Think straiaht.
n-HEPTANOIC ACID
n-HEPTYL ALCOHOL PHYSICAL CHARACTERISTICS: Molecular weight: 130.18 Specific weight: d ^ = 0 9 1 8 Index of refraction @ 25°C: N D =1.4215 Melting point: 8°C Boiling point: @ 760 mm HG: 223°C Distillation: 95% between 123°C and 127°C@ 18mmHG 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 % hfeO 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 esterified with polyols. for example, n-heptanoic acid can impart highly desir able properties to special lubricants and plasticizers. Glycerophthalic resins esterified 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.
CIRCLE 12 ON READER SERVICE CARD
PHYSICAL CHARACTERISTICS: Molecular weight: 116.2 Specific weight: d " ---- 0.819 Index of refraction @ 25°C: N D - 1.4225 Freezing point -34°C Distillation range @ 760 mm Hg: 169°Cto174°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 min. Moisture: less than 0.1% hhO n-HEPTYL ALCOHOL
INTVEC Produced by ΑΤΟ CHIMIE
