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    • Glacial Acrylic Acid GAA CAS 79-10-7
    • Glacial Acrylic Acid GAA CAS 79-10-7

    Glacial Acrylic Acid GAA CAS 79-10-7

    Glacial Acrylic Acid (GAA) CAS 79-10-7 is a high-purity unsaturated carboxylic acid chemically defined as propenoic acid, functioning primarily as the foundational monomer for Superabsorbent Polymers (SAP) and acrylic acid esters such as n-Butyl Acrylate. Characterized by its sharp, acrid odor and tendency to crystallize below 13°C, this corrosive liquid is utilized to synthesize water-soluble polymers for sludge treatment flocculants and acts as a key building block in the production of pressure-sensitive adhesives and high-performance coatings. We provide professional access to this material with competitive factory pricing and the ability to meet customized specifications (stabilized with MEHQ inhibitors ranging from 200ppm to MEHQ-free upon request) for various manufacturing requirements. Our commitment to technical transparency ensures that every shipment is accompanied by comprehensive MSDS, TDS, COA documentation to support your quality assurance protocols, and we maintain capacity for consistent bulk supply to facilitate large-scale industrial operations.

    • CAS: 79-10-7
    • Synonyms: 2-Propenoic acid, Propenoic acid, Vinylformic acid, Acroleic acid, Prop-2-enoic acid, GAA
    • Einecs: 201-177-9
    • Molecular Formula: C3H4O2
    • Grade: Glacial Grade (Purity ≥99.5%), Ester Grade.
    • Package: 200kg PE Drum or 23-24MT ISO Tank.
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    Product Description

    1 Physicochemical Properties (Technical Data)
    2 Applications
    3 Quality Assurance
    4 Storage, Handling & Safety
    5 Safety Precautions (HSE):

    Physicochemical Properties (Technical Data)

    The following specifications represent our standard Industrial Glacial Grade, fully aligned with GB/T 17529.1-2008 and international export standards.

    PropertySpecification
    AppearanceClear, colorless liquid
    Purity (Acrylic Acid)≥99.50%
    Color (APHA/Pt-Co)≤10
    Water Content≤0.10%
    Inhibitor (MEHQ)200 ±± 20 ppm (Standard)
    Furfural≤1.0ppm
    Freezing/Melting Point13°C
    Boiling Point141°C
    Flash Point50°C (Closed Cup)
    SolubilityMiscible with water, alcohol, ether

    Applications

    Acrylic Acid is a versatile monomer critical to downstream manufacturing:

    1. Superabsorbent Polymers (SAP):

    • Hygiene: The largest application. Neutralized acrylic acid is polymerized to create SAP found in baby diapers, adult incontinence products, and feminine hygiene items.
    • Agriculture: Used in soil amendments to retain water in arid environments.

    2. Coatings & Adhesives (Esters Production):

    • Precursor: Reacts with alcohols to form acrylate esters (Methyl, Ethyl, Butyl, and 2-Ethylhexyl Acrylate), which are essential binders for paints, coatings, and pressure-sensitive adhesives (PSA).

    3. Water Treatment:

    • Flocculants: Homopolymers (Polyacrylic Acid) and copolymers act as scale inhibitors and dispersants in industrial water cooling systems and detergents.

    4. Textile & Paper:

    • Used in the formulation of sizing agents and finishing chemicals to improve the durability and texture of fibers.

    Quality Assurance

    • Purity Verification: We utilize Gas Chromatography (GC) for every batch to precisely measure the purity (>99.5%) and identify trace organic impurities like Furfural or Propionic Acid.
    • Inhibitor Monitoring: The level of MEHQ is strictly tested using HPLC to ensure it remains within the specified range (typically 200ppm), guaranteeing stability during transit.
    • Pre-Shipment Inspection: Visual checks for clarity and color (APHA) are conducted immediately before drum filling or tank loading to ensure no contamination occurred during transfer.

    For an acrylic ester monomer used in coatings and adhesive systems, see n-Butyl Acrylate.

    Storage, Handling & Safety

    Critical Storage Conditions:

    • Temperature Control: Store between 15°C and 25°C.
      • Warning: Acrylic Acid freezes at ~13°C. Do not allow to freeze. Thawing crystallized acrylic acid requires dangerous specialized procedures to prevent localized overheating and explosive polymerization.
      • Warning: Temperatures above 35°C significantly increase the risk of runaway polymerization.
    • Oxygen Requirement: The inhibitor (MEHQ) requires dissolved oxygen to function. Do not store under an inert atmosphere (nitrogen) for extended periods; air headspace is necessary.

    Safety Precautions (HSE):

    • Corrosive & Flammable: Acrylic Acid causes severe skin burns and eye damage. It is also flammable.
    • PPE Recommendations:
      • Respiratory: Full-face respirator with organic vapor cartridges.
      • Skin: Chemical-resistant suit (Tychem or equivalent) and Butyl rubber gloves.
      • Eyes: Face shield and safety goggles are mandatory.
    • Emergency: In case of skin contact, immediately wash with Diphoterine (if available) or massive amounts of water for at least 15 minutes.

    Secure your supply of high-purity Glacial Acrylic Acid.

    Our logistics experts are experienced in handling dangerous goods (Class 8/3) shipments worldwide.

    👉 Get a Quote: info@industrochem.com

    FAQ - Technical & Supply Chain

    • Q:

      What is Glacial Acrylic Acid GAA CAS 79-10-7?

      A: Glacial Acrylic Acid is high-purity acrylic acid, chemically prop-2-enoic acid, with the molecular formula C3H4O2 and molecular weight about 72.06 g/mol. It is a clear, colorless liquid monomer that is miscible with water, alcohol, and ether.
    • Q:

      What is the difference between glacial acrylic acid and ordinary technical or ester grade acrylic acid?

      A: Glacial grade is the high-purity monomer, typically at least 99.5% acrylic acid, with low water and color and controlled inhibitor level. Ester or technical grades may be selected for specific downstream polymerization or esterification processes where different water or impurity limits apply.
    • Q:

      Why is MEHQ added to Glacial Acrylic Acid CAS 79-10-7?

      A: MEHQ, or monomethyl ether of hydroquinone, is a polymerization inhibitor that prevents premature polymerization during storage and transport. Standard glacial grade is usually stabilized with about 200 +/- 20 ppm MEHQ.
    • Q:

      How should frozen Glacial Acrylic Acid be thawed safely?

      A: GAA can freeze around 13 deg C, and thawing must be slow and uniform. Rapid or uneven heating can leave unstabilized crystals because MEHQ may concentrate in the liquid phase, so controlled thawing with gentle circulation is important before use.
    • Q:

      What are the main downstream applications of Glacial Acrylic Acid GAA?

      A: The largest use is making superabsorbent polymers for hygiene and agricultural water retention. It is also converted into acrylate esters for coatings and adhesives, and polymerized into acrylic acid-based dispersants, scale inhibitors, and flocculants for water treatment.

    Ordering & Documentation

    Key information for document requests, quotations, and supply planning.

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    Sample & Supply

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    Storage & Shipping

    Product-specific conditions are confirmed before order.

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