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Popular Sales Mthpa 99.5% (CAS 11070-44-3)

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  • Last update:

    2017-10-18 01:43

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Hefei TNJ Chemical Industry Co., Ltd.

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Contact：Ms. Sophia Zhang(Mr.)  

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Area：Anhui

Address：Anhui

Website： http://tnjchem.kskuntai.com/

Product Details


Product name Methyltetrahydrophthalic anhydride (MTHPA)
CAS No. 26590-20-5
EINECS 234-290-7
M.F. C9H10O3
M.W. 166.17
Chemical Structure  

Properties		  
- Colorless to slight yellow liquid
- It has high purity and light color and luster. It can be directly adjusted into all kinds of colorful epoxy resin products.
- It has low viscosity. It has the characteristics like: good casting, embedment and impregnation technology. It can improve
the performance of curing material and the affinity of lamination and basic material.
- It has the characteristics like: stable performance, low freezing point and long using life. It can be stored for a long time at room temperature and easy for pipeline transportation. It is suitable for production automation and severe cold region.
- It has small volatility and low toxicity, only 1/20 - 1/40 toxicity of the amine curing agent. Its irritation to human eyes and skin is small.
-It has good dissolubility. This product can dissoluble with all epoxy resins. The mixing viscosity is low, meanwhile, has low pyrogenic
 effect and shrinkage during the heated curing process.
 

Specification 		  
Appearance  Light yellow transparent liquid
Color (Pt-Co) ≤200 ≤200 ≤300 ≤200 ≤80 ≤200
Crystallization point ≤10ºC ≤-5ºC ≤-15ºC ≤-15ºC ≤-15ºC ≤-15ºC
Acid value, (mgKOH/g) 660.0~685.0 660.0~685.0 660.0~685.0 660.0~685.0 660.0~685.0 660.0~685.0
Anhydride conten ≥40.5% ≥40.5% ≥40.5% ≥40.5% ≥40.5% ≥40.5%
Viscosity (Pa.s, 25ºC) 0.03~0.06 0.03~0.06 ≤0.05 ≤0.05 ≤0.05 0.03~0.08
Density (g/cm3, 20ºC) 1.210±0.05 1.210±0.05 1.210±0.05 1.210±0.05 1.210±0.05 1.210±0.05
Free acid ≤0.50% ≤0.50% ≤0.50% ≤0.50% ≤0.50% ≤0.50%


Application		  
Methyl tetra-Hydro Phthalic Anhydride (MTHPA) was used in the curing agents for epoxy resins, dry-type transformers, high voltage 
switches, mutual inductors, condensers, LED, etc. Relative to the general MTHPA, this specification have the following characteristics:

- Light color when curing ,suitable for white or colorless transparent products;
- Good heat resistance, higher Tg point.
- Faster curing speed , saving the amount of promoter;
- Larger viscosity, moisture absorption higher than the general MTHPA, shall be sealed.
 

Packing		  
220kg per Steel drum ,17.6mt/20'FCL; 
1150kg/IBC Drum, 20.7mt/20'FCL;
23mt/ISO Tank