Physical Properties

Appearance : Pale yellow powder

Sp Gr. at 25 0C : 1.49 ( Typical)

Typical Analysis

Parameter Target/ Limits Test method
ICI ASTM
Melting Point (oC) 174 min 10-03-6 D1519
Loss at 100 oC for 2 hours % 0.5 max 10-03-3 D4571
Ash Content @ 850 oC % 0.5 max 10-03-21 D4574
Strength % 96 min 10-03-14 D1991

Solubility

Insoluble in water. Slightly soluble in petroleum ether. Soluble in alcohol and chloroform. Solubility in rubber approximately 0.25%

Notes on Uses

Accicure MBT is a fast curing accelerator suitable for most of the common rubbers. It is very flat curing and confers on the vulcanisates low modulus and excellent ageing properties; It is however too scorchy to use with appreciable loading of furnace blacks. In combination with guanidine accelerators, Accicure MBT gives fast curing high-modulus rubbers; such mixtures are often too scorchy for natural rubber compounds, but are recommended for SBR. Boosted with thiuram or a dithiocarbamate, Accicure MBT is popular for quick curing moulded articles. Accicure MBT causes only slight discolouration on exposure to light and also has useful peptising properties. The presence of stearic acid and zinc oxide is necessary for good cures.

Storage and Handling

Stable indefinitely under normal storage conditions.

No special handling precautions are necessary. Normal precautions to avoid contact with skin and eyes should be followed. For eyes, flush with plenty of water and seek medical advice.