Dimethyl Terephthalate (DMT), with the molecular formula C10H10O4, is a crucial organic compound extensively used in the production of polyester resins, films, fibers, and engineering plastics. Recognized for its high purity and stability, DMT has gained wide-scale industrial relevance, especially in the chemical and textile sectors. As one of the reputed dimethyl terephthalate manufacturers, Sarna Chemicals brings years of experience and precision-driven innovation to the chemical manufacturing space.
What is Dimethyl Terephthalate (DMT)?
Dimethyl Terephthalate (DMT) is an aromatic ester formed from terephthalic acid and methanol. Structurally, it belongs to the ester functional group and has the chemical formula C10H10O4. It exists as a colorless, crystalline solid at room temperature and is known for its low toxicity and environmental safety in industrial processing.
DMT is primarily used as an intermediate in the manufacture of polyethylene terephthalate (PET), a common material in food packaging, plastic bottles, and synthetic fibers. It is also employed in the production of thermoplastics and copolyesters.
Chemical Properties of Dimethyl Terephthalate (C10H10O4)
- Molecular Formula: C10H10O4
- Molecular Weight: 194.18 g/mol
- Appearance: White to off-white crystalline solid
- Melting Point: 141 – 143 °C
- Boiling Point: 288 – 290 °C
- Solubility: Soluble in alcohol and ether, insoluble in water
- Stability: Stable under normal storage conditions
These properties make it highly suitable for controlled chemical reactions in a variety of industrial processes.
Method for Producing Dimethyl Terephthalate (DMT)
The production of dimethyl terephthalate involves either direct esterification of terephthalic acid or the oxidation and esterification of p-xylene. The second method, known as the oxidation process, is more widely used in industrial settings due to its efficiency and scalability.
Raw Materials Required
- p-Xylene (C8H10): The primary hydrocarbon feedstock
- Methanol (CH3OH): Used for esterification
- Air or Oxygen: Required for oxidation
- Catalysts: Cobalt, manganese, and bromide compounds are typically used
- Solvents and Process Enhancers: Acetic acid or other inert solvents
Process Flow: Oxidation and Esterification Route
Step 1: Oxidation of p-Xylene
The process begins with the oxidation of p-xylene in the presence of air and a catalyst system (typically cobalt-manganese-bromide) in an acetic acid medium. This results in the formation of terephthalic acid or its precursor, monomethyl terephthalate.
Reaction:
p-Xylene + O₂ → Terephthalic Acid (intermediate)
Step 2: Esterification
In this step, the terephthalic acid or its precursor is esterified using methanol under high pressure and temperature conditions. This reaction forms Dimethyl Terephthalate (DMT) and water as a by-product.
Reaction:
Terephthalic Acid + Methanol → Dimethyl Terephthalate + Water
Step 3: Purification
The crude DMT is then purified through fractional distillation and crystallization to remove impurities and by-products. This step is vital for obtaining high-purity DMT for use in polymer-grade applications.
Environmental and Safety Measures
At Sarna Chemicals, safety and environmental compliance are top priorities. The production process adheres to strict emission controls, waste management protocols, and safety standards to ensure that our dimethyl terephthalate (dmt) manufacturing in India remains sustainable and responsible.
Applications of Dimethyl Terephthalate (DMT)
As a versatile compound, dimethyl terephthalate finds extensive usage in various sectors, including:
- Polyester Manufacturing
DMT is the primary raw material in the manufacture of polyethylene terephthalate (PET) used in:
- Bottles and containers for food and beverages
- Packaging films
- Synthetic textile fibers (e.g., polyester clothing)
- Engineering Plastics
It is also used in the production of thermoplastics like polybutylene terephthalate (PBT), known for their strength and heat resistance.
- Industrial Resins
DMT is a core ingredient in the manufacture of unsaturated polyester resins used in automotive parts, coatings, and electronics.
- Film and Tape Applications
DMT-based polyesters are used in the creation of specialty films for data storage, photography, and insulation materials.
Advantages of DMT over Other Intermediates
- Ease of Handling: Solid form and moderate melting point make it easier to store and transport.
- Purity: High purification potential through distillation.
- Stability: Chemically stable and less reactive under normal storage conditions.
- Versatility: Compatible with various polymerization processes.
These benefits make DMT a preferred intermediate among dimethyl terephthalate suppliers globally.
Why Choose Sarna Chemicals as Your Dimethyl Terephthalate Supplier?
As a leading Dimethyl Terephthalate (DMT) Manufacturer in India, Sarna Chemicals brings state-of-the-art facilities, experienced chemical engineers, and a commitment to quality. Here’s why clients across sectors trust us:
- High-Purity Production: Our DMT meets international quality standards suitable for PET and PBT applications.
- Efficient Logistics: On-time delivery across India and international markets.
- Custom Packaging: Options for bulk and custom-sized orders.
- Technical Expertise: In-house R&D for product development and customization.
- Eco-Friendly Manufacturing: Green chemistry principles and environmental compliance.
This level of assurance has positioned us among the top dimethyl terephthalate manufacturers in the Indian chemical industry.
Global and Domestic Market Reach
Our production capacity and distribution network enable us to serve clients across India and key international markets. Whether you’re looking for dimethyl terephthalate suppliers for bulk purchase, research applications, or specialized polymer manufacturing, Sarna Chemicals is your trusted partner.
We cater to:
- Chemical processing industries
- PET packaging companies
- Fiber and textile manufacturers
- Research labs and R&D centers
- Engineering plastic producers
The demand for high-quality Dimethyl Terephthalate (DMT) is growing with the rising need for PET-based packaging, textiles, and specialty polymers. Its efficient production, particularly via the oxidation of p-xylene and subsequent esterification, ensures scalability and purity, making it a cornerstone compound in modern industrial chemistry.
At Sarna Chemicals, we combine innovation, safety, and efficiency to bring you the Best Quality Dimethyl Terephthalate (C10H10O4) tailored to meet global standards. Our expertise as leading dimethyl terephthalate manufacturers in India ensures that you get superior value, unmatched consistency, and environmentally conscious solutions.
Contact Sarna Chemicals – Your Trusted DMT Partner
Looking for reliable dimethyl terephthalate suppliers or want to place a bulk order for C10H10O4?
Partner with Sarna Chemicals – where innovation meets industrial excellence in Dimethyl Terephthalate (DMT) manufacturing.
For more info: https://www.sarnachemicals.com/
E-mail id: marketing@sarnachemicals.com
Call us: 9979863057
Location: Plot No.805/2&3,3rd Phase, G.I.D.C., VAPI – 396195, Gujarat, India