Purity Assurance - Chemical & Engineering News Archive (ACS

Nov 5, 2010 - Advertisements that appeared within the print issues of Chem. Eng. News have been included in the C&EN Archives to provide a ...
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" M P 4 6 - 4 8 ° — c o m p l e t e l y solid b e low 4 6 ° € . a n d melts sharply to a c l e a r liquid a b o v e 4 8 ° C . " UCH specifications accompanying listings in the catalog of Eastman Organic Chemicals* provide informative and appropriate indication of purity for organic research compounds. These melting ranges (or boiling ranges in some cases) are actual observations reported by our control laboratory. We offer them as a statement of t h e minimum to be expected in uniformity and purity. For less stringent ïvork, some Eastman Organic -Chemicals are also available in " P r a c t i c a l " grade—of sufficient purity for the usual laboratory syntheses—and in " T e c h n i c a l " grade, representing good quality commercial materials.

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Organic Chemical Sales Division Rochester 4 , Ν. Υ .

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* If you dont already have a copy of List No. 35, please ivrite us. It is your directory to the world*s most complete stock of organic compounds.

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