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RT £ºApproximately 2.0 g of (EO)20(PO)70(EO)20 triblock copolymer
(Pluronic P123 from BASF, Co.) was dissolved in 20.0 mL of 99.5+% anhydrous ethanol, 200 proof (Acros Organics), and allowed to stir for 4 h.
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3Â¥: Originally posted by yamakawa at 2012-06-28 18:00:09
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Alcohol proof is a measure of how much alcohol (ethanol) is contained in an alcoholic beverage. The term was originally used in the United Kingdom and was defined as 7/4 times the alcohol by volume (ABV). The UK now uses the ABV standard instead of alcohol proof. In the United States, alcoholic proof is defined as twice the percentage of ABV. The measurement of alcohol content and the statement of this content on the bottle labels of distilled beverages (also called liquors or spirits) is regulated by law in the United States. The purpose of the regulation is to provide pertinent information to the consumer.

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2Â¥2012-06-28 17:58:07
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3Â¥2012-06-28 18:00:09
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romami: ½ð±Ò+2, ¡ï¡ï¡ïºÜÓаïÖú, ÕÕÄãÕâô¿´£¬Ç°ÃæÒÑ˵µÄÊÇ99.5%ºóÃæÈ´ÓÖ˵ÊÇ100%£¬Óеã×ÔÏàì¶Ü°¡£¡ 2012-06-29 11:23:51
±ê×¼¾Æ¶È£¨Alcoholic proof£©£¬ÊǺâÁ¿¾Æ¾«º¬Á¿µÄ±êʶ·½Ê½¡£ÕâÖÖ±êʶ·½Ê½ÔÚÃÀ¹ú³£Óã¬Æä¶¨ÒåΪ¾Æ¾«Ìå»ý°Ù·ÖÊýµÄ2±¶¡£ÀýÈç, 40%ÒÒ´¼£¬ Ï൱ÓÚ80 PROOF¡£Ó¢¹ú¶¨ÒåΪ¾Æ¾«Ìå»ý°Ù·ÖÊýµÄ7/4±¶¡£ËùÒÔ£¬200 proof ÊÇ 100% ÒÒ´¼.
4Â¥2012-06-28 18:15:07
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