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  • CAS No.:

    26590-20-5
  • Molecular Formula:

    C9H10O3
  • Quality Standard:

    Technical grade
  • Packing:

    220kg/iron drum
  • Mininmum Order:

    220kg

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  • Product Details

Find MTHPA suppliers from China, and select TNJ Chemical as the top MTHPA suppliers,factory and manufacturers. We offer best price of MTHPA with high quality. If you want to buy MTHPA, please feel free to contact sales@tnjchem.com


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

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

≤10℃

≤-5℃

≤-15℃

≤-15℃

≤-15℃

≤-15℃

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, 25℃)

0.03~0.06

0.03~0.06

≤0.05

≤0.05

≤0.05

0.03~0.08

Density (g/cm3, 20℃)

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
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