Chemical name STEARYL ACRYLATE 18 (SA 18)
Chemical formula

C21H40O2

Concentration

min. 92 %

Inhibitor 175 ± 25 ppm
CAS Number 4813-57-4
EINECS # 225-383-3
Chemical name STEARYL ACRYLATE 18 (SA 18)
Chemical formula

C21H40O2

Concentration

min. 92 %

Inhibitor 175 ± 25 ppm
CAS Number 4813-57-4
EINECS # 225-383-3

Stearyl Acrylate 18 (SA 18)

Stearyl Acrylate 18 (SA 18) is an ester of Acrylic acid and is used as a raw material component in the synthesis of polymers. The ester is a monofunctional monomer with a characteristic high reactivity of acrylates and a long hydrophobic moiety. It forms homopolymers and copolymers which can be obtained from (meth)acrylic acid and its salts, amides, and esters, and with methacrylates, acrylonitrile, maleic acid esters, vinyl acetate, vinyl chloride, vinylidene chloride, styrene, butadiene, unsaturated polyesters and drying oils, etc.

Stearyl Acrylate 18 (SA 18) is a very useful starting material for chemical syntheses because it readily undergoes addition reactions with a wide variety of organic and inorganic compounds.

Features & Benefits: 

  • Chemical resistance
  • Hydrophobicity
  • Low Shrinkage
  • Adhesion
  • Impact resistance
  • Weatherability

Characteristics: 

  • Stearyl Acrylate 1618 (SA 1618) is used in pour-point depressants, slip-coatings, adhesives, oil additives, and emulsifiers. Stearyl Acrylate 1618 (SA 1618) can be used in release paper coatings.

Applications: 

  • Personal care
  • Coatings and inks
  • Leather & Textile
  • Lubricants
  • Oilfield
  • Adhesives & Sealants
  • Rad / UV Cure
1
1

Physical Properties:

  • Purity
    min. 92%
  • Acid Value
    max. 0.05%
  • Water content
    max. 0.1%
  • Color APHA
    max. 125
1

Chemical Properties:

  • Appearance
    Clear, pale yellow
  • Physical form
    00
  • Odor
    00
  • Molecular weight
    324.6
  • Polymer Tg
    – 58 °C
  • Tg
    between -20 and -50
  • Density
    0.904 g/cm3 at 20 °C
  • Boiling Point
    160 °C at 3 hPa
  • Freezing Point
    22
  • Flash point
    >100 °C
  • Melting Point
    25 °C
  • Vapor Point
    0.00000413 hPa
  • Peroxide content (ISO 3960)
    max. 5 ppm

In order to prevent polymerization, Stearyl Acrylate 18 (SA 18) must always be stored under air, and never under inert gases. The presence of oxygen is required for the stabilizer to function effectively. It has to contain a stabilizer and the storage temperature must not exceed 35 °C. Under these conditions, the storage stability of one year can be expected upon delivery. In order to minimize the likelihood of over storage, the storage procedure should strictly follow the “first-in-first-out” principle.If Stearyl Acrylate 18 (SA 18) is crystallized the product can be melted safely with heating temperatures up to 60 °C. It should not be stored at this temperature for more than 5 days in order to prevent degradation in quality and premature formation of polymer fractions. In order to reduce the thermal stress during the melting process, air convection should be very good. Under such favorable conditions, melting can be achieved within 24 hours.The preferred construction material for tanks and pipes is stainless steel. Carbon steel is also acceptable, although the formation of rust may be a problem with product quality (color). Iron(III)-ions have been shown to be a weak polymerization initiator. If carbon steel is to be used, special procedures should be used to prepare the tank for use. Storage tanks, pumps, and pipes should be earthed.

Storage & Handling:

In order to prevent polymerization, Stearyl Acrylate 18 (SA 18) must always be stored under air, and never under inert gases. The presence of oxygen is required for the stabilizer to function effectively. It has to contain a stabilizer and the storage temperature must not exceed 35 °C. Under these conditions, the storage stability of one year can be expected upon delivery. In order to minimize the likelihood of over storage, the storage procedure should strictly follow the “first-in-first-out” principle.If Stearyl Acrylate 18 (SA 18) is crystallized the product can be melted safely with heating temperatures up to 60 °C. It should not be stored at this temperature for more than 5 days in order to prevent degradation in quality and premature formation of polymer fractions. In order to reduce the thermal stress during the melting process, air convection should be very good. Under such favorable conditions, melting can be achieved within 24 hours.The preferred construction material for tanks and pipes is stainless steel. Carbon steel is also acceptable, although the formation of rust may be a problem with product quality (color). Iron(III)-ions have been shown to be a weak polymerization initiator. If carbon steel is to be used, special procedures should be used to prepare the tank for use. Storage tanks, pumps, and pipes should be earthed.

It can be purchased in bulk or packed in drums or IBC

Delivery conditions

It can be purchased in bulk or packed in drums or IBC