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Sigma-Aldrich

Acrylonitrile

≥99%, contains 35-45 ppm monomethyl ether hydroquinone as inhibitor

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Synonym(s):
Vinyl cyanide
Linear Formula:
CH2=CHCN
CAS Number:
Molecular Weight:
53.06
Beilstein/REAXYS Number:
605310
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

vapor density

1.83 (vs air)

Quality Level

vapor pressure

86 mmHg ( 20 °C)

assay

≥99%

autoignition temp.

897 °F

contains

35-45 ppm monomethyl ether hydroquinone as inhibitor

expl. lim.

17 %

refractive index

n20/D 1.391 (lit.)

bp

77 °C (lit.)

mp

−83 °C (lit.)

SMILES string

C=CC#N

InChI

1S/C3H3N/c1-2-3-4/h2H,1H2

InChI key

NLHHRLWOUZZQLW-UHFFFAOYSA-N

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General description

Acrylonitrile is commonly used as a monomer which belongs to the class of unsaturated nitriles. It serves as a key monomer in the production of various polymers and copolymers with desirable properties. Acrylonitrile is commonly employed in the production of acrylic fibers, which are known for their softness, strength, and excellent thermal and chemical resistance. One of the primary applications of acrylonitrile is in the manufacturing of acrylonitrile-butadiene-styrene (ABS) copolymers. ABS is a versatile and highly durable plastic widely used in automotive components, appliances, electronic enclosures, and consumer goods. The addition of acrylonitrile to the copolymer enhances its heat resistance and impact strength, making ABS a highly sought-after material.

Application

Acrylonitrile can be used as a monomer:
  • In the preparation of the 3D-printed polymer material, Acrylonitrile Butadiene Styrene (ABS) which is a commonly used engineering thermoplastic known for its high strength, durability, and heat resistance. It serves as a suitable substrate for a wide range of applications, including in the medical field, compatible manufacturing processes, injection molding, blow molding, and extrusion.
  • In the copolymerization with lignosulfonate to develop a carbon fiber precursor. This copolymer can serve as a precursor material that undergoes further thermal treatment to produce carbon fibers.
  • To synthesize acrylamide grafted acrylonitrile copolymer membranes, which serve as a support matrix for the immobilization of cellulase enzymes.
Acrylonitrile is used in the manufacture of acrylic fibers, resins (acrylonitrile butadiene-styrene, styrene-acrylonitrile and others) and nitrile rubbers (butadiene-acrylonitrile).

Biochem/physiol Actions

An industrial carcinogen that is a multisite carcinogen in rats and possibly carcinogenic to humans.

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Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 2 - Carc. 1B - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1B - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

23.0 °F - closed cup

flash_point_c

-5 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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