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Pentaerythritol Tetrabenzoate

Synonyms: Pentaerythritol tetrabenzoate; 2,2-bis((benzoyloxy)methyl)-1,3-propaned; Benzoflex®S552.


Molecular Formula: C33H28O8    


Molecular Weight: 552.58


CAS Number: 4196-86-5   


EC Number: 224-079-8


Molecular structure:


  

Specifications:


Item

Specification

Appearance

White granule or powder

Assay of ester(HPLC), %

≥97.0

Color APHA

100max

Melt point, ℃

97~100

Whight loss in(120/3hour)% 

0.5


Properties:

 This product is a white powder. It slightly soluble in water which solubility less than 0.1g/100ml(19℃), difficult soluble in aliphatic hydrocarbons and aromatic hydrocarbons and soluble in hot methanol and ethanol when cooling it become crystal.


Uses: 

The product is mainly used as plasticizer, except that, it also use as soldering flux of electronic materials, adhesive of hot-melt jetting ink, adjuvant of liquid crystal materials, viscosity lowing agent for hot-melt adhesive composition which having low viscosity and for mixture of polystyrene and polyetherimide-siloxane copolymer, crystallization accelerator for the polyester material, the anti-haze additive for optical material of polycarbonate-epoxy resin polymer, solvent for benzoate inks, etc., as well as used as the standard phase of gas-liquid chromatographic in the analysis of aromatic hydrocarbon. In addition, it can lower the melt viscosity and the fusing temperature when added to the toner, and it can increase tear resistance for rubber composition when added to the styrene-butadiene copolymer rubber.


Storage: 

Maintain in cool, dry containment.


Package: 

50kg/drum or as customer require.


Expiration Date: 2 years