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khoom

Butyl acetate CAS Nr 123-86-4

Chemical Property:

Molecular Formula C6H12O2
Molar Mass 116.16 Nws
Qhov ntom 0.88 g / mL ntawm 25 ° C (lit.)
Melting Point -78 ° C (lit.)
Boling Point 124-126 ° C (lit.)
Flash Point 74 ° F
JECFA Number 127
Dej Solubility 0.7 g / 100 mL (20 ºC) yog '
Solubility 5.3g / l
Vapor Siab 15 hli Hg (25 ° C)
Vapor Density 4 (vs huab cua)
Qhov tshwm sim Ua kua
Specific Gravity 0.883 (20/20 ℃)
Xim ≤10 (APH)
tsw Yam ntxwv; pom zoo fruity (nyob rau hauv tsawg concentrations); tsis residual.
Exposure Limit TLV-TWA 150 ppm (~710 mg/m3) (ACGIH, MSHA, and OSHA); TLV-STEL 200 ppm (~ 950 mg/m3); IDLH 10,000 ppm (NIOSH).
Qhov siab tshaj plaws wavelength (λmax) ['λ: 254 nm Amax: 1.0',
, 'λ: 260 nm Amax: 0.20',
, 'λ: 275 nm Amax: 0.04',
ib: 300
Merck 14, 1535 Ib
BRN 1741921 ib
PH 6.2 (5.3g / l, H2O, 20 ℃) ​​(External MSDS)
Kev cia khoom Khaws ntawm +5 ° C rau + 30 ° C.
Kev ruaj ntseg ruaj khov. Flamable. Incompatible nrog muaj zog oxidizing neeg sawv cev, muaj zog acids, muaj zog bases.
Explosive txwv 1.4-7.5% (V)
Refractive Index n20/D 1.394 (lit.)
Physical thiab Chemical Properties Colorless flammable kua nrog qab ntxiag txiv hmab txiv ntoo aroma.
Kub taw tes 126 ℃
qhov chaw khov kho -77.9 ℃
txheeb ze ntom ntom 0.8825
Refractive Index 1.3951
flash point 33 ℃
solubility, cov kuab tshuaj organic xws li ether yog miscible, thiab yog soluble hauv dej tsawg dua li homolog qis.
kua tsis muaj xim nrog txiv hmab txiv ntoo aroma. Cov txheeb ze ntom ntom (20 ℃ / 4 ℃) 0.8825, qhov chaw khov -73.5 ℃, kub taw tes 126.11 ℃, Flash Point (qhib) 33 ℃, ignition point 421 ℃, refractive index 1. 3941, tshwj xeeb kub peev (20 deg C) 1 91KJ / (kg, K), cov viscosity (20 ° C) 0.734mPas, solubility parameter delta = 8.5. Soluble nyob rau hauv cawv, ketone, ether thiab lwm yam organic solvents, me ntsis soluble nyob rau hauv dej. Thaum tshav kub kub, qhib nplaim taws, oxidant tau ua rau muaj kev pheej hmoo ntawm combustion. Cov vapor tsim ib qho kev sib tov sib xyaw nrog huab cua nrog kev txwv tawg ntawm 1.4% -8.0% (vol). Tsawg toxicity, anesthesia thiab irritation, siab tshaj plaws tso cai concentration nyob rau hauv cov huab cua 300mg / m3(los yog 0.015%).
Siv Rau colloids, nitrocellulose, kua roj vanish, tawv, tshuaj, yas thiab txuj lom kev lag luam. Nws yog cov organic hnyav heev, uas tuaj yeem yaj Rosin, polyvinyl acetate, polyacrylate, polyvinyl chloride, chlorinated roj hmab, Eucommia ulmoides gum, polymethyl methacrylate thiab lwm yam.

Product Detail

Khoom cim npe

Risk Codes R10 - Flammable
R66 - Rov ua dua tuaj yeem ua rau tawv nqaij qhuav lossis tawg
R67 - Vapors tuaj yeem ua rau qaug zog thiab kiv taub hau
Kev nyab xeeb piav qhia S25 - Tsis txhob sib cuag nrog lub qhov muag.
UN IDs UN 1123 3/PG 3
WGK Germany 1
RTECS AB 7350000
TSCA Yog lawm
HS Code 2915 33 00 Nws
Hazard Class 3
Packing Group III
Toxicity LD50 ntawm qhov ncauj hauv nas: 14.13 g / kg (Smyth)

 

Taw qhia

Butyl acetate, tseem hu ua butyl acetate, yog cov kua tsis muaj xim nrog cov ntxhiab tsw uas tsis muaj dej-soluble. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm butyl acetate:

Zoo:

- Cov tsos mob: tsis muaj xim pob tshab kua

Cov mis mos molecular: C6H12O2

- Molecular Luj: 116.16

- Ceev: 0.88 g / mL ntawm 25 ° C (lit.)

- Kub Point: 124-126 ° C (lit.)

Melting Point: -78 ° C (lit.)

- Solubility: me ntsis soluble hauv dej, soluble nyob rau hauv ntau cov organic solvents

Siv:

- Cov ntawv thov kev lag luam: Butyl acetate yog ib qho tseem ceeb ntawm cov organic hnyav, uas yog siv dav hauv cov xim, txheej, kua nplaum, inks thiab lwm yam kev lag luam.

- Cov tshuaj tiv thaiv tshuaj: Nws kuj tuaj yeem siv los ua substrate thiab hnyav hauv cov organic synthesis rau kev npaj ntawm lwm cov organic tebchaw.

Txoj kev:

Kev npaj ntawm butyl acetate feem ntau yog tau los ntawm esterification ntawm acetic acid thiab butanol, uas yuav tsum tau siv cov kua qaub catalysts xws li sulfuric acid los yog phosphoric acid.

Cov ntaub ntawv kev nyab xeeb:

- Tsis txhob nqus pa, tiv thaiv daim tawv nqaij thiab noj, thiab hnav cov hnab looj tes tiv thaiv, tsom iav thiab daim npog ntsej muag thaum siv.

- Siv nyob rau hauv qhov chaw uas muaj qhov cua zoo thiab tsis txhob cuam tshuam ntev rau qhov siab siab.

- Khaws kom deb ntawm qhov hluav taws kub thiab oxidants kom lawv ruaj khov.

 


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