Butyraldehyde CAS Nr 123-72-8
| Hazard Cov Cim | F - Flammable |
| Risk Codes | R11 - Cov nplaim hluav taws kub heev |
| Kev nyab xeeb piav qhia | S9 - Khaws lub thawv rau hauv qhov chaw muaj cua zoo. S29 - Tsis txhob muab tso rau hauv qhov dej. S33 - Siv cov kev tiv thaiv kev tiv thaiv zoo li qub. S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. |
| UN IDs | UN 1129 3/PG 2 |
| WGK Germany | 1 |
| RTECS | ES 2275 000 |
| FLUKA BRAND F CODE | 13-23 |
| TSCA | Yog lawm |
| HS Code | 2912 19 00 Nws |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | Ib koob LD50 nyob rau hauv nas: 5.89 g / kg (Smyth) |
Taw qhia
tshuaj muaj zog
Colorless pob tshab flammable kua nrog asphyxiating aldehyde tsw. Me ntsis soluble hauv dej. Miscible nrog ethanol, ether, ethyl acetate, acetone, toluene, ntau yam organic solvents thiab roj.
Siv
Siv rau hauv cov organic synthesis thiab cov khoom siv raw rau kev ua txuj lom
Siv
GB 2760-96 qhia txog cov txuj lom uas tau txais kev tso cai siv. Feem ntau yog siv los npaj bananas, caramel thiab lwm yam txiv hmab txiv ntoo flavors.
Siv
butyraldehyde yog ib qho tseem ceeb nruab nrab. n-butanol tuaj yeem tsim los ntawm hydrogenation ntawm n-butanal; 2-ethylhexanol tuaj yeem tsim los ntawm kev ua kom lub cev qhuav dej thiab tom qab ntawd hydrogenation, thiab n-butanol thiab 2-ethylhexanol yog cov khoom siv tseem ceeb ntawm cov yas yas. n-butyric acid tuaj yeem tsim los ntawm oxidation ntawm n-butyric acid; trimethylolpropane tuaj yeem tsim los ntawm condensation nrog formaldehyde, uas yog ib qho plasticizer rau synthesis ntawm alkyd resin thiab raw khoom rau huab cua kom qhuav roj; condensation nrog phenol los tsim cov roj-soluble resin; condensation nrog urea tuaj yeem tsim cov dej cawv-soluble resin; cov khoom condensed nrog polyvinyl cawv, butylamine, thiourea, diphenylguanidine los yog methyl carbamate yog raw cov ntaub ntawv thiab, condensation nrog ntau yam cawv yog siv los ua ib qho hnyav rau celluloid, resin, roj hmab thiab cov khoom siv tshuaj; Kev lag luam kws tshuaj yog siv los ua "Mianerton", "pyrimethamine", thiab amylamide.
Siv
Roj hmab kua nplaum, roj hmab accelerator, hluavtaws resin ester, manufacturing butyric acid, thiab lwm yam. Nws cov tshuaj hexane yog ib qho reagent rau kev txiav txim siab ozone. Siv los ua ib qho hnyav rau lipids, kuj siv rau hauv kev npaj ntawm flavors thiab fragrances thiab raws li ib tug preservative.
Txoj kev tsim khoom
tam sim no, cov txheej txheem ntawm butyraldehyde tau txais cov txheej txheem hauv qab no: 1. propylene carbonyl synthesis method propylene thiab synthesis gas nqa tawm carbonyl synthesis cov tshuaj tiv thaiv nyob rau hauv lub xub ntiag ntawm Co los yog Rh catalyst los tsim n-butyraldehyde thiab isobutyraldehyde. Vim yog cov catalysts sib txawv thiab cov txheej txheem siv, nws tuaj yeem muab faib ua cov khoom siv hluav taws xob siab carbonyl nrog cobalt carbonyl ua catalyst thiab low-pressure carbonyl synthesis nrog rhodium carbonyl phosphine complex li catalyst. Txoj kev kub siab muaj cov tshuaj tiv thaiv siab thiab ntau yam khoom los ntawm cov khoom, yog li ua rau cov nqi ntau lawm. Cov txheej txheem qis carbonyl synthesis muaj cov tshuaj tiv thaiv tsis tshua muaj siab, qhov zoo isomer piv ntawm 8-10: 1, tsawg dua los ntawm cov khoom, kev hloov pauv siab, cov khoom siv tsis tshua muaj zog, siv hluav taws xob tsawg, cov khoom siv yooj yim, cov txheej txheem luv luv, qhia txog kev lag luam zoo thiab kev loj hlob sai. 2. Acetaldehyde condensation txoj kev. 3. Butanol oxidative dehydrogenation txoj kev siv nyiaj los ua ib qho catalyst, thiab butanol yog oxidized los ntawm huab cua hauv ib kauj ruam, thiab tom qab ntawd cov reactants yog condensed, sib cais, thiab rectified kom tau cov khoom tiav.
Txoj kev tsim khoom
Nws yog tau los ntawm qhuav distillation ntawm calcium butyrate thiab calcium formate.
Lub vapor yog tau los ntawm dehydrogenation ntawm lub catalyst.
qeb
flammable kua
Kev faib tawm toxicity
Tshuaj lom
mob toxicity
Qhov ncauj-rat LD50: 2490 mg/kg; Abdominal-nas LD50: 1140 mg/kg
Cov ntaub ntawv txhawb nqa
tawv nqaij-liab 500 mg / 24 teev hnyav; Qhov muag-luav 75 micrograms hnyav
Cov yam ntxwv ntawm kev phom sij tawg
Nws tuaj yeem tawg thaum sib xyaw nrog huab cua; Nws reacts hnyav nrog chlorosulfonic acid, nitric acid, sulfuric acid, thiab fuming sulfuric acid.
flammability tej yam ntxwv
Nws yog flammable nyob rau hauv cov ntaub ntawv ntawm qhib nplaim taws, siab kub, thiab oxidants; combustion ua rau irritating pa luam yeeb
khaws cia thiab kev thauj mus los yam ntxwv
Lub warehouse yog ventilated thiab qhuav ntawm tsawg kub; khaws cia cais los ntawm oxidants thiab acids
Tus neeg tua hluav taws tua hluav taws
Cov hmoov qhuav, carbon dioxide, ua npuas ncauj
cov qauv kev ua haujlwm
STEL 5 mg/m3
