1. The compound is a popular optical brightener for use in laundry detergents. 2. Optical brightener is used to make paper appear whiter. 3. The lustre of the gilded threads is further increased by passing them through a brightener . 4. Amineptine is a mild but pleasant stimulant and a fast-acting mood-brightener . 5. Designed as a day brightener , it's warm, uplifting, sometimes poignant or amusing. 6. May's real brightener was gasoline prices dipping nearly 3 percent even as the summer driving season arrived. 7. Excess brightener will often cause a greening effect as emissions start to show above the blue region in the visible spectrum. 8. When you sell one car a month, a potato shaped like Mickey Mouse's head is a real day brightener . 9. Walt Disney's inventiveness refreshed my mind, and the exuberance of his cast of characters was a real day-brightener . 10. Some materials can be made to look " whiter than white ", this is achieved using optical brightener agents ( OBA ).
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