{"id":16024,"date":"2025-09-25T07:23:48","date_gmt":"2025-09-25T07:23:48","guid":{"rendered":"https:\/\/www.epicmicron.com\/?p=16024"},"modified":"2025-09-25T07:31:27","modified_gmt":"2025-09-25T07:31:27","slug":"antimony-trioxide-glass-clarifying-agent","status":"publish","type":"post","link":"https:\/\/www.epicmicron.com\/vi\/antimony-trioxide-glass-clarifying-agent\/","title":{"rendered":"Antimon Trioxide \u2013 Ch\u1ea5t l\u00e0m trong th\u1ee7y tinh"},"content":{"rendered":"

Antimon trioxide l\u00e0 g\u00ec?<\/h2>\n\n\n\n

Antimon trioxide (Sb\u2082O\u2083) c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng ph\u00e2n t\u1eed l\u00e0 291,5, m\u1eadt \u0111\u1ed9 5,1 g\/cm\u00b3, nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y l\u00e0 656\u00b0C v\u00e0 nhi\u1ec7t \u0111\u1ed9 s\u00f4i l\u00e0 1425\u00b0C. N\u00f3 c\u00f3 th\u1ec3 th\u0103ng hoa trong \u0111i\u1ec1u ki\u1ec7n ch\u00e2n kh\u00f4ng cao \u1edf 400\u00b0C. Antimon trioxide l\u00e0 b\u1ed9t tinh th\u1ec3 m\u00e0u tr\u1eafng, trong c\u00f4ng nghi\u1ec7p \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 antimon tr\u1eafng. N\u00f3 \u00edt tan trong n\u01b0\u1edbc, axit sunfuric lo\u00e3ng v\u00e0 axit nitric lo\u00e3ng, nh\u01b0ng tan trong axit clohydric, axit sunfuric \u0111\u1eadm \u0111\u1eb7c, ki\u1ec1m m\u1ea1nh v\u00e0 dung d\u1ecbch axit tartaric.<\/p>\n\n\n\n

B\u1ea3n th\u00e2n antimon trioxide ch\u1ea5t l\u01b0\u1ee3ng cao c\u00f3 \u0111\u1ed9c t\u00ednh th\u1ea5p. Tuy nhi\u00ean, antimon trioxide ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p c\u00f3 th\u1ec3 g\u00e2y \u0111\u1ed9c t\u00ednh nh\u1eb9, ch\u1ee7 y\u1ebfu do h\u00e0m l\u01b0\u1ee3ng asen trioxide (As\u2082O\u2083) qu\u00e1 cao. Ti\u1ebfp x\u00fac v\u1edbi antimon trioxide c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c tri\u1ec7u ch\u1ee9ng nh\u01b0 ng\u1ee9a tay v\u00e0 c\u00e1nh tay \u1edf ng\u01b0\u1eddi v\u1eadn h\u00e0nh.<\/p>\n\n\n\n

C\u01a1 ch\u1ebf l\u00e0m trong c\u1ee7a antimon trioxide t\u01b0\u01a1ng t\u1ef1 nh\u01b0 asen trioxide. \u0110\u00e2y l\u00e0 m\u1ed9t ch\u1ea5t l\u00e0m trong \u0111a n\u0103ng v\u1edbi m\u1eadt \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed1i cao. N\u00f3 chuy\u1ec3n t\u1eeb oxit cao h\u01a1n sang oxit th\u1ea5p h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u0111\u1eb7c bi\u1ec7t t\u1ed1t trong c\u00e1c lo\u1ea1i th\u1ee7y tinh ch\u1ee9a h\u00e0m l\u01b0\u1ee3ng ch\u00ec oxit (PbO) ho\u1eb7c bari oxit (BaO) cao.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u1ee8ng d\u1ee5ng c\u1ee7a Antimon trioxide<\/h2>\n\n\n\n

Do t\u00ednh d\u1ec5 bay h\u01a1i, Sb\u2082O\u2083 kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ri\u00eang l\u1ebb nh\u01b0 m\u1ed9t ch\u1ea5t l\u00e0m trong. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi c\u00e1c ch\u1ea5t oxy h\u00f3a nh\u01b0 natri nitrat (NaNO\u2083) ho\u1eb7c kali nitrat (KNO\u2083). <\/p>\n\n\n\n

Trong th\u1ee7y tinh silicat soda-v\u00f4i, h\u1ed7n h\u1ee3p Sb\u2082O\u2083 (0,18% \u0111\u1ebfn 0,5%) v\u1edbi natri nitrat (4 \u0111\u1ebfn 8 l\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a n\u00f3) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t l\u00e0m trong. \u1ede nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n, n\u00f3 ph\u1ea3n \u1ee9ng v\u1edbi oxy \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng t\u1eeb qu\u00e1 tr\u00ecnh ph\u00e2n h\u1ee7y natri nitrat \u0111\u1ec3 t\u1ea1o th\u00e0nh antimon pentoxit (Sb\u2082O\u2085). \u1ede nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n m\u1ed9t ch\u00fat, Sb\u2082O\u2085 ph\u00e2n h\u1ee7y, gi\u1ea3i ph\u00f3ng oxy. Oxy c\u00f3 ho\u1ea1t t\u00ednh cao n\u00e0y khu\u1ebfch t\u00e1n v\u00e0o c\u00e1c b\u1ecdt kh\u00ed thu\u1ed9c nhi\u1ec1u lo\u1ea1i kh\u00e1c nhau trong th\u1ee7y tinh n\u00f3ng ch\u1ea3y, khi\u1ebfn c\u00e1c b\u1ecdt kh\u00ed n\u00e0y n\u1edf ra v\u00e0 tho\u00e1t ra kh\u1ecfi kh\u1ed1i th\u1ee7y tinh n\u00f3ng ch\u1ea3y, do \u0111\u00f3 th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh l\u00e0m trong th\u1ee7y tinh. C\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc nh\u01b0 sau:<\/p>\n\n\n\n

2Sb\u2082O\u2083 + O\u2082 (t\u1eeb NaNO\u2083) \u2192 2Sb\u2082O\u2085<\/p>\n\n\n\n

2Sb\u2082O\u2085 \u2192 2Sb\u2082O\u2083 + O\u2082]<\/p>\n\n\n\n

Trong th\u1ee7y tinh silicat soda-v\u00f4i, n\u1ebfu s\u1eed d\u1ee5ng antimon trioxide 0,2% c\u00f9ng v\u1edbi asen trioxide 0,2% (As\u2082O\u2083), hi\u1ec7u qu\u1ea3 l\u00e0m trong \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng. \u0110i\u1ec1u n\u00e0y l\u00e0 do Sb\u2082O\u2085 gi\u1ea3i ph\u00f3ng oxy \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n, trong khi asen pentoxit (As\u2082O\u2085) gi\u1ea3i ph\u00f3ng oxy \u1edf nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u00e0m trong ho\u1ea1t \u0111\u1ed9ng trong to\u00e0n b\u1ed9 d\u1ea3i nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y, gi\u00fap ng\u0103n ng\u1eeba s\u1ef1 h\u00ecnh th\u00e0nh b\u1ecdt kh\u00ed th\u1ee9 c\u1ea5p. Tuy nhi\u00ean, khi s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p Sb\u2082O\u2083\/As\u2082O\u2083 trong th\u1ee7y tinh ch\u00ec, l\u01b0\u1ee3ng qu\u00e1 nhi\u1ec1u c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng h\u00ecnh th\u00e0nh tinh th\u1ec3 asenat v\u00e0 antimonat, g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng m\u1edd \u0111\u1ee5c trong th\u1ee7y tinh.<\/p>\n\n\n\n

\u0110\u1ec3 s\u1ea3n xu\u1ea5t k\u00ednh hoa v\u0103n n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a b\u1ed9t oxit antimon \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ea3i \u0111\u00e1p \u1ee9ng ho\u1eb7c v\u01b0\u1ee3t qu\u00e1 c\u00e1c y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi C\u1ea5p Sb\u2082O\u2083 99,50 \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong Ti\u00eau chu\u1ea9n qu\u1ed1c gia Trung Qu\u1ed1c GB\/T 4062-2013.<\/p>\n\n\n\n

M\u1ed9t \u0111i\u1ec1u quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd khi s\u1eed d\u1ee5ng antimon trioxide l\u00e0 th\u1ee7y tinh ch\u1ee9a Sb\u2082O\u2083 c\u00f3 th\u1ec3 chuy\u1ec3n sang m\u00e0u v\u00e0ng nh\u1ea1t khi ti\u1ebfp x\u00fac v\u1edbi tia c\u1ef1c t\u00edm ho\u1eb7c \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi. (Ng\u01b0\u1ee3c l\u1ea1i, th\u1ee7y tinh ch\u1ee9a asen trioxide c\u00f3 th\u1ec3 chuy\u1ec3n sang m\u00e0u n\u00e2u s\u1eabm).<\/p>\n\n\n\n

T\u1ea1i sao Antimon Trioxide c\u1ea7n \u0111\u01b0\u1ee3c nghi\u1ec1n si\u00eau m\u1ecbn?<\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Vi\u1ec7c nghi\u1ec1n si\u00eau m\u1ecbn antimon trioxide l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t ch\u1ed1ng ch\u00e1y c\u1ee7a n\u00f3. K\u00edch th\u01b0\u1edbc h\u1ea1t c\u00e0ng m\u1ecbn, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u00e0ng l\u1edbn, gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n v\u00e0 ph\u1ea3n \u1ee9ng trong n\u1ec1n polyme v\u00e0 d\u1ec7t may. C\u00e1c th\u00f4ng s\u1ed1 ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec3n h\u00ecnh c\u1ee7a b\u1ed9t antimon trioxide bao g\u1ed3m \u0111\u1ed9 tinh khi\u1ebft cao (~99,8%), \u0111\u1ed9 tr\u1eafng (~96,5%) v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh d\u01b0\u1edbi 4 micron \u0111\u1ec3 \u1ee9ng d\u1ee5ng hi\u1ec7u qu\u1ea3. Vi\u1ec7c \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t si\u00eau m\u1ecbn \u0111\u1ed3ng \u0111\u1ec1u s\u1ebd t\u0103ng c\u01b0\u1eddng hi\u1ec7u qu\u1ea3 ch\u1ed1ng ch\u00e1y hi\u1ec7p \u0111\u1ed3ng khi k\u1ebft h\u1ee3p v\u1edbi ch\u1ea5t ch\u1ed1ng ch\u00e1y halogen, gi\u00fap gi\u1ea3m l\u01b0\u1ee3ng ph\u1ee5 gia c\u1ea7n thi\u1ebft v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 chi ph\u00ed c\u0169ng nh\u01b0 hi\u1ec7u su\u1ea5t.\u00a0<\/p>\n\n\n\n

T\u1ea1i sao n\u00ean s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n kh\u00ed n\u00e9n cho Antimon Trioxide?<\/h2>\n\n\n\n

Air jet milling (Air jet milling) is especially suitable for antimony trioxide pulverization due to several technical advantages:<\/p>\n\n\n\n

N\u00f3 cho ph\u00e9p x\u1eed l\u00fd kh\u00f4, gi\u00fap gi\u1ea3m thi\u1ec3u \u00f4 nhi\u1ec5m v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 m\u00f4i tr\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn qu\u00e1 tr\u00ecnh nghi\u1ec1n \u01b0\u1edbt.<\/p>\n\n\n\n

Qu\u00e1 tr\u00ecnh n\u00e0y cho ph\u00e9p nghi\u1ec1n v\u00e0 ph\u00e2n lo\u1ea1i \u0111\u1ed3ng th\u1eddi, \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 ph\u00e2n b\u1ed5 k\u00edch th\u01b0\u1edbc h\u1ea1t ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

M\u00e1y nghi\u1ec1n kh\u00ed c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc h\u1ea1t si\u00eau m\u1ecbn m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u <5 micron th\u01b0\u1eddng th\u1ea5y trong c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ed1ng ch\u00e1y.<\/p>\n\n\n\n

C\u00f4ng ngh\u1ec7 n\u00e0y t\u1ea1o ra \u00edt nhi\u1ec7t h\u01a1n trong qu\u00e1 tr\u00ecnh nghi\u1ec1n, gi\u00fap gi\u1ea3m nguy c\u01a1 ph\u00e2n h\u1ee7y do nhi\u1ec7t ho\u1eb7c thay \u0111\u1ed5i th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

H\u1ec7 th\u1ed1ng m\u1ea1ch k\u00edn c\u1ee7a n\u00f3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 an to\u00e0n khi x\u1eed l\u00fd c\u00e1c lo\u1ea1i b\u1ed9t c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y \u0111\u1ed9c nh\u01b0 b\u1ee5i antimon trioxide.\u00a0<\/p>\n\n\n\n

\"nh\u00e0
nh\u00e0 m\u00e1y ph\u1ea3n l\u1ef1c<\/figcaption><\/figure>\n\n\n\n

Nh\u1eefng c\u00e2n nh\u1eafc quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh nghi\u1ec1n b\u1eb1ng tia kh\u00ed Antimon Trioxide<\/h2>\n\n\n\n

Khi nghi\u1ec1n antimon trioxide trong m\u00e1y nghi\u1ec1n kh\u00ed n\u00e9n, c\u1ea7n l\u01b0u \u00fd:<\/p>\n\n\n\n

Ki\u1ec3m so\u00e1t b\u1ee5i v\u00e0 an to\u00e0n cho ng\u01b0\u1eddi lao \u0111\u1ed9ng: Antimon trioxide b\u1ecb nghi ng\u1edd l\u00e0 ch\u1ea5t g\u00e2y ung th\u01b0, do \u0111\u00f3, h\u1ec7 th\u1ed1ng ng\u0103n ch\u1eb7n v\u00e0 h\u00fat b\u1ee5i hi\u1ec7u qu\u1ea3 l\u00e0 t\u1ed1i quan tr\u1ecdng.<\/p>\n\n\n\n

Ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc h\u1ea1t: \u0110i\u1ec1u ch\u1ec9nh b\u1ed9 ph\u00e2n lo\u1ea1i ch\u00ednh x\u00e1c \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m \u0111\u00e1p \u1ee9ng c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, th\u01b0\u1eddng nh\u1eafm m\u1ee5c ti\u00eau v\u00e0o ph\u1ea1m vi k\u00edch th\u01b0\u1edbc h\u1eb9p kho\u1ea3ng 2-3 micron.<\/p>\n\n\n\n

Ch\u1ea5t l\u01b0\u1ee3ng nguy\u00ean li\u1ec7u \u0111\u1ea7u v\u00e0o: K\u00edch th\u01b0\u1edbc nguy\u00ean li\u1ec7u \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ed9 \u1ea9m \u0111\u1ed3ng \u0111\u1ec1u gi\u00fap t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u qu\u1ea3 nghi\u1ec1n v\u00e0 t\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n: T\u00ednh ch\u1ea5t m\u00e0i m\u00f2n c\u1ee7a b\u1ed9t kho\u00e1ng \u0111\u00f2i h\u1ecfi c\u00e1c th\u00e0nh ph\u1ea7n nghi\u1ec1n v\u00e0 ph\u00e2n lo\u1ea1i b\u1ec1n b\u1ec9 \u0111\u1ec3 duy tr\u00ec hi\u1ec7u su\u1ea5t.<\/p>\n\n\n\n

C\u00e1c th\u00f4ng s\u1ed1 quy tr\u00ecnh: T\u1ed1i \u01b0u h\u00f3a v\u1eadn t\u1ed1c lu\u1ed3ng kh\u00ed, t\u1ed1c \u0111\u1ed9 ph\u00e2n lo\u1ea1i v\u00e0 \u00e1p su\u1ea5t nghi\u1ec1n gi\u00fap c\u00e2n b\u1eb1ng n\u0103ng su\u1ea5t v\u00e0 \u0111\u1ed9 m\u1ecbn si\u00eau m\u1ecbn.\u00a0<\/p>\n\n\n\n

\"gi\u01b0\u1eddng<\/figure>\n\n\n\n

M\u00e1y b\u1ed9t EPIC<\/h2>\n\n\n\n

EPIC Powder Machinery\u2019s m\u00e1y nghi\u1ec1n kh\u00ed n\u00e9n<\/a> H\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n kh\u1eaft khe c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p antimon trioxide. M\u00e1y nghi\u1ec1n lu\u1ed3ng kh\u00ed c\u1ee7a ch\u00fang t\u00f4i c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c:<\/p>\n\n\n\n

K\u00edch th\u01b0\u1edbc h\u1ea1t lu\u00f4n n\u1eb1m trong kho\u1ea3ng 1-3 micron v\u1edbi ph\u00e2n b\u1ed1 h\u1eb9p \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 ch\u1ed1ng ch\u00e1y v\u01b0\u1ee3t tr\u1ed9i.<\/p>\n\n\n\n

N\u0103ng su\u1ea5t cao v\u1edbi c\u00f4ng ngh\u1ec7 nghi\u1ec1n ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng.<\/p>\n\n\n\n

H\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t b\u1ee5i v\u00e0 an to\u00e0n m\u1ea1nh m\u1ebd \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u1ec1 s\u1ee9c kh\u1ecfe ngh\u1ec1 nghi\u1ec7p.<\/p>\n\n\n\n

C\u00e1c th\u00e0nh ph\u1ea7n b\u00ean trong ch\u1ed1ng m\u00e0i m\u00f2n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho b\u1ed9t kho\u00e1ng m\u00e0i m\u00f2n.<\/p>\n\n\n\n

Quy tr\u00ecnh ki\u1ec3m so\u00e1t c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh cho ph\u00e9p kh\u00e1ch h\u00e0ng t\u1ed1i \u01b0u h\u00f3a c\u00e1c th\u00f4ng s\u1ed1 cho c\u00e1c y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

Kh\u00e1ch h\u00e0ng \u0111\u00e3 ch\u1ee9ng ki\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n, gi\u1ea3m li\u1ec1u l\u01b0\u1ee3ng ph\u1ee5 gia trong c\u00e1c \u1ee9ng d\u1ee5ng cu\u1ed1i c\u00f9ng v\u00e0 ti\u1ebft ki\u1ec7m t\u1ed5ng chi ph\u00ed x\u1eed l\u00fd khi s\u1eed d\u1ee5ng m\u00e1y nghi\u1ec1n kh\u00ed n\u00e9n EPIC \u0111\u1ec3 s\u1ea3n xu\u1ea5t b\u1ed9t antimon trioxide.<\/p>\n\n\n\n

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