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Jeneng Produk: |
Asam isobutyrik |
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CAS: |
79-31-2 |
|
Mf: |
C4h8o2 |
|
Mw: |
88.11 |
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EineCs: |
201-195-7 |
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File mol: |
79-31-2.mol |
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|
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Titik lebur |
-47 ° C |
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Titik Giling |
153-154 ° C (lit.) |
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Kapadhetan |
0,95 g / ml ing 25 ° C (Lit.) |
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Kapadhetan uap |
3.04 (vs udhara) |
|
meksa uap |
1,5 mm Hg (20 ° C) |
|
Indeks Refleksi |
N20 / d 1.393 (lit.) |
|
FEMA |
2222 | Asam isobutyrik |
|
FP |
132 ° F |
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Temp panyimpenan. |
kamar temp |
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kelarutan |
618g / l |
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PKA |
4.84 (ing 20 ℃) |
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Formulir |
Cairan |
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Werna |
Mbusak warna |
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PH |
2.3 (500g / l, h2O, 25 ℃) |
|
Ambu ambu |
0.0015pirp |
|
Watesan Letupan |
1.6-7.3% (v) |
|
Kelarutan banyu |
210 g / l (20 ºc) |
|
Jecfa Nomer |
253 |
|
Merck |
14,5155 |
|
Brn |
635770 |
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Incipey |
Kqnpfqtwmsnap-uhfffaoysa-n |
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Rujukan Database CAS |
79-31-2 (Rujukan Database CAS) |
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Cathetan Kimia NIST |
Asam Proanoic, 2-Methyl- (79-31-2) |
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Sistem Registri EPA |
Isobutyric asam (79-31-2) |
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Kode Hazard |
Xn |
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Pernyataan Resiko |
21/22 |
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Pratelan safety |
23-36 / 37/9-2-24 / 25 |
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Ridadr |
PBB 2529 3 / PG 3 |
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WGK Jerman |
1 |
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RTEK |
Nq4375000 |
|
F |
13 |
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Suhu Autignition |
824 ° F |
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Tsca |
Ya |
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Hazardclass |
3 |
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Packinggroup |
III |
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Kode hs |
29156000 |
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Data Bahan Bahan |
79-31-2 (data bahan-bahan sing mbebayani) |
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Keracunan |
LD50 kanthi lisan ing Kelinci: 266 mg / kg old50 dermal terwelu 475 mg / kg |
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Properties Kimia |
Ora ana warna lumayan Cairan; ambu ora enak ambruk; salah karo banyu; larut alkohol, eter lan sapiturute. |
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Analisis Konten |
Ditemtokake dening Cara analisa analisa konten sing padha "asam butyric (03454)". |
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Keracunan |
Gras (FEMA). |
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Gunakake Watesan |
FEMA FEMA (MG /G): Mecut
Minuman 4.1; Minuman kadhemen 12; Candy 41; panganan panggang 38; Gummy Candy 470;
Margarine 30. |
|
Cara Produksi |
Persiapan saka
asam isobutyrik padha karo asam butyric, sing ditindakake dening
Oksidasi langsung saka Isobotyl Alkohol lan IsobotyRaldehyde. Asam isobutyrik
bisa langsung digawe saka oksidasi Isobotyraldehyde ing udhara utawa
Oksigen. Cara manufaktur liyane duwe isobobirronitera lan hidrolisis lan
hidrogenasi asam metacrylic. Oksidasi saka 2-Methyl-1-Nitropropane nyiyapake
Asam isobutyric uga bisa ngasilake asil sing luwih dhuwur. Purifikasi saka
Asam isobotyric bisa diwujudake kanthi distilasi azeotropik nganggo banyu, lan
Asam isobutyric anhydrory bisa dipikolehi dening distilasi ekstrak saka
Karbon Tetrachloride. Ester Asam Propylene lan Formis Bisa Reaksi ing 50 ° C
Katalisis asam hidrofluoric kanggo ngasilake metilis lan propyl
Isoberyrate. |
|
Informasi & Informasi Safety |
Cara produksi: ucobymatri bisa
asale saka oksidasi saka Isobobanol. |
|
Katrangan |
Asam isobutyric Ambu lan rasa sing padha karo asam n-butyric. Disiapake liwat oksidasi saka Isobotyl Alkohol. |
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Properties Kimia |
Asam isobutyric ambu ora enak sing kuat butter rancid. Ambu ora enak padha karo asam n-butyric. |
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Properties Kimia |
Mbusak warna Cairan |
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Nggunakake |
Asam isobotyrik yaiku Agen rasa sing ora ana warna tanpa warna kanthi ambu sing ora enak, nembus, meh padha karo butter. Kasedhiya ing alkohol, propylene glycol, gliserin, Minyak mineral, lan minyak paling gedhe lan sithik ora ana ing banyu. Iki dijupuk dening Sintesis kimia. Iki uga diarani asam isopropik. |
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Nggunakake |
Pabrik saka ester kanggo pelarut, rasa lan wangi dhasar, agen disinfecting, varnish, Deliming Hides, Agen Penyamakan. |
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Definisi |
Chebi: cabang Asam lemak sing kalebu asam proanois sing nggawa cabang metil ing C-2. |
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Preparation |
Dening oksidasi saka Isobotyl Alkohol. |
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Nilai ambang Aroma |
Deteksi: 10 ppb menyang 9.5 ppm; Karakteristik Aroma ing 10 ppm: pungen asam, buttery susu lan cheesy kanthi tumindak fruity. |
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Nilai ambang rasa |
Rasa Karakteristik ing 15 ppm: Ikan susu, krim, krime, keju, bencana nuance. |
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Katrangan Umum |
Cairan tanpa warna Kanthi ambu ora enak saka butter rancid. Flash Point 132 ° F. Kapadhetan 7.9 lb / gal. Corrosive kanggo logam lan jaringan. |
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Reaksi Air & Banyu |
Flammable. Banyu larut |
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Profil reaktivitas |
Asam isobutyrik Corrode aluminium lan logam liyane. Gas hidrogen sing bisa dibakar bisa dikumpulake ing Spasi terlampir ing reaksi iki wis ditindakake [USCG, 1999]. |
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Bahaya |
Beracun kanthi diestion, kuwat gulu ing jaringan. |
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Bahaya Kesehatan |
Panyebab inhalasi gangguan irung lan tenggorokan. Ingestion nyebabake gangguan cangkeme lan weteng. Kontak karo mripat utawa kulit nyebabake gangguan. |
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Bahaya geni |
Flammable / Chemusible materi. Bisa uga dilalekake dening panas, cemara utawa geni. Uap bisa mbentuk bledosan campuran karo udhara. Vapor bisa uga lelungan menyang sumber kontak lan lampu kilat mburi. Umume uap luwih abot tinimbang udhara. Dheweke bakal nyebar ing sadawane lan ngumpulake Ing wilayah sing kurang utawa diikat (tukang jahit, ruang paling ngisor, tank). Bahan-bahan Jeblugan Vapor Ing njero ruangan, ing njobo utawa ing tukang jahit. Runoff kanggo tukang jahit bisa nggawe geni utawa bledosan Bahaya. Wadhah kontan bisa njeblug nalika digawe panas. Akeh cairan luwih entheng tinimbang banyu. |
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Metode pemurnian |
Distil asam saka KmNo4, banjur redistil saka P2O5. [BEILSEEIN 2 H 288, 2 I 126, 2 II 257, 2 III 637, 2 IV 843.] |
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Produk Preparation |
Permethrin -> Gemfibrozil -> CapTopril -> Isobotysl Chloride -> Ehobenprox -> Ethofenprox -> Ethofenprox -> 4- (3-isopylpyL-5-YL) Piperidin-5-Yl) Piperl Isobotysrate -> Tert-Butyl PeroxyPivalate -> Etyl 4,6,6-trichloro-3,3-dimethyloro-hex-5-enyat -> Isobotyramide -> Isobisyl Isobitire -> 2- (4-ethokrapi -> 2-Bromo-2-Methylplopionyl Bromide -> Etyl 2- (2-aminothiazole-4-yl) -2- (1-tert-butoxycarbonyl-1-metelethoxyimino) Acetate -> P-Tolyl Isobotyrate -> P-Tolyl Isobotysrate -> octyl Isobutrate -> heptyl Isobotysrate -> Cinnamyl Isobotysrate -> Etyl 2-Bromoisoburyurtrate -> HEXYL IsBotysrate |
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Bahan mentah |
Karbon Tetrachloride -> Hydrazlium hidroksida -> Asam hidrofluoric -> 2-metil-1-propanl-3- (1-fenyletathoxy) -4-phenidinone -> Methacrylic asam -> Isobotyraldehyde -> (-) - Monthyll Chloroforrile -> Dizinon -> Thetyramidine -> ISOPENTLYL Isobotyrate -> Octyl Isobotysrate -> Octyl Isobotysrate |