LOTSORB UV 3638 (CAS:18600-59-4)

Chemical Name

2,2'-(1,4-Phenylene)bis(4H-3,1-benzoxazin-4-one) Synonym: 2,2'-Benzene-1,4-diylbis(4H-3,1-benzoxazin-4-one)

Chemical Structure

Introduction

Lotsorb UV 3638 is a highly efficient and non-staining UV absorber.

Physical Properties

CAS No.                                                          18600-59-4 

EC No.                                                             418-280-1 

Formula                                                          C₂₂H₁₂N₂O₄

Molecular Weight                                           368

Melting Point(°C)                                             Min.310 

Volatile Loss（%）                                           Max.0.5 

Odor                                                                 None

Color of Solution 460nm (%) Min.                    98.0 

Color of Solution 500nm (%) Min.                    99.0 

Appearance                                                      Off-white to Pale Yellow Fine Powder 

Ash(%)                                                               Max. 0.10

Min. Purity                                                         98%

Solubility (20°C)                                                 % w/w 

Ethanol                                                               <1 

Methyl ethyl ketone                                           <1 

Ethyl acetate                                                      <0.1 

DMF                                                                    2 

Water                                                                 <0.01

Applications

Lotsorb UV 3638 is made to dissolve quickly in PET resin and to give a transparent  appearance even with high dosage. Lotsorb UV 3638 is ideal for film/sheet/plate applications such as solar cell, window film,  etc. Lotsorb UV 3638 is registered on FDA and is approved for food contact applications  such as PET bottles and food wrap films.

Handling and Storage

In accordance with good industrial practice, handle with care and avoidunnecessary  personal contact. Avoid continuous or repetitive breathing ofdust. Use only with adequate  ventilation. Protect skin. Avoid dust formationand ignition sources. This product may be stored up to one year in a sealed container. Containers should be  stored in a cool, dry area. Extended storage at elevated temperatures or exposure to  direct heat or sunlight could reduce product life. Keep containers sealed when not in use. For more detailed information please refer to the material safety data sheet.

Packaging and Handling

Packaging: 20Kg/Carton

Store the product in a cool, dry, well-ventilated area away from incompatible materials. Unless stated, proper storage will permit usage of the product for 12 months from the manufacture date. For additional handling and toxicological information, consult the Material Safety Data Sheet.