions"}],"predecessor-version":[{"id":14718,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14717\/revisions\/14718"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}