Xiamen Ditai Chemicals Co., Ltd. is one of the most reliable manufacturers and suppliers of mthpa (methyltetrahydrophthalic anhydride) cas 26590-20-5 in China. Welcome to buy high quality chemical products at competitive price from our factory.

MTHPA (Methyltetrahydrophthalic Anhydride) CAS 26590-20-5

MTHPA (Methyltetrahydrophthalic Anhydride) is a high-performance alicyclic anhydride, widely recognized as a key intermediate and curing agent in the chemical industry. This product has completed REACH registration, fully complying with EU chemical regulations (EC) No 1907/2006, and MSDS download is available to provide detailed safety, handling and storage information for users.

Product Synonyms

Common synonyms of MTHPA include: Methyltetrahydrophthalic Anhydride, MeTHPA, 3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-3-methyl-, Tetrahydro-4-methylphthalic Anhydride, Tetrahydro-3-methylphthalic Anhydride, Methyl-4-cyclohexene-1,2-dicarboxylic Anhydride, and (Methyltetrahydro)phthalic Anhydride.

Product Properties & Physical Characteristics

MTHPA is a colorless to pale yellow transparent liquid at room temperature, and it can turn into a white crystalline solid at low temperatures, with a slight irritating odor. 

Key physical properties are as follows: density is about 1.20-1.25 g/cm³ at 20℃; melting point is approximately -15℃ (for liquid isomer mixture); boiling point is above 200℃; viscosity is 50-100 mPa·s at 25℃; it is insoluble in water (hydrolyzes slowly when in contact with water) but soluble in benzene, acetone, ethyl acetate and other organic solvents; refractive index is about 1.5500; storage conditions require keeping in a cool, dry and ventilated place, away from high temperature, open flame and incompatible substances.

Product Applications

Epoxy Resin Curing Agent: It is the most commonly used liquid anhydride curing agent for epoxy resins, suitable for medium-temperature curing. The cured products have high heat resistance, high mechanical strength and excellent electrical insulation, which are widely used in motor, dry-type transformer, high-voltage switch, transformer, LED packaging, electronic component potting and PCB board insulation coating.

New Energy Field: Applied in the curing of wind power blade composites, which can improve the fatigue strength of composites by more than 30%, meeting the performance requirements of new energy equipment.

FAQ

1. What are the key advantages of MTHPA as an epoxy resin curing agent?

MTHPA has obvious advantages as an epoxy resin curing agent: it has low volatility and low toxicity, can be stored for a long time at room temperature, and has a low freezing point, which is convenient for transportation and use. The cured products have excellent heat resistance, mechanical strength and electrical insulation, and good yellowing resistance, which is suitable for various high-demand application scenarios such as electronic packaging and composite materials.

2. Is MTHPA suitable for the European market and what compliance documents can be provided?

Yes, MTHPA has completed REACH registration, which meets the access requirements of the European market. In addition to REACH registration documents, MSDS download is available to provide detailed safety information, and relevant test reports can be provided according to user needs to ensure compliance in use and import.

3. What precautions should be taken when storing and transporting MTHPA?

When storing MTHPA, it should be placed in a cool, dry and ventilated warehouse, away from high temperature, open flame and strong oxidants, and avoid contact with water to prevent hydrolysis. During transportation, it should be handled with care to avoid collision and leakage, and it should be transported in accordance with the relevant regulations of dangerous chemicals (corrosive substances).

Email: sales@xmditai.com                  Whatsapp/WeChat: +86 13806063016

Hot Tags: mthpa (methyltetrahydrophthalic anhydride) cas 26590-20-5, China mthpa (methyltetrahydrophthalic anhydride) cas 26590-20-5 manufacturers, suppliers, factory, 2 2 Ethoxyethoxy ethanol, High Purity Benzophenone, High Quality Bis 2 ethylhexyl Terephthalate, N Propyl Acetate, Perchloroethylene, Sodium Dichloroisocyanuric SDIC