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Octanoic acid CAS Nr 124-07-2

Chemical Property:

Molecular Formula C8H16O2
Molar Mass 144.21 Nws
Qhov ntom 0.91g / mLat 25 ° C (lit.)
Melting Point 16 ° C
Boling Point 237 ° C (lit.)
Flash Point > 230 ° F
JECFA Number 99
Dej Solubility 0.68 g / L (20 ºC)
Solubility Me ntsis soluble hauv dej txias, soluble hauv dej kub thiab feem ntau cov organic solvents xws li ethanol thiab ether.
Vapor Siab 1 hli Hg (78 ° C)
Vapor Density 5 (vs huab cua)
Qhov tshwm sim Colorless rau lub teeb daj kua
Specific Gravity 0.910 (20/4 ℃)
Xim Ntshiab xim tsis muaj xim rau daj
tsw tsis kaj siab tsw
Merck 14 Ib., 1765
BRN 1747180 ib
pKa 4.89 (ntawm 25 ℃)
PH 3.97 (1 mM tov); 3.45 (10 mM tov); 2.95 (100 mM tov);
Kev cia khoom 20-25 ° C
Kev ruaj ntseg ruaj khov. Incompatible nrog cov hauv paus, txo cov neeg ua haujlwm, oxidizing tus neeg sawv cev. Flamable.
Explosive txwv 1% (V)
Refractive Index n20/D 1.428 (lit.)
MDL PAB 00004429
Physical thiab Chemical Properties Qhov ceev 0.91
melting point 16-16.5 ° C
Kub taw tes 237 ° C
Refractive Index 1.4268-1.4288
flash point 130 ° C
dej-soluble 0.68g / L (20 ° C)
Siv Rau kev sib txuas ntawm dyes, txuj lom, tshuaj, kev npaj tshuaj tua kab, fungicides, plasticizers

Product Detail

Khoom cim npe

Risk Codes 34 – Ua rau kub hnyiab
Kev nyab xeeb piav qhia S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
S36/39 -
S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.)
S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag.
S25 - Tsis txhob sib cuag nrog lub qhov muag.
S27 - Tshem tawm tag nrho cov khaub ncaws tsis huv tam sim ntawd.
UN IDs UN 3265 8/PG 3
WGK Germany 1
RTECS RH0175000
TSCA Yog lawm
HS Code 29159070 ib
Kev Ceeb Toom Irritant
Hazard Class 8
Packing Group III
Toxicity LD50 qhov ncauj hauv nas: 10,080 mg/kg (Jenner)

 

Taw qhia

Octanoic acid yog cov kua tsis muaj xim nrog cov ntxhiab tsw. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm caprylic acid:

 

Zoo:

- Caprylic acid yog fatty acid uas muaj toxicity tsawg.

- Caprylic acid yog soluble hauv dej thiab cov kuab tshuaj organic xws li ethanol thiab ether.

 

Siv:

- Nws tuaj yeem siv los ua cov tshuaj tsw qab, kas fes tsw, tsw thickener thiab nto yaj tshuaj, thiab lwm yam.

- Caprylic acid kuj tuaj yeem siv los ua emulsifier, surfactant, thiab xab npum.

 

Txoj kev:

- Cov txheej txheem kev npaj ntawm caprylic acid yog los ntawm transesterification ntawm fatty acids thiab cawv, piv txwv li, esterification.

- Ib txoj kev siv feem ntau rau kev npaj caprylic acid yog los ua cov tshuaj caprylic cawv nrog sodium hydroxide los ua sodium ntsev ntawm octanol, uas tom qab ntawd reacted nrog sulfuric acid los ua caprylic acid.

 

Cov ntaub ntawv kev nyab xeeb:

- Caprylic acid feem ntau muaj kev nyab xeeb raws li kev siv ib txwm siv, tab sis tseem yuav tsum tau saib xyuas kom ua raws li txoj kev siv kom raug.

- Thaum siv caprylic acid, hnav cov hnab looj tes tiv thaiv thiab tsom iav los tiv thaiv daim tawv nqaij thiab qhov muag.

-Thaum ntsib daim tawv nqaij lossis qhov muag, yaug tam sim ntawd nrog dej ntau thiab nrhiav kev pab kho mob.

- Thaum khaws cia thiab tuav cov kua qaub caprylic, tsis txhob sib cuag nrog cov oxidants muaj zog thiab cov khoom siv hluav taws xob, thiab kom deb ntawm cov nplaim taws thiab qhov chaw kub.

 


  • Yav dhau los:
  • Tom ntej:

  • Sau koj cov lus ntawm no thiab xa tuaj rau peb