{"id":10182,"date":"2023-03-03T14:50:04","date_gmt":"2023-03-03T07:50:04","guid":{"rendered":"https:\/\/vaynhanhonline.com.vn\/?p=10182"},"modified":"2023-03-03T14:50:04","modified_gmt":"2023-03-03T07:50:04","slug":"bach-kim-la-gi","status":"publish","type":"post","link":"https:\/\/vaynhanhonline.com.vn\/bach-kim-la-gi\/","title":{"rendered":"B\u1ea1ch Kim L\u00e0 G\u00ec? B\u1ea1ch Kim C\u00f3 Ph\u1ea3i L\u00e0 V\u00e0ng Tr\u1eafng, V\u00e0ng \u00dd?"},"content":{"rendered":"

B\u1ea1ch kim v\u00e0 v\u00e0ng tr\u1eafng l\u00e0 2 lo\u1ea1i tran s\u1ee9c qu\u00fd, c\u00f3 gi\u00e1 th\u00e0nh r\u1ea5t \u0111\u00e1t \u0111\u1ecf. Nhi\u1ec1u ng\u01b0\u1eddi v\u1eabn l\u1ea7m t\u01b0\u1edfng b\u1ea1ch kim l\u00e0 v\u00e0ng tr\u1eafng. Tuy nhi\u00ean th\u00ec kh\u00f4ng ph\u1ea3i nh\u01b0 v\u1eady, th\u1ebf b\u1ea1ch kim l\u00e0 g\u00ec?<\/strong> Ph\u00e2n bi\u1ec7t b\u1ea1ch kim v\u00e0 v\u00e0ng tr\u1eafng nh\u01b0 th\u1ebf n\u00e0o. Trong b\u00e0i vi\u1ebft h\u00f4m nay, vaynhanhonline<\/a> s\u1ebd gi\u1ea3i \u0111\u00e1p chi ti\u1ebft b\u1ea1ch kim l\u00e0 g\u00ec? Cung nh\u01b0 gi\u00fap b\u1ea1n \u0111\u1ecdc ph\u00e2n bi\u1ec7t b\u1ea1ch kim v\u00e0 v\u00e0ng tr\u1eafng, v\u00e0ng \u00fd.<\/em><\/p>\n

Kh\u00e1i ni\u1ec7m b\u1ea1ch kim l\u00e0 g\u00ec?<\/h2>\n

Tr\u01b0\u1edbc khi \u0111i v\u00e0o t\u00ecm hi\u1ec3u b\u1ea1ch kim c\u00f3 ph\u1ea3i v\u00e0ng tr\u1eafng<\/a>, v\u00e0ng \u00fd<\/a> hay kh\u00f4ng m\u00e0 nhi\u1ec1u kh\u00e1ch h\u00e0ng l\u1ea1i l\u1ea7m t\u01b0\u1edfng nh\u01b0 v\u1eady, ch\u00fang ta c\u0169ng t\u00ecm hi\u1ec3u qua \u0111\u1ecbnh ngh\u0129a b\u1ea1ch kim l\u00e0 g\u00ec?<\/strong><\/p>\n

\"Kh\u00e1i
B\u1ea1ch kim l\u00e0 g\u00ec?<\/figcaption><\/figure>\n

B\u1ea1ch kim l\u00e0 m\u1ed9t kim lo\u1ea1i qu\u00fd hi\u1ebfm, c\u00f3 t\u00ean g\u1ecdi l\u00e0 Platin, c\u00f3 k\u00fd hi\u1ec7u l\u00e0 “Pt”. B\u1ea1ch kim c\u00f3 m\u00e0u tr\u1eafng s\u00e1ng, d\u1ec5 u\u1ed1n, \u0111\u1eb7c d\u1ebbo n\u00ean th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t ra c\u00e1c m\u1eabu trang s\u1ee9c qu\u00fd t\u1ed9c, cao c\u1ea5p.<\/p>\n

B\u1ea1ch kim \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y l\u1ea7n \u0111\u1ea7u ti\u00ean \u1edf Ch\u00e2u \u00c2u v\u00e0o n\u0103m 1748 do ng\u01b0\u1eddi T\u00e2y Ban Nha ph\u00e1t hi\u1ec7n ra, B\u1ea1ch kim t\u1ed3n t\u1ea1i \u1edf d\u1ea1ng tinh khi\u1ebft, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a trong m\u1ecdi m\u00f4i tr\u01b0\u1eddng v\u00e0 nhi\u1ec7t \u0111\u1ed9. Tuy nhi\u00ean, n\u00f3 c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n b\u1edfi c\u00e1c ch\u1ea5t halogen, xianua, l\u01b0u hu\u1ef3nh v\u00e0 dung d\u1ecbch ki\u1ec1m. Tr\u00ean th\u1ecb tr\u01b0\u1eddng kim ho\u00e0n, b\u1ea1ch kim c\u00f3 gi\u00e1 th\u00e0nh cao h\u01a1n g\u1ea5p \u0111\u00f4i so v\u1edbi v\u00e0ng nguy\u00ean ch\u1ea5t 9999. Nh\u1eefng s\u1ea3n ph\u1ea9m trang s\u1ee9c \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb B\u1ea1ch kim th\u01b0\u1eddng \u0111\u01a1n gi\u1ea3n, nh\u1ecf g\u1ecdn v\u00e0 c\u00f3 \u0111\u1ed9 b\u1ec1n cao h\u01a1n. ( theo Wikipedia<\/a> )<\/p>\n

C\u00e1c \u0111\u1eb7c t\u00ednh n\u1ed5i b\u1eadt c\u1ee7a b\u1ea1ch kim<\/h2>\n

B\u1ea1ch kim c\u00f3 gi\u00e1 tr\u1ecb v\u00e0 gi\u00e1 b\u00e1n v\u00f4 c\u00f9ng cao, kh\u00f4ng ph\u1ea3i t\u1ef1 nhi\u00ean m\u00e0 gi\u00e1 b\u00e1n c\u1ee7 b\u1ea1ch kim l\u1ea1i cao g\u1ea5p \u0111\u1ed1i so v\u1edbi gi\u00e1 v\u00e0ng 24k, t\u1ea5t c\u1ea3 l\u00e0 b\u1edfi v\u00ec c\u00e1c \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt nh\u01b0 sau:<\/p>\n

\"B\u1ea1ch
B\u1ea1ch kim c\u00f3 \u0111i\u1ec3m g\u00ec n\u1ed5i b\u1eadt<\/figcaption><\/figure>\n