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

• CAS No.: 7128-64-5
• Formula: C26h26o2n2s
• EINECS: 230-426-4
• Appearance: Powder
• Usage: Water Treatment Chemicals, Plastic Auxiliary Agents, Surfactants, Leather Auxiliary Agents
• Color: White
• Model NO.: 99%
• Product Name: Optical Brightener Ob (Ci 184)
• CAS: 7128-64-5
• Transport Package: 25kg/Fiber Drum with PE Liner
• Trademark: sunwisechem
• Origin: China

Product Description

Product Description

Product Name: Optical Brightener OB (CI 184)

Identification
Synonyms 2,5-Bis(5-tert-butyl-2-benzoxazolyl)
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 199-201ºC

Specification

Item	Specification
Apperance:	Yellow or pale yellow greenish powder
Melting point:	199-201ºC
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. 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.