{"id":798,"date":"2021-10-07T23:30:06","date_gmt":"2021-10-07T23:30:06","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=798"},"modified":"2021-10-14T22:11:39","modified_gmt":"2021-10-14T15:11:39","slug":"silic-cong-nghiep-silicat-hoc-tot-hoa-9-cung-toppy","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/silic-cong-nghiep-silicat-hoc-tot-hoa-9-cung-toppy\/","title":{"rendered":"Silic c\u00f4ng nghi\u1ec7p silicat \u2013 H\u1ecdc t\u1ed1t h\u00f3a 9 c\u00f9ng"},"content":{"rendered":"\n\n\n<p class=\"wp-block-paragraph\">Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"From sand to silicon\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/jh2z-g7GJxE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i h\u1ecdc v\u1ec1 silic. c\u00f4ng nghi\u1ec7p silicat l\u00e0 m\u1ed9t trong nh\u1eefng ki\u1ebfn th\u1ee9c b\u1eaft bu\u1ed9c trong <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">ch\u01b0\u01a1ng tr\u00ecnh l\u1edbp 9<\/a>. Trong b\u00e0i n\u00e0y t\u1eadp trung l\u00e0m s\u00e1ng t\u1ecf c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn ch\u1ea5t silic v\u00e0 ng\u00e0nh c\u00f4ng nghi\u1ec7p silicat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng ki\u1ebfn th\u1ee9c c\u1ea7n bi\u1ebft v\u1ec1 Silic v\u00e0 silicat<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng tin chung v\u1ec1 slic<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng tin c\u1ee7a silic trong b\u1ea3ng tu\u1ea7n ho\u00e0n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ea5t silic \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 Si. \u0110\u00e2y l\u00e0 nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc n\u1eb1m \u1edf chu k\u00ec 3 c\u1ee7a b\u1ea3ng tu\u1ea7n ho\u00e0n h\u00f3a h\u1ecdc. S\u1ed1 hi\u1ec7u nguy\u00ean t\u1eed kh\u1ed1i c\u1ee7a silic l\u00e0 28 v\u00e0 s\u1ed1 hi\u1ec7u nguy\u00ean t\u1eed l\u00e0 14.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c th\u00f4ng tin v\u00e0 k\u00fd hi\u1ec7u c\u1ee7a Si trong b\u1ea3ng tu\u1ea7n ho\u00e0n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u1ea1ng th\u00e1i t\u1ed3n t\u1ea1i trong t\u1ef1 nhi\u00ean c\u1ee7a silic<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Silic c\u0169ng l\u00e0 nguy\u00ean t\u1ed1 c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i v\u00e0 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y ngo\u00e0i t\u1ef1 nhi\u00ean. \u0110\u1eb7c bi\u1ec7t \u0111\u00e2y c\u0169ng l\u00e0 nguy\u00ean t\u1ed1 \u0111\u1ee9ng th\u1ee9 hai trong b\u1ea3ng x\u1ebfp h\u1ea1ng c\u00e1c nguy\u00ean t\u1ed1 ph\u1ed5 bi\u1ebfn nh\u1ea5t trong l\u1edbp v\u1ecf tr\u00e1i \u0111\u1ea5t (ch\u1ec9 \u0111\u1ee9ng sau oxy). B\u00ean c\u1ea1nh \u0111\u00f3, Silic ch\u1ec9 t\u1ed3n t\u1ea1i \u1edf d\u1ea1ng h\u1ee3p ch\u1ea5t. Silic \u0111\u01b0\u1ee3c th\u1ea5y nhi\u1ec1u nh\u1ea5t ch\u00ednh l\u00e0 lo\u1ea1i \u0111\u1ea5t s\u00e9t v\u00e0 c\u00e1t tr\u1eafng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a Silic<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u01b0 \u0111\u00e3 n\u00f3i \u1edf tr\u00ean, Silic ch\u1ec9 t\u1ed3n t\u1ea1i \u1edf d\u1ea1ng h\u1ee3p ch\u1ea5t v\u00e0 \u1edf th\u1ec3 r\u1eafn. Si c\u0169ng c\u00f3 t\u00ednh d\u1eabn nhi\u1ec7t r\u1ea5t k\u00e9m, kh\u00f3 n\u00f3ng ch\u1ea3y d\u00f9 c\u00f3 t\u00e1c \u0111\u1ed9ng nhi\u1ec7t. C\u00e1c d\u1ea1ng t\u1ed3n t\u1ea1i tinh th\u1ec3 c\u1ee7a Si \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng l\u00e0m ch\u1ea5t b\u00e1n d\u1eabn trong ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111i\u1ec7n n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>B\u00e2\u0323t mi\u0301 ca\u0301ch \u0111a\u0301nh bay n\u00f4\u0303i s\u01a1\u0323 m\u00f4n Ho\u0301a ho\u0323c \u2013 Vietlearn<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a Silic<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy r\u1eb1ng c\u0169ng l\u00e0 m\u1ed9t phi kim nh\u01b0ng so v\u1edbi C (cacbon) v\u00e0 Cl (Clorua) th\u00ec Si \u00edt c\u00f3 s\u1ef1 t\u00e1c \u0111\u1ed9ng h\u00f3a h\u1ecdc v\u1edbi ch\u1ea5t kh\u00e1c. \u0110\u1ed1i v\u1edbi h\u00f3a h\u1ecdc 9 s\u1ebd ch\u01b0a h\u1ecdc nhi\u1ec1u t\u1edbi ki\u1ebfn th\u1ee9c v\u1ec1 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a Si. \u0110\u1ebfn l\u1edbp 11, b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c h\u1ecdc nhi\u1ec1u v\u1ec1 t\u00ednh t\u00e1c d\u1ee5ng v\u1edbi phi kim v\u00e0 oxy \u1edf nhi\u1ec1u d\u1ea1ng v\u00e0 \u0111i\u1ec1u ki\u1ec7n kh\u00e1c nhau. Ri\u00eang v\u1ec1 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a Si l\u1edbp 9 ch\u1ec9 n\u00f3i ph\u1ea7n nh\u1ecf v\u1ec1 t\u00e1c d\u1ee5ng v\u1edbi oxy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00f3 l\u00e0 d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t (nhi\u1ec7t \u0111\u1ed9 r\u1ea5t cao) th\u00ec Silic m\u1edbi n\u1ea3y sinh ph\u1ea3n \u1ee9ng v\u1edbi oxy. L\u00fac n\u00e0y s\u1ebd t\u1ea1o ra \u0110i\u00f4x\u00edt silic hay c\u00f2n g\u1ecdi l\u00e0 silica. H\u1ee3p ch\u1ea5t \u0111\u01b0\u1ee3c sinh ra kh\u00ed hi\u1ec7u h\u00f3a h\u1ecdc l\u00e0 Si02.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng tin chung v\u1ec1 Silicat<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi bi\u1ebft v\u1ec1 silicat h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1 ch\u1ea5t Si02. B\u1edfi \u0111\u00e2y s\u1ebd l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 t\u1ea1o th\u00e0nh mu\u1ed1i silicat. Khi t\u00e1c d\u1ee5ng v\u1edbi oxi, silic t\u1ea1o th\u00e0nh SiO2 (\u0110i\u00f4x\u00edt silic). Khi d\u00f9ng \u0110i\u00f4x\u00edt silic \u0111em t\u00e1c d\u1ee5ng v\u1edbi m\u1ed9t dung d\u1ecbch baz\u01a1 hay dung d\u1ee5ng c\u00f3 t\u00ednh ki\u1ec1m s\u1ebd t\u1ea1o th\u00e0nh silicat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng v\u1edbi dung d\u1ecbch baz\u01a1. L\u1ea5y Si t\u00e1c d\u1ee5ng v\u1edbi Natri hidroxit (2NaOH) k\u00e8m theo nhi\u1ec7t \u0111\u1ed9 s\u1ebd t\u1ea1o th\u00e0nh lo\u1ea1i mu\u1ed1i silicat c\u00f3 t\u00ean Natri metasilicat (Na\u2082SiO\u2083 ) v\u00e0 n\u01b0\u1edbc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng v\u1edbi dung d\u1ecbch ki\u1ec1m. L\u1ea5y Si t\u00e1c d\u1ee5ng v\u1edbi Canxi oxit (NaOH) v\u00e0 Natri hydroxit (2NaOH ) k\u00e8m theo nhi\u1ec7t \u0111\u1ed9 s\u1ebd t\u1ea1o th\u00e0nh lo\u1ea1i mu\u1ed1i silicat c\u00f3 t\u00ean canxi silicat k\u00fd hi\u1ec7u l\u00e0 CaSiO3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00f3a h\u1ecdc l\u1edbp 9 t\u1eadp trung ki\u1ebfn th\u1ee9c v\u1ec1 silic. c\u00f4ng nghi\u1ec7p silicat<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng tin v\u1ec1 \u1ee9ng d\u1ee5ng c\u1ee7a silic. c\u00f4ng nghi\u1ec7p silicat \u2013 h\u00f3a h\u1ecdc 9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ec1n c\u00f4ng nghi\u1ec7p silicat l\u00e0 n\u00f3i t\u1edbi l\u0129nh v\u1ef1c d\u00f9ng silic, silicat \u0111\u1ec3 \u1ee9ng d\u1ee5ng v\u00e0o s\u1ea3n xu\u1ea5t c\u00e1c lo\u1ea1i ch\u1ea5t li\u1ec7u kh\u00e1c nhau. Ngay sau \u0111\u00e2y h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1 silic. c\u00f4ng nghi\u1ec7p silicat \u1edf h\u00f3a h\u1ecdc l\u1edbp 9 b\u1ea1n nh\u00e9. Nga\u0300nh c\u00f4ng nghi\u00ea\u0323p na\u0300y bao g\u1ed3m 04 ng\u00e0nh s\u1ea3n xu\u1ea5t nh\u01b0 sau:<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<figure class=\"wp-block-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/10\/gach.jpg\" alt=\"\" class=\"wp-image-2327\" width=\"332\" height=\"242\"\/><\/figure>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ee9 nh\u1ea5t, nga\u0300nh c\u00f4ng nghi\u00ea\u0323p Silicat bao g\u1ed3m s\u1ea3n xu\u1ea5t c\u00e1c lo\u1ea1i \u0111\u1ed3 g\u1ed1m s\u1ee9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c nguy\u00ean li\u1ec7u \u0111\u01b0\u1ee3c d\u00f9ng trong l\u0129nh v\u1ef1c n\u00e0y bao g\u1ed3m 02 lo\u1ea1i l\u00e0 \u0111\u1ea5t s\u00e9t v\u00e0 \u0111\u1ea5t cao lanh (lo\u1ea1i \u0111\u1ea5t s\u00e9t c\u00f3 m\u00e0u tr\u1eafng). Khi s\u1ea3n xu\u1ea5t c\u00e1c lo\u1ea1i \u0111\u1ed3 g\u1ed1m s\u1ee9 s\u1ebd ti\u1ebfp t\u1ee5c chia th\u00e0nh c\u00e1c nh\u00f3m nh\u1ecf h\u01a1n t\u00f9y theo \u0111\u1eb7c \u0111i\u1ec3m, m\u1ee5c \u0111\u00edch, c\u00f4ng d\u1ee5ng. Ch\u1eb3ng h\u1ea1n nh\u01b0 04 lo\u1ea1i bao g\u1ed3m g\u1ed1m s\u1ee9 d\u00f9ng trong x\u00e2y d\u1ef1ng, g\u1ed1m s\u1ee9 d\u00f9ng cho k\u1ef9 thu\u1eadt v\u00e0 c\u00e1c lo\u1ea1i g\u1ed1m s\u1ee9 d\u00f9ng trong d\u00e2n d\u1ee5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mu\u1ed1n s\u1ea3n xu\u1ea5t \u0111\u1ed3 g\u1ed1m s\u1ee9 trong c\u00f4ng nghi\u1ec7p silicat c\u1ea7n tr\u1ea3i qua nhi\u1ec1u c\u00f4ng \u0111o\u1ea1n ch\u00ednh. Tr\u01b0\u1edbc h\u1ebft l\u00e0 x\u1eed l\u00fd c\u00e1c v\u1eadt li\u1ec7u t\u1ea1o th\u00e0nh c\u00e1c h\u00ecnh d\u00e1ng c\u1ea7n d\u00f9ng v\u00e0 \u0111\u01b0\u1ee3c s\u1ea5y kh\u00f4 \u0111\u1ec3 \u0111\u1ecbnh h\u00ecnh t\u1ed1t h\u01a1n. Sau \u0111\u00f3 s\u1ebd cho v\u00e0o l\u00f2 nung v\u1edbi t\u00e1c d\u1ee5ng nhi\u1ec7t cao \u0111\u1ec3 t\u0103ng \u0111\u1ed9 r\u1eafn ch\u1eafc, t\u0103ng kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t c\u1ee7a th\u00e0nh ph\u1ea9m.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/10\/gom.jpg\" alt=\"\" class=\"wp-image-2329\" width=\"417\" height=\"257\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ee9 hai, nga\u0300nh c\u00f4ng nghi\u1ec7p Silicat bao g\u1ed3m s\u1ea3n xu\u1ea5t xi m\u0103ng<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c nguy\u00ean li\u1ec7u \u0111\u01b0\u1ee3c d\u00f9ng trong l\u0129nh v\u1ef1c n\u00e0y bao g\u1ed3m 02 lo\u1ea1i ch\u00ednh l\u00e0 \u0111\u1ea5t s\u00e9t v\u00e0 \u0111\u00e1 v\u00f4i. Mu\u1ed1n s\u1ea3n xu\u1ea5t ra xi m\u0103ng ch\u1ea5t l\u01b0\u1ee3ng c\u1ea7n ti\u1ebfn h\u00e0nh x\u1eed l\u00fd (nghi\u1ec1n nh\u1ecf) v\u00e0 ph\u1ed1i tr\u1ed9n v\u1edbi c\u00e1t\/ n\u01b0\u1edbc. Tr\u1ed9n \u0111\u1ec1u h\u1ed7n h\u1ee3p tr\u00ean th\u00e0nh d\u1ea1ng b\u00f9n l\u1ecfng v\u00e0 \u0111em v\u00e0o l\u00f2 nung. \u0110i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 \u1edf m\u1ee9c 1500 \u0111\u1ed9 c \u0111\u1ec3 h\u1ed7n h\u1ee3p r\u1eafn l\u1ea1i. Ti\u1ebfp t\u1ee5c \u0111\u1ec3 ngu\u1ed9i h\u1ed7n h\u1ee3p, tr\u1ed9n th\u00eam m\u1ed9t s\u1ed1 ph\u1ee5 gia v\u00e0 thu th\u00e0nh ph\u1ea9m l\u00e0 xi m\u0103ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng nghi\u1ec7p silicat bao g\u1ed3m c\u1ea3 vi\u1ec7c s\u1ea3n xu\u1ea5t c\u00e1c lo\u1ea1i xi m\u0103ng<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"774\" height=\"378\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/10\/ly-thuyet-bai-30-silic-cong-nghiep-silicat-hoa-l9.png\" alt=\"\" class=\"wp-image-2330\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/ly-thuyet-bai-30-silic-cong-nghiep-silicat-hoa-l9.png 774w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/ly-thuyet-bai-30-silic-cong-nghiep-silicat-hoa-l9-300x147.png 300w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/ly-thuyet-bai-30-silic-cong-nghiep-silicat-hoa-l9-768x375.png 768w\" sizes=\"(max-width: 774px) 100vw, 774px\" \/><figcaption> C\u00f4ng nghi\u1ec7p silicat bao g\u1ed3m c\u1ea3 vi\u1ec7c s\u1ea3n xu\u1ea5t c\u00e1c lo\u1ea1i xi m\u0103ng <\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ee9 ba, nga\u0300nh c\u00f4ng nghi\u1ec7p Silicat bao g\u1ed3m s\u1ea3n xu\u1ea5t th\u1ee7y tinh<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c nguy\u00ean li\u1ec7u \u0111\u01b0\u1ee3c d\u00f9ng trong l\u0129nh v\u1ef1c n\u00e0y bao g\u1ed3m \u0111\u00e1 v\u00f4i v\u00e0 c\u00e1t th\u1ea1ch anh. \u0110em c\u00e1c nguy\u00ean li\u1ec7u pha tr\u1ed9n v\u1edbi nhau theo c\u00f4ng th\u1ee9c chu\u1ea9n. Sau \u0111\u00f3 mang h\u1ed7n h\u1ee3p v\u00e0o l\u00f2 nung \u1edf nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ec3 thu \u0111\u01b0\u1ee3c th\u1ee7y tinh. Ti\u1ebfp t\u1ee5c \u0111\u1ec3 ngu\u1ed9i v\u00e0 s\u1eed d\u1ee5ng khu\u00f4n \u0111\u1ec3 th\u1ed5i th\u00e0nh c\u00e1c h\u00ecnh d\u00e1ng ph\u00f9 h\u1ee3p v\u1edbi m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"490\" height=\"435\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/10\/684849949.png\" alt=\"\" class=\"wp-image-2332\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/684849949.png 490w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/684849949-300x266.png 300w\" sizes=\"(max-width: 490px) 100vw, 490px\" \/><figcaption> s\u1ea3n xu\u1ea5t th\u1ee7y tinh<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi nh\u1eefng ki\u1ebfn th\u1ee9c tr\u00ean b\u1ea1n s\u1ebd n\u1eafm r\u00f5 h\u01a1n b\u00e0i h\u1ecdc v\u1ec1 silic. c\u00f4ng nghi\u1ec7p silicat \u0111\u01b0\u1ee3c h\u1ecdc trong <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">ch\u01b0\u01a1ng tr\u00ecnh l\u1edbp 9<\/a>. C\u00f9ng xem th\u00eam c\u00e1c b\u00e0i vi\u1ebft kh\u00e1c v\u1ec1 h\u00f3a h\u1ecdc tr\u00ean trang web c\u1ee7a Vietlearn \u0111\u1ec3 c\u00f9ng gi\u1ecfi h\u00f3a h\u01a1n b\u1ea1n nh\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"How To Make Sodium Silicate At Home - DIY Waterglass\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/bW8-RNYmdGw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption>How To Make Sodium Silicate At Home &#8211; DIY Waterglass<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn B\u00e0i h\u1ecdc v\u1ec1 silic. c\u00f4ng nghi\u1ec7p silicat l\u00e0 m\u1ed9t trong nh\u1eefng ki\u1ebfn th\u1ee9c b\u1eaft bu\u1ed9c trong ch\u01b0\u01a1ng tr\u00ecnh l\u1edbp 9. Trong b\u00e0i n\u00e0y t\u1eadp trung l\u00e0m s\u00e1ng t\u1ecf c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn ch\u1ea5t silic v\u00e0 ng\u00e0nh c\u00f4ng nghi\u1ec7p silicat. Nh\u1eefng ki\u1ebfn th\u1ee9c c\u1ea7n bi\u1ebft v\u1ec1 Silic v\u00e0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2324,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[8,4],"tags":[],"class_list":["post-798","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hoa-hoc","category-trung-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/798","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=798"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/798\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media\/2324"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}