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Cov khoom lag luam

Dibenzoylmethane

Cov lus piav qhia luv luv:


Khoom Nthuav dav

Cov khoom lag luam

Dibenzoylmethane

CAS

120-46-7

MF

C15H12O2

MW

224,25

EINECS

204-398-9

Dibenzoylmethane Cov Khoom Siv Tshuaj Lom Zem

Melting taw tes

75-79 ° C (lit.)

Boiling taw tes

219-221 ° C18 hli Hg (lit.)

Yog ceev

0.800 g / cm3

refractive index

1.6600 (kwv yees)

Flash point

219-221 ° C / 18mm

chaw muag khoom temp

Khaws hauv RT.

Pka

8.95 ± 0.10 (Teem Tau)

Daim Ntawv

Lub muaju

Xim

Lub teeb daj kom daj

Dej Solubility

Nws yog Soluble hauv ether, chloroform, thiab aqueous sodium hydroxide. Insoluble hauv dej.

Merck

14,3009

BRN

514910

Kev ruaj khov

Ruaj khov. Tsis sib haum nrog cov neeg muaj zog oxidizing.

InChIKey

NZZIMKJIVMHWJC-UHFFFAOYSA-N

Cov Ntaub Ntawv Kev Nyab Xeeb

Cov Cim Teev Nraim 

Xi

Cov Ntawv Ceeb Toom Kom Muaj 

36/37/38

Cov Lus Qhia Kev Nyab Xeeb

22-24 / 25

WGK lub teb chaws Yelemees

3

RTECS

TZ1930000

Ceev Faj Cov Lus Cim

Chim siab

TSCA

Yog lawm

HS Code

29143900

Dibenzoylmethane Kev Siv Thiab Cov Khoom Sib Tham

Cov Khoom Siv Tshuaj: cov hmoov daj dawb-dawb

Siv: antineoplastic

Siv: dibenzoylmethane raws li kev hloov tshiab hauv tshav kub PVC, kis tau zoo, tsis muaj tshuaj lom thiab tsis qab; tuaj yeem txhim kho zoo heev thaum ntxov PVC xim, pob tshab, ruaj khov ntev, thiab kev ua haujlwm thaum nag lossis daus thiab "zinc hlawv" thiab lwm yam; dav siv hauv kev kho mob, khoom noj khoom haus ntim khoom lag luam thiab lwm cov khoom lag luam PVC tsis muaj tshuaj lom pob tshab. Dibenzoylmethane saum toj no tuaj yeem nqus tau 290nm ultraviolet lub teeb, thaum lub teeb muaj lub zog ruaj khov rau cov khoom lag luam PVC tuaj yeem muab kev ua haujlwm ruaj khov ntev ntev.

Lus Txhais: ChEBI: Beta-diketone uas yog acetylacetone (acac) uas ob pawg methyl tau hloov los ntawm pawg phenyl. Nws yog qhov tseem ceeb me me ntawm lub hauv paus extract ntawm licorice (Glycyrrhiza glabra) thiab muaj pov thawj antimutagenic thiab antica cer teebmeem.         

Cov Lus Txog Kev Nyab Xeeb: Muaj mob pes tsawg los ntawm kev haus. Thaum rhuab mus ua rau lub cev qhuav nws emits acrid pa thiab ua pa vapors       

Cov qauv kev ua kom huv: Dibenzoylmethane (1,3-diphenyl-1,3-propanedione) [120-46-7] M 224.3, m 8 0o. Crystallize dibenzoylmethane los ntawm tus tsiaj ether lossis MeOH. [Beilstein 7 IV 2512.]

Tshiab tsis muaj tshuaj lom pab txhawb ua kom sov kub ntawm calcium, zinc thiab lub ntiaj teb tsis tshua muaj —— Dibenzoylmethane (DIBENZOYL METHANE) Cov ntsiab lus tseem ceeb zoo: Pom tshwm: Dawb, lub teeb daj crystalline hmoov Cov ntsiab lus: ≥99% Melting point: 76 ~ 80 ℃ Kom qhuav poob: ≤ 0.5% Tshauv cov ntsiab lus: ≤0.1% Cov khoom ntim: 25kg, 50kg Stearoyl benzoyl methane cov khoom lag luam: PVC tshiab tsis muaj tshuaj tiv thaiv kev kub hnyiab, tuaj yeem siv nrog thiab calcium / zinc, barium / zinc thiab tsis tshua muaj lub ntiaj teb, kuaj los ntawm Lub Chaw Tshawb Nrhiav Kev Tshawb Fawb Hauv Tebchaws. thiab ua pov thawj zoo ntawm cov khoom lag luam tag nrho raws li cov qauv zoo ntawm cov khoom lag luam txawv teb chaws zoo sib xws. Peb lub tuam txhab yog ib lub chaw tsim khoom loj tshaj plaws ntawm Dibenzoylmethane thiab peb cov khoom lag luam feem ntau yog muag rau European, Asmeskas, Taiwan ntawm Tuam Tshoj, Nyiv, Kaus Lim Qab Teb, Russia, Is Nrias teb,

Mexico, thiab lwm yam thiab peb muaj cov neeg yuav khoom hauv ntau tshaj 40 lub teb chaws. Cov khoom no yog xim dawb lossis lub teeb daj crystalline hmoov, yooj yim soluble hauv ether, trichloromethane, o-Xylene, toluene thiab aqueous sodium hydroxide, soluble me ntsis hauv ethanol, tsis tshua muaj neeg soluble hauv dej. Raws li hom tshiab ntawm PVC ntu pab hluav taws xob kub, nws qhov kis tau yog siab, tsis muaj tshuaj lom thiab tsis qab; nws tuaj yeem siv nrog cov khoom los yog kua calcium / zinc, barium / zinc thiab lwm yam kev kub hnyiab, tuaj yeem txhim kho zoo PVC thawj xim, pob tshab, thiab ruaj khov ntev, nrog rau cov nag lossis daus thiab 'zinc kub taub hau' hauv kev ua; yog nws muaj qhov ua tau zoo synergistic rau 'zinc xab npum', ntxiv rau cov khoom no tuaj yeem tiv thaiv tau zoo 'zinc hlawv', haum rau kev ua kom nruj, tsis muaj tshuaj lom, tsis zoo rau lub teb, txhawb kev txhim kho ntawm Calcium / Zinc compound stabilizer, nws yog dav siv hauv kev kho mob, zaub mov ntim thiab lwm yam tsis muaj tshuaj lom PVC pob tshab (xws li PVC fwj, ntawv ci, pob tshab zaj duab xis thiab lwm yam). Dibenzoylmethane tuaj yeem nqus tau ntau dua 290nm UV, tib lub sijhawm muaj cov haujlwm ntawm lub teeb ci, tuaj yeem muab lub sijhawm ntev tsaj ntawm cov khoom lag luam PVC.


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