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Magnesium Oxide for Rubber Vulcanize

Commercial name: Magnesium Oxide
Other name: Calcined magnesium oxide, Magnesium oxide, Magnesia usta, Calcined magnesia, Magcal, Maglit, elastomag, marmag, MgO
Key chemical content: MgO
Producing method: Heating brucite at 750~1100℃, and grind into powders.
Application: vulcanizer, scorch retarder, acid absorber and filler
CR (Chloroprene Rubber): Magnesium hydroxide for rubber vulcanize is widely used as vulcanizing agent to reduce the activity of zinc oxide and prevent early crosslinking.
Neoprene: Magnesium hydroxide is used as vulcanizing agent and scorch retarder.
Fluororubber: Magnesium hydroxide is used to improve scorching performance and heat stability of vulcanized rubber by absorbing hydrogen fluoride (HF).
CPE: Magnesium hydroxide is a cheap heat stabilizer widely used to absorb hydrogen chloride (HCl).
PVC: Magnesium hydroxide is widely used as heat stabilizer to absorb acid in PVC compound, and it is non-toxic.

Data Sheet

Grade YX-85 YX-90 YX-92 YX-94
MgO % 85.0 90.0 92.0 94.0
Mg % 51.0 54.0 55.2 56.4
SiO2 % 3.5 3.0 2.5 2.0
CaO % 3.0 3.0 2.0 2.3
Fe2O3 % 1.0 1.0 0.8 0.6
Al2O3 % 0.3 0.2 0.2 0.2
L.O.I % 6.2 2.8 2.5 1.0
Particle size mesh 325
Bulk density g/cm3 2.94
Melting point ℃ 2852
Boiling point ℃ 3600


25kg/bag PP woven bag with PE liner/paper bag with PE liner
1000kg/bag, Jumbo bag


Store in dry and cool place, and keep away from moisture


This is not dangerous product. Please make sure there are covers avoid raining and moisture during transportation.
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