Cov khoom
Tshuaj pleev ib ce Raw Khoom Avobenzone 99% CAS 70356-09-1 UV Absorber Sunscreen Avobenzone Powder
Product details
Avobenzone yog UVA lim.Nws yog siv nyob rau hauv cov tshuaj pleev thaiv hnub thiab tshuaj pleev ib ce formulations.Nws muaj qhov nqus siab tshaj plaws ntawm ca 340-350 nm, txo qis hauv UV irradiation ua rau poob ntawm UVA tiv thaiv nyhuv.Nws photostability yog rhiab heev vim nws ruaj khov nyob rau hauv polar protic hnyav thiab yog photolabile nyob rau hauv nonpolar solvents.
Avobenzone yog cov khoom siv roj soluble siv hauv cov khoom siv tshuaj pleev thaiv hnub kom nqus tag nrho cov spectrum ntawm UVA rays.Nws yog dibenzoylmethane derivative.Avobenzone muaj nyob rau hauv lub xeev hauv av raws li kev sib xyaw ntawm cov ntawv enol thiab keto, nyiam cov chelated enol.Nws muaj peev xwm nqus tau ultraviolet lub teeb nyob rau hauv ntau lub wavelengths ntau dua li ntau cov tshuaj pleev thaiv hnub organic tau ua rau nws siv ntau yam kev npaj ua lag luam ua lag luam raws li "broad spectrum" sunscreens.Avobenzone muaj qhov nqus siab tshaj plaws ntawm 357.
| SAIB | SPECIFICATION |
| Khoom npe | Avobenzone |
| Assay | ≥99.5% HPLC |
| Qib | Qib tshuaj pleev ib ce |
| Qhov tshwm sim | Dawb hmoov |
| Hydro Quinone | Tsis zoo |
| Melting Point | 203-206 (± 1) ºC |
| Specific Optical Rotation | [a] 20D = + 174.0°- + 186.0° |
| Infrared ncov tus nqi | 1514cm-1;1229 cm-1;1215 cm-1;1059 cm-1;1034-1 : kuv |
| Solubility | Soluble hauv dej, me ntsis soluble hauv ethanol |
| Qhov tseeb | Kev daws yuav tsum tau qhia meej, tsis muaj teeb meem raug tshem tawm |
| PH (1% dej tov) | 5.0-7.0 Nws |
| Poob rau ziab | ≤0.5% |
| Residue ntawm Ignition | ≤0.5% |
| Cov hlau hnyav | ≤10ppm |
| Coj | ≤ 2 ppm |
| Arseniic | ≤ 2 ppm |
| M | ≤1ppm |
| Tag Nrho Phaj suav | ≤100cfu / g |
| Total Poov & Pwm | ≤ 50cfu / g |
| E. Coli | Tsis zoo |
| Salmonella | Tsis zoo |
| Staphylococcus | Tsis zoo |
| Qauv | Muaj |
| MOQ | 2kg ua |
| Cia tej yam kev mob | Khaws rau hauv qhov chaw txias & qhuav, Cia kom deb ntawm lub teeb muaj zog thiab cua sov. |
Daim ntawv thov
Avobezone yog hluavtaws UV-absorbing Chemicalbook receiver.Nws yog UV-A zoo (> 320nm) hom UV absorber, uas tuaj yeem thaiv tag nrho ntau yam (320 ~ 400nm) ntawm UVA thiab muaj txiaj ntsig zoo Broad-spectrum roj-soluble UVA lim, sib xyaw nrog lwm cov tshuaj tiv thaiv UVB, tuaj yeem muab tag nrho Kev tiv thaiv UVA thiab UVB, siv los tiv thaiv kev mob qog noj ntshav ntawm daim tawv nqaij
Ntim
Cov ntaub ntawv tuam txhab
Hebei Zhuanglai Chemical Trading Co., Ltd.yog lub tuam txhab lag luam txawv teb chaws, tshwj xeeb hauv kev tsim thiab tsim cov khoom siv tshuaj lom neeg, tshuaj intermediates.It muaj nws lub Hoobkas, uas procures nws tus kheej muaj kev sib tw hauv kev lag luam.
Tau ntau xyoo, peb lub tuam txhab tau yeej ntau tus neeg siv khoom txhawb nqa thiab kev ntseeg siab vim nws ib txwm siv zog ua cov khoom lag luam zoo nrog tus nqi zoo.Nws cog lus rau nws tus kheej kom txaus siab rau txhua tus neeg siv khoom, rov qab los, peb cov neeg siv khoom pom zoo kev ntseeg siab thiab kev hwm rau peb lub tuam txhab.Txawm hais tias muaj ntau tus neeg siv khoom ncaj ncees yeej xyoo no, Hegui ua tus coj ncaj ncees txhua lub sijhawm thiab siv zog ua kom nws tus kheej zoo dua los ntawm txhua yam.
Peb tab tom tos ntsoov yuav koom tes nrog koj thiab muaj kev sib raug zoo nrog koj.Thov so kom paub tseeb tias peb yuav txaus siab rau koj.Cia li xav tiv tauj kuv.
FAQ
1. Kuv tuaj yeem tau txais cov qauv li cas?
Peb tuaj yeem muab cov qauv dawb rau koj rau peb cov khoom uas twb muaj lawm, lub sijhawm ua haujlwm yog 1-2 hnub.
2. Puas yog nws tuaj yeem hloov kho cov ntawv nrog kuv tus kheej tsim?
Yog, thiab koj tsuas yog xav tau xa peb cov duab kos lossis kos duab, ces koj tuaj yeem tau txais koj xav tau.
3. Yuav ua li cas them nyiaj rau koj?
Peb tuaj yeem tau txais koj cov nyiaj them los ntawm T / T, ESCROW lossis Western union uas tau pom zoo, thiab peb tuaj yeem tau txais los ntawm L / C thaum pom.
4.Lub sijhawm ua haujlwm yog dab tsi?
Lub sij hawm ua yog txawv raws li qhov sib txawv, peb feem ntau npaj cov khoom xa tuaj hauv 3-15 hnub ua haujlwm tom qab kev txiav txim pom zoo.
5. Yuav ua li cas thiaj lav qhov kev pab cuam tom qab muag?
Ua ntej tshaj plaws, peb qhov kev tswj hwm zoo yuav txo qhov teeb meem zoo rau xoom, yog tias muaj teeb meem, peb yuav xa koj cov khoom dawb.
