Cov khoom
Factory Muag UV Absorber 2-Phenylbenzimidazole-5-Sulfonic Acid CAS No. 27503-81-7
Product details
| Khoom npe | 2-Phenylbenzimidazole-5-sulfonic acid |
| CAS Nr. | 27503-81-7 |
| MF | C13H10N2O3S |
| EINECS: | 248-502-0 : kuv |
| Qhov tshwm sim | hmoov |
| Ntim | 25 kg drum |
| Txee lub neej | 2 Xyoo |
2-Phenylbenzimidazole-5-sulfonic acid siv los ua UV absorber, feem ntau yog siv hauv tshuaj pleev ib ce.
Khoom Parameters
| Melting point | ≥300 ° C (lit.) |
| ceev | 1.3592 (zeeg) |
| Refractive Index | 1.6360 (kwv yees) |
| cia temp. | 2-8 ° C |
| solubility | ethanol thiab dej: soluble ((raws li sodium ntsev)) |
| daim ntawv | Fine Crystalline hmoov |
| pka ua | -0.87 ± 0.40 (Tshaj tawm) |
| xim | Dawb |
| Dej Solubility | soluble |
| Merck | 14, 3593 ib |
| BRN | 922664 ib |
| Kev ruaj ntseg: | Hygroscopic |
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.
