Think straight. - Chemical & Engineering News Archive (ACS

Nov 7, 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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Η Η Λ Η n-HEPTYL A L C O H O L

PHYSICAL CHARACTERISTICS: Molecular weight 13018 Specific weight. c#î ~ 0918 Index of refraction @ 25°C N D =1.4215 Melting point 8°C Boiling point @ 7 6 0 m m H G 223°C Distillation: 95% between 123°C and 127°C@ 1 8 m m H G Flashpoint 110°C (open crucible. French standard) Fire point 118°C (NF Τ 60-103) CHEMICAL CHARACTERISTICS: Acid index 425 to 427 Saponification index 433 Moisture less than 0.1 % H?0 Soluble in all proportions in ethyl alcohol and ordinary organic solvents Solubility in water @ 20°C: 0 29% n-HEPTANOIC ACID

When substituted for their branched chain counter­ parts, these straight chain molecules can often impart superior properties to your end products. When estenfied with polyols. for example, n-heptanoic acid can impart highly desir­ able properties to special lubricants and plasticizers. Glycerophthalic resins estenfied with it can increase the resistance of paints to aging. And its low molecular weight esters can be used in perfumes and food flavorings Also, in many cases, plasti­ cizers such as di-n-heptyl phthalate are more effective than others prepared from the corresponding branched chain alcohols. Many mixed phthalates such as capryl/n-heptyl and

decyl/n-heptyl also offer excellent performance because of the linear struc­ ture of n-heptyl alcohol. Write for free samples. Whether you're trying to achieve unusual solubility characteristics or biodegradability. these exceptionally pure products may be just the solution you need. They're produced by ΑΤΟ Chimie, and available in commercial quantities through Intsel Corporation, exclusive USA distributor. We'll be happy to provide literature and free samples. Just write to Kent Mescher at Intsel Cor­ poration, Chemical Division, 825 Third Avenue, New York, NY 10022. Or call him at (212) 758-5880. He can help you start thinking straight.

PHYSICAL CHARACTERISTICS: Molecular weight 116.2 Specific weight d " " 0 819 Index of refraction @ 25°C. N D - 14225 Freezing point -34°C Distillation range @ 760 mm Hg 169°Cto 174°C Flash point 78.5°C (closed cup NF Τ 60-103) CHEMICAL CHARACTERISTICS Acid number 0 5 max Ester number 7 max Saponification number 465 mm. Moisture less than 0 1 % FLO n-HEPTYL ALCOHOL

Produced by ΑΤΟ CHIMIE