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Think straight.

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n-HEPTYL ALCOHOL

When substituted for their branched chain counter­parts, 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 desir­able 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, plasti­cizers 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 struc­ture of n-heptyl alcohol.

Write for free samples. Whether you're trying to achieve unusual solubility characteristics or biodegrad-ability 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 Cor­poration, 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 - 1.4225 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 % H?0

n-HEPTYL ALCOHOL

CIRCLE 14 ON READER SERVICE CARD Produced by ΑΤΟ CHIME

INTVEC

PHYSICAL CHARACTERISTICS: Molecular weight 130.18 Specific weight dV ; 0.918 Index of refraction @ 25°C N D 1.4215

Melting point 8°C Boiling point @ 760 mm HG 223°C Distillation: 95% between 123CC and 127°C@ 18 mm HG Flash point 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 °c Η. Ο Soluble in all proportions in ethyl alcohol and ordinary organic solvents Solubility in water @ 20°C: 0 29%

n-HEPTANOIC ACID