Chemical Optical Brightener Ob-1 C. I. No. 393 for Plastic/Fluorescent Brightener Ob-1/Oba 393

• Customization: Available
• CAS No.: 1533-45-5
• Formula: C28h18n2o2
• Model NO.: OB-1
• EINECS: 216-245-3
• Appearance: Powder
• Usage: Plastic Auxiliary Agents
• Color: Green
• Product Catalogue: Optical Brightener/Fluorescent Brightener
• Product Name: Optical Brightener Ob-1/Whitening Agent Ob-1
• C.I. No.: 393
• Melting Point: 357~359°c
• Molecular Weight: 414
• Purity: 99.50%
• Reach: Available
• Transport Package: Bag, Drum
• Specification: 2kg/bag; 25kg/drum
• Trademark: LD Chemical
• Origin: Changsha, Hunan
• HS Code: 320420
• Production Capacity: 60-80mt/Month

Product Description

Product Description

Product Name:
Chemical Optical Brightener Ob-1 C. I. No. 393 for Plastic Fluorescent Brightener Ob-1

 

Optical brightener OB-1 is one of the most commen and widely use whitening agent, It has a very good whitening effect for kinds of plastics. such as:ABS, PS, HIPS, PA, PC, PP, PET,EVA, PVC, etc.optical brightener ob-1 temperature is 350 degrees, which is the highest temperature resistance of all optical brightener at present. For high temperature resistant plastics, only ob-1 can be used,  and the addition amount of optical brightener ob-1 is small and the whitening degree is high.

Optical Brightener Ob-1 Specification

Product Name	Optical Brightening Agent OB-1
Chemical Name	2.2'-(4.4'-diphenol vinyl) dibenzoxazol
CAS No.	1533-45-5
C.I. No.	393
Molecular Formula	C28H18N2O2
Molecular Weight	414
Technical Index	Appearance:yellowish green powder Melting Point:357~359°C Purity:≥99%
Uses	Mainly be used in whitening of polyester and plastic, as well in whitening of Nylon during polymerization. For whitening of polyester and nylon; also used in ABS, PS, HIPS, PA, PC, PP, PET,EVA, PVC, etc. Rate of use: (per 1000kg of substrate) Polyester: 75-300g EVA, PP, nylon: 75-200g
Package	25kg per fiber drum

Optical Brightener Ob-1 has two appearance: green and yellow

 

Optical Brightener Ob-1 Green and Yellow difference:

1)The production process is difference
OB-1 green: vulcanization method
OB-1 yellow: lipidation method 

2)The color shade is difference
OB-1 green: blue
OB-1 yellow: blue-violet 

3)The PH is difference
OB-1 green: PH<7
OB-1 yellow: PH>7

Optical Brightener Ob-1 Application:be widely used in ABS, PS, HIPS, PA, PC, PP, PET,EVA, PVC,Nylon,Polyester Stable Fiber and kinds of Masterbatch.
Optical Brightener product range:

I.OPTICAL BRIGHTENER FOR PLASTICS/RUBBER/INK/COATING
Optical Brightener OB-1	C.I. 393	CAS NO.1533-45-5
Optical Brightener OB	C.I. 184	CAS NO.7128-64-5
Optical Brightener FP-127	C.I. 378	CAS NO.40470-68-6
Optical Brightener KCB	C.I. 367	CAS NO.5089-22-5
Optical Brightener KSN	C.I. 368	CAS NO.5242-49-9
Optical Brightener EBF	C.I. 185	CAS NO.12224-41-8
Optical Brightener ER-I	C.I. 199	CAS NO.13001-39-3
Optical Brightener ER-II	C.I. 199:1	CAS NO.13001-38-2
Optical Brightener ER-III	C.I. 199:2	CAS NO.13001-40-6
II.OPTICAL BRIGHTENER FOR DETERGENT
Optical Brightener CBS-X	C.I. 351	CAS NO.27344-41-8
Optical Brightener CXT	C.I. 71	CAS NO.16090-02-1
III.OPTICAL BRIGHTENER FOR TEXTILE
Optical Brightener ER-330	C.I. 199	CAS NO.13001-39-3
Optical Brightener BA	C.I. 113	CAS NO.12768-92-2
Optical Brightener BBU	C.I. 113	CAS NO.16470-24-9
Optical Brightener CXT	C.I. 71	CAS NO.16090-02-1
IV.OPTICAL BRIGHTENER FOR PAPER/PULP MAKING
Optical Brightener BA	C.I. 113	CAS NO.12768-92-2
Optical Brightener BBU	C.I. 220	CAS NO.16470-24-9
V.OPTICAL BRIGHTENER FOR WOOL/ACRYLIC
Optical Brightener SWN	C.I. 140	CAS NO.91-44-1
Optical Brightener BAC	C.I. 363	CAS NO.95078-19-6

Optical Brightener Certificates:SGS,REACH,ROHS,FDA