UV-928 TECH DATA SHEET

UV Absorber 928

Lub npe tshuaj: 2 - (2-2H-benzo-triazole) -6 - (1 - methyl -1 - phenyl)-ethyl -4 - (1,1 ,3,{12}} tetramethylbutyl butyl) phenol

Cas No. 73936-91-1

Empirical Formula: C₂₉H₃₅N₃₀

Molecular Luj: 441.6

Tus qauv qauv:

Specifications:

Qhov tsos: Lub teeb daj hmoov

Purity: Ntau dua lossis sib npaug rau 99.0% los ntawm HPLC
Tsis muaj teeb meem: Tsawg dua lossis sib npaug rau 0.3%
Melting point: 108-110 degree
Cov ntsiab lus tshauv: Tsawg dua lossis sib npaug rau 0.1%
Transmittance: 460nm 97.0% min
5 00nm 98.0% min

Ntim: 20/25kg thawv thawv los yog fiber ntau nruas

FAQ

Q: Yuav ua li cas txog peb cov qauv kev pabcuam

A: Peb muaj cov qauv txaus rau peb cov neeg siv khoom hauv peb cov Tshuag, tab sis yuav tsum tau them rau cov qauv, peb tuaj yeem xa cov qauv hauv 7 hnub.

Q: Yuav ua li cas txog kev tswj kom zoo

A: Peb muaj kev tswj hwm nruj, pab pawg QC.

Q: Ntev npaum li cas kuv tuaj yeem tau txais cov lus pom tom qab peb xa cov lus nug?

A: Peb yuav teb koj li ntawm 12 teev hauv hnub ua haujlwm.?

Q: Kuv yuav los ntawm koj ib zaug.Kuv puas muaj kev tshwj xeeb rau lub sijhawm no

A: Hu rau kom paub meej.Peb ua tus nqi rau peb cov neeg siv khoom; peb tuaj yeem thiab yuav muab tus nqi zoo rau koj.

Q: Koj tuaj yeem tau txais dab tsi los ntawm peb?

A: Cov khoom lag luam zoo (cov qauv tsim tshwj xeeb, kev ua haujlwm zoo, kev tswj xyuas nruj) Lub Hoobkas ncaj qha muag (tus nqi zoo thiab kev sib tw) Kev pabcuam zoo (kev pabcuam tomqab muag, xa khoom sai) Kev cob qhia kev lag luam.

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