Methyl tetrahydrophthalic anhydride (MTHPA)

Product Name

CAS NO.

26590-20-5

Molecular formula

C₉H₁₀O₃

Molecular structure

Packing

Closed tight, protect against moisture; shelf life at room temperature is 1 yr. If absorbed moisture, it will generate precipitation.Then heat it at around 140℃ for recovery, and its property will not be affected.

Product usage

SHY—9601/9602/9603 are curing agents for epoxy resins, and mainly used in electronics, electric work and encapsulation industries. It is the major base metal for mutual inductors, insulated paint, high-voltage electrical apparatus and glass reinforced plastics.

REACH Registration

Class or division

Dangerous Goods	UN Number	Packing Group

H.S.CODE

Contact

Lincoln Lin
Tel:0086-573-82030555
E-mail:Lincoln@chinatrustworthy.com

Brief intro.
Methyl tetrahydrophthalic anhydride is MeTHPA for short. CAS#: 26590-20-5; molecular formula: C₉H₁₀O₃; molecular weight: 166.18; specific weight: 1.15; soluble in benzene, acetone etc., can absorb moisture.

Technical specification

Item	SHY—9601	SHY—9602	SHY-9603
Appearance	light yellow transparent liquid		colorless transparent liquid
Color (Pt-Co)	<300#	<200#	<100#
Density g/cm3 20℃	1.21±0.05		1.21±0.05
Crystallization point ℃﹤	-15		-15
Viscosity pa.s(25℃)	0.035—0.050		0.035~0.050
Acid value mgKOH/g	660-685		660-685
Anhydride content %	>40.5		>40.5
Heating loss %(120℃)	<2.0		<2.0

Use:
SHY—9601/9602/9603 are curing agents for epoxy resins, and mainly used in electronics, electric work and encapsulation industries. It is the major base metal for mutual inductors, insulated paint, high-voltage electrical apparatus and glass reinforced plastics.
Storage & transportation:
Closed tight, protect against moisture; shelf life at room temperature is 1 yr. If absorbed moisture, it will generate precipitation.Then heat it at around 140℃ for recovery, and its property will not be affected.

Product pic	Packing pic

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