OPTICAL BRIGHTENER CBS-127

CAS NO : 40470-68-6

Synonyms:
CBS-127 (Fluorescent Brightener) ;  40470-68-6; Fluorescent Brightener FP-127; fluorescent brightener 378; 4,4'-bis(2-methoxystyryl)-1,1'-biphenyl; 1,1'-biphenyl-4,4'-bis[2-(methoxyphenyl)ethenyl]; cbs-127; FBA 378; 1,1'-biphenyl-4,4'-bis-benzoxazole; Optical Brightener FP; 4,4'-bis[(E)-2-(2-methoxyphenyl)ethenyl]biphenyl; Optical brightener CBS-127; Fluorescent Whitening Agent FP-127; Optical Brightening Agent FP-127;  Fluorescent Brightener 378; Fluorescent Brightener FP; OPTICAL BRIGHTENER 378; 40470-68-6; optik parlatıcı; CBS127; CBS 127; CBS-127; Optik parlatıcı 127; Optik parlatıcı CBS127; Optik parlatıcı CBS 127; Optik parlatıcı CBS-127; Optic parlatıcı CBS127; Optic parlatıcı CBS-127; Florescent Brightener; Fluorescent Brightner; florasan; OPTICAL BRIGHTENER CBS-127; OPTİCAL BRİGHTENER CBS-127; OPTICAL BRIGHTNER CBS-127; OPTICAL BRIGHTENER CBS127; OPTİCAL BRİGHTENER CBS127; OPTICAL BRIGHTNER CBS127; OPTICAL BRIGHTENER CBS 127; OPTİCAL BRİGHTENER CBS 127; OPTICAL BRIGHTNER CBS 127  

OPTICAL BRIGHTENER CBS-127

Optical Brightener CBS-127 is highly effective in polymer substrates such as acrylics, thermoplastic polyurethanes, polyvinylchloride, styrene ehomo and copolymers, polyolefins,and other organic substrates. Main applications of Optical Brightener CBS-127 include synthetic fibers,plastics and plastic rubbers. Additional applications include clear varnish,pigmented varnish,paints,printing inks and synthetic leather.

Short Description:
High quality whitening Optical Brightener FP-127 for PVC
CAS NO 40470-68-6 
FLUORESCENT BRIGHTENER FP 
[Chemical name] FLUORESCENT BRIGHTENER FP 
[Structure] 
[Molecular weight]418.5 
[Physical properties] 
Melting Range 216-222℃
Specific Gravity(20℃) 1.23g/cm3 
λmax in ultra-violet range 350-355nm 
Solubility (20℃) %W/W 
Water <0.01 
Acetone <0.1
Dimethylacetamide 1.4 
Chloroform 0.4 
Ethylacetate <0.1 
n-Hexne <0.01 
Methanol <0.1 

[Molecular weight]418.5

[Physical properties]

Melting Range of Optical Brightener CBS-127:216-222℃
Specific Gravity(20℃) of Optical Brightener CBS-127:    1.23g/cm3
λmax  of Optical Brightener CBS-127 in ultra-violet range    350-355nm
Solubility (20℃) of Optical Brightener CBS-127:    %W/W
Water of Optical Brightener CBS-127:    <0.01
Acetone     of Optical Brightener CBS-127:<0.1
Dimethylacetamide of Optical Brightener CBS-127:    1.4
Chloroform of Optical Brightener CBS-127:    0.4
Ethylacetate of Optical Brightener CBS-127:    <0.1
n-Hexne     of Optical Brightener CBS-127:<0.01
Methanol of Optical Brightener CBS-127:    <0.1
Methylene chloride of Optical Brightener CBS-127:    0.1
[Volatility(heating rate 20℃/min)

Temperature(℃) of Optical Brightener CBS-127    Weight loss(%)
310    1.0
325    2.0
350    2.0

[Applications of Optical Brightener CBS-127:

Optical Brightener CBS-127 is highly effective in polymer substrates such as acrylics, thermoplastic polyurethanes,polyvinylchloride,styrene ehomo and copolymers,polyolefins,and other organicsubstrates. Main applications of Optical Brightener CBS-127 include synthetic fibers,plastics and plastic rubbers. Additional applications include clear varnish,pigmented varnish,paints,printing inks and synthetic leather.

[Feature of Optical Brightener CBS-127:

Optical Brightener CBS-127 features good resistance to heat, exceptional whitening properties,good light fastness and low volatility. Optical Brightener CBS-127 has a brilliant bluish greenish cast ,features good compatilility in various substrates. Optical Brightener CBS-127 is especially suitable for applications such as films and fibers.

[Appearance of Optical Brightener CBS-127:

Flow free bright yellowish powder.

[Storage of Optical Brightener CBS-127:

Keep in cool dry place,keep away from sunlight ,Provided the usual precautions for handing chemicals are observed. Avoided dust formation and ignition sources.

[Package of Optical Brightener CBS-127:

Paper drum lined with plastics bags,net weight 25KG.

[Handling&safety of Optical Brightener CBS-127:

FPcan be handled in accordance with the usual rules for industrial chemicals.Avoid dust formation and ignition sources.

Dosage of Optical Brightener CBS-127:

According the whitening demand to choose the dosage, following suggestion dosage:

(1) PVC: Whitening:0.01-0.05% (10-50g/100kg)

Transparence of Optical Brightener CBS-127:0.0001-0.001% (0.1-1g/100kg)

(2) Polybenzene: Whitening of Optical Brightener CBS-127: 0.001% (1g/100kg)

Transparence of Optical Brightener CBS-127:0.0001-0.001% (0.1-1g/100kg)

(3) ABS: 0.01-0.05% (10-50g/100kg)

Description
Optical Brightener CBS-127 is a high stability optical brightener agent with very stable excellent whitening effect. No yellowing and discoloring will occur on the products whitening by this whitening agent even if they are stored for a long time. So it is very popular and very widely used in Plastic especially for soft plastic such as wire, cable, artificial leathers etc.

Specification:

Name    Optical brightener agent CBS-127
Appearance    Light yellow powder
CAS No.    40470-68-6
Molecular Formula    C30H26O2
Purity    ≥99%
Melting point    216-222℃
Ash    ≤0.5%
Volatile matter    ≤0.3%

Use Of CBS-127  

It is especially suitable for the whitening of PVC and polystyrene series products, and it   can also be used for whitening and brightening of other thermoplastics, coatings, inks,   and synthetic fibers.

Amount of fluorescent whitening agent CBS-127 added per 100kg polymer (reference dosage):

PVC:    Whitening: 0.01-0.05% (10-50g)
Transparent: 0.0001-0.001% (0.1-1g)

PS:    Whitening: 0.001% (1g)
Transparent: 0.0001-0.001% (0.1-1g)

ABS:    Whitening: 0.01—0.05%（10g-50g）(It can effectively eliminate the inherent yellow in ABS)
Transparent: 0.01—0.05（10g-50g）

Other plastic    Such as poly(methyl methacrylate), Cellulose carbonate etc., the dosage of cbs-127 can refer to the above formula used in the pvc.