Optical brightener OB

Short Description:

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Molecular formula:

C26H26N2O2S

Molecular weight:

430.56

Molecular Structure:

CAS#:

52232-33-4

EINECS#:

Specifications:

1.Chemical name:2,5-bis(5-tertbutyl-2-benzoxazolyl)thiophene
Molecular formula: C26H26N2O2S (As International relative Atom Mass 1997)
Molecular weight: 430.2
C.I.184

2.Specifications

Item	Indices
Appearance	light yellow or milk white powder
Purity	≥ 99.8 %
Melting point	201-202
Ash	≤ 0.1
Volatile content	≤ 0.4%

3. performance Features

1)Pale green powder, tasteless, dissolvable in paraffin, fat, olefin and most organic

solvents.Its spectrum can absorb the maximum wavelength of 375nm with the

maximum transmitted length of 435nm(in ethanol).
2) Good brightening effects and weathering resistance requires a small

quantity but can be widely used

4.Scope of Application

OB is widely used in the brightening of thermoplastics as PVC, PE, PP, PS, ABS,

PMMA, POM and thermosetting plastic, polyester fiber, paint, ink and coating.

5.Aplication Methods

Polyvinyl chloride brightening: 0.01��0.05%
increase radiance: 0.0001��0.001%
Polystyrene 0.0001��0.05%
ABS: 0.01��0.05%
Polyolefin colorless matrix: 0.0005��0.001%
white matrix: 0.005��0.05%

6.Packing Storage

Packed in 25kg×1 tanks, 5kg×2 paper boxes or 1kg(iron cases)×12 paper boxes

at cool and dry places to be protected from light.

liquid

Quality:
Our company is a professional production of Plastic raw material and Metal for many years, our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other countries, and we have got very good feedback from our customers.so you can trust us.
And we are the manufactory, so you don’t need to doubt the quality.
Payment method: for example T/T, D/A, L/C, Westerm Union,other
1)We will ship the goods within 5days after get your payments.If you want to cancel or change order, please tell me within 24hours after you finish the payment…So we both can make the best of the bad bargain.
2)We will ship the goods that you order from us by HKEMS, DHL, UPS, TNT and EUB.We will decided to choose which courier depend on different countries.To find the best way to delivery the goods for you.
3)As usual you can get the goods with in 4-7days.If the goods were lost or not received for other reasons, please contact us immediately.

绿色详情页4

FAQ

Q1: Can i get some samples
A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.

Q2: How to start orders or make payments
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, Western Union,BTC,MoneyGram

Q3: How to confirm the Product Quality before placing orders
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the
samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

Q4:What’s your MOQ
A:Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Q5: How about delivery lead time
A:Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)

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