Prop-2-enoic acid

C3H4O2

prop-2-enoic acid

CAS79-10-7
GHS02 Gefahrensymbol: Entzündbar – Flamme
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS05 Gefahrensymbol: Ätzend – Ätzwirkung
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
79-10-7
EC Number
201-177-9
UN Number
2218
Index Number
607-061-00-8
PubChem CID
6581

Physical-chemical properties

Molecular Formula
C3H4O2
Molar Mass
72.06 g/mol
IUPAC Name
prop-2-enoic acid

Chemical Identifiers

InChI
InChI=1S/C3H4O2/c1-2-3(4)5/h2H,1H2,(H,4,5)
InChI Key
NIXOWILDQLNWCW-UHFFFAOYSA-N

Overview

Prop-2-enoic acid (CAS 79-10-7) is an unsaturated carboxylic acid with high reactivity and polymerization tendency. This chemical compound, also known by its IUPAC name prop-2-enoic acid, represents a fundamental building block in polymer chemistry and industrial manufacturing. With the molecular formula C3H4O2 and a molecular mass of 72.06 g/mol, this unsaturated carboxylic acid features a vinyl group that makes it highly reactive and prone to polymerization reactions. The compound is classified under EC number 201-177-9 and carries significant safety considerations due to its corrosive nature and multiple hazard classifications. The substance exhibits several critical safety characteristics that require careful handling protocols. Classified as Flammable Liquid Category 3 and Skin Corrosive Category 1A, it presents serious risks including acute toxicity through multiple exposure routes. The compound displays the GHS pictogrammes for flammability (GHS02), health hazard (GHS07), corrosion (GHS05), and environmental hazard (GHS09), with "Danger" as the signal word. Its ADR classification as Class 8 indicates its corrosive properties for transportation purposes. Industrial applications of prop-2-enoic acid span across multiple sectors, primarily in polymer production where it serves as a monomer for manufacturing various acrylic polymers and copolymers. The compound finds extensive use in adhesive formulations and coating applications, where its polymerization properties contribute to film formation and adhesion characteristics. Additionally, it functions as a chemical intermediate in pharmaceutical and specialty chemical synthesis, often in processes that may also utilize compounds like N,N-dimethyl-1-phenylmethanamine for specific reaction pathways. OYSI provides reliable access to high-quality prop-2-enoic acid for European industrial customers requiring consistent supply chains for their manufacturing operations.

Safety & Classification

Danger
Classification:

Flam. Liq. 3; Acute Tox. 4 *; Acute Tox. 4 *; Acute Tox. 4 *; Skin Corr. 1A; Aquatic Acute 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H226

Flammable liquid and vapour.

H332

Harmful if inhaled.

H312

Harmful in contact with skin.

H302

Harmful if swallowed.

H314

Causes severe skin burns and eye damage.

H400

Very toxic to aquatic life.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Inhalation

Harmful

Measures if vapours or dust are inhaled

First Aid Actions

  • +P304IF INHALED:
  • +P340Remove person to fresh air and keep comfortable for breathing.
  • +P311Call a POISON CENTER/doctor.

Related hazard statements:

Skin Contact

Harmful

Measures if substance contacts the skin

First Aid Actions

  • +P302IF ON SKIN:
  • +P352Wash with plenty of water.
  • +P361Take off immediately all contaminated clothing.
  • +P313Get medical advice/attention.

Related hazard statements:

Eye Contact

Harmful

Measures if substance gets into the eyes

First Aid Actions

  • +P305IF IN EYES:
  • +P351Rinse cautiously with water for several minutes.
  • +P338Remove contact lenses, if present and easy to do. Continue rinsing.
  • +P313Get medical advice/attention.

Related hazard statements:

Ingestion

Harmful

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number2218
ADR Class8
Packing GroupII
Tunnel CodeD/E
Proper Shipping NameAcrylsäure, stabilisiert
Marine PollutantNo

Frequently Asked Questions

What is prop-2-enoic acid?

Prop-2-enoic acid is an unsaturated carboxylic acid with the molecular formula C3H4O2 and CAS number 79-10-7. Also known as acrylic acid, it contains a vinyl group directly attached to a carboxylic acid functional group. This organic compound has a molecular weight of 72.06 g/mol and is classified as a hazardous substance due to its corrosive, toxic, and flammable properties. It serves as an important building block in polymer chemistry and various industrial applications.

What are the physicochemical properties of prop-2-enoic acid?

Prop-2-enoic acid is a colorless liquid at room temperature with a characteristic pungent, acrid odor. It is highly miscible with water and most organic solvents due to its polar carboxylic acid group and relatively small molecular size. The compound has a boiling point around 141°C and freezing point of 13°C. It readily polymerizes, especially when exposed to heat, light, or catalysts, making it highly reactive and requiring stabilizers during storage and handling.

What is prop-2-enoic acid used for?

Prop-2-enoic acid is primarily used as a monomer in the production of polyacrylic acid and various acrylic polymers. It serves as a key raw material for manufacturing superabsorbent polymers, adhesives, coatings, and textiles. The compound is also utilized in the production of acrylic esters, which are used in paints, sealants, and plastic materials. Additionally, it finds applications in water treatment chemicals, detergents, and as a chemical intermediate in pharmaceutical and agricultural products.

How to handle prop-2-enoic acid safely?

Prop-2-enoic acid requires strict safety measures due to its corrosive and toxic nature. Personal protective equipment must include chemical-resistant gloves, safety goggles, face shield, and acid-resistant clothing. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Avoid contact with skin, eyes, and clothing as it causes severe burns. Keep away from heat sources, sparks, and open flames due to its flammable classification (Flam. Liq. 3).

How to store prop-2-enoic acid correctly?

Prop-2-enoic acid must be stored in a cool, dry, well-ventilated area away from heat sources and direct sunlight to prevent polymerization. Use appropriate stabilizers and maintain temperatures below 25°C. Store in tightly closed, corrosion-resistant containers made of suitable materials like stainless steel or specialized plastics. Keep separated from bases, oxidizing agents, and polymerization catalysts. Ensure proper containment systems are in place to handle potential spills and leaks.

What to do in case of contact with prop-2-enoic acid?

Prop-2-enoic acid contact requires immediate emergency response due to its corrosive nature. For skin contact, immediately flush with large amounts of water for at least 15 minutes while removing contaminated clothing. In case of eye contact, rinse thoroughly with water for at least 15 minutes and seek immediate medical attention. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek urgent medical care. Always consult a physician after any significant exposure.

How to dispose of prop-2-enoic acid properly?

Prop-2-enoic acid disposal must comply with local and European waste regulations as it is classified as hazardous waste. Small quantities can be neutralized carefully with appropriate bases under controlled conditions by trained personnel. Larger amounts should be collected by licensed hazardous waste disposal companies. Never discharge into drains, soil, or water bodies due to its aquatic toxicity classification (Aquatic Acute 1). Maintain proper documentation for waste tracking and regulatory compliance throughout the disposal process.

How to transport prop-2-enoic acid?

Prop-2-enoic acid is classified under ADR Class 8 (corrosive substances), Packing Group II, indicating moderate danger level for transport. It requires appropriate UN-approved packaging, proper labeling with corrosive hazard symbols, and transport documentation. Vehicles must be equipped with appropriate emergency equipment and drivers need ADR certification. Temperature control during transport is essential to prevent polymerization. Segregation from incompatible materials and compliance with quantity limitations per transport unit are mandatory requirements.

Is prop-2-enoic acid subject to specific regulations?

Prop-2-enoic acid is subject to comprehensive European chemical regulations including REACH registration requirements and CLP classification obligations. It is not currently listed as a Substance of Very High Concern (SVHC). The substance must be classified and labeled according to CLP regulation with appropriate hazard pictogrammes (GHS02, GHS05, GHS07, GHS09) and the danger signal word. Industrial users must implement risk management measures and comply with occupational exposure limits and environmental discharge restrictions.

Where to buy prop-2-enoic acid in Europe?

Prop-2-enoic acid is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides this substance to industrial customers across Europe with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical distributor, OYSI ensures quality standards and handles the complex logistics associated with hazardous materials transport. Contact OYSI directly for availability, technical specifications, and delivery options tailored to your specific industrial requirements and location.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.