Optical Brightener OB (CI 184) CAS Number 7128-64-5

Details:

roduct Description

Product Name: Optical Brightener OB (CI 184)

Identification
Synonyms 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene
Molecular Formula C26H26O2N2S
Molecular Weight 430.56
CAS Number 7128-64-5
EINECS/ELINCS 230-426-4

Properties
Appearance Yellow or pale yellow greenish powder
Melting Point 199-201℃

Specification

Item	Specification
Apperance:	Yellow or pale yellow greenish powder
Melting point:	199-201℃
Ash:	0.5%max.
Volatile Content:	0.5%max.
Max.Absorption Wavelength:	375nm(in ethanol)
Max.Emission Wavelength:	435nm(in ethanol)

Application
Optical Brightener Odyssey OB is highly effective in polymer substrates such as engineering
plastics, PE PC, PVC, PS, ABS, and PP, adhesive and other organic substrates. Main
applications include fiber, molded article, film and sheet. And also can be used in clear lacquers,
pigmented lacquers, paints, printing ink and synthetic leather. Odyssey OB features excellent
resistance to heat, exceptional whitening properties, good properties, good light fastness and low volatility.

Dosage for reference(in each 100 kg polymers):
PVC: White 0.01-0.05% (10g-50g)
Tansparent 0.0001-0.001% (0.1g-1g)
PS: White 0.001% (1g)
Transparent 0.0001-0.001% (0.1g-1g)
ABS: Primitive color 0.01-0.05% (10g-50g)
White 0.001% (1g)
PE,PP: Achromaticity 0.0005-0.001% (0.5g-1g)
White 0.005-0.05% (5g-50g)
Other Plastics: Refer to the directions given above.

 

When Odyssey OB is used in PMMA polymerization, take care that the polymerization is conducted to full completion since interaction with residual monomer can cause discoloration in the final application.

Packing and Storage
Packing 25kg/fiber drum with PE liner
Storage Keeping in stock ordinary chemicals. Wear protective goggles and gloves while
applying. Avoid direct contact with skin and eyes. Soap clean if skin contaminated.

Safety Information
Non-hazardous for air, sea and road freight.
Detailed safety information is contained in each Material Safety Data Sheet, which can be obtained from our company.

FAQ

Q1: May I get one sample before placing order
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight; For those high value products, you just need to freight and certain product cost. When we both cooperate for some times or when you are our VIP customer, free sample will be offered when you need.

Q2: Which payment is available for your company
Re: T/T, L/C or Alibaba trade insurance. You can choose the one which is convenient for you.

Q3: How and when can I get my goods after payment
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.)
or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,
shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on
where the port is.

Q4: Is there any possible to use my appointed label or package
Re: Yes. If needed, we'd like to use label or package according to your requirement.

Q5: How can you guarantee the goods you offer is qualified
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide for you all are qualified. We will have goods tested and provide COA before delivery for sure.

Adhering to a strict way of doing things right, honoring every commitment, and continuing to create values for customers are SunwiseChem’s fundamental principles and spirits.

Throughout the development over ten years, SunwiseChem has been managing the entire trade process for each transaction, and paying attention to every detail. Today, SunwiseChem  provides global customers comprehensive services including sourcing, custom synthesis, quality control and multiple logistic solutions.

After years of accumulation, SunwiseChem has formed several product lines, including plastic additives/auxiliaries and films, water treatment chemicals and biocides, electronic and new material chemicals, pharmaceutical/agrochemical raw materials and intermediates, and ink/printing chemicals among others.

SunwiseChem has been consistently seeking the development together with its customers, by looking into their individual requirement, proactively discussing and being involved in customer’s project development, choosing manufacturing sites under stringent criteria, and endeavoring itself to follow-up project stages closely. Being always available and reliable when customers seeking information and development, SunwiseChem has formed strategic partnership with its key customers and has been growing together with them.

SunwiseChem pays close attention to new policies and changes in relevant chemical industries both in China and globally, especially on the EHS status of its suppliers, to ensure selected manufacturers in consistent supply to our customers.

Our endeavors and strives to excel, have won us more and more confidence and supports, from both customers and suppliers. SunwiseChem, a partner you could reply on.