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