Magnesia
High Purity Mg(OH)2 & MgO
Introduction of
Magnesia

Mg(OH)2 is a low smoke zero halogen flame retardant of plastic and rubber. Excellent flame retardant effect and can replace aluminum hydroxide. MgO is used for synthetic rubbers including CR and CSM to activate vulcanization, anti-scorching and acid neutralization.

Chemical analysis
Items Unit MB(OH)² MgO
XMH55 XMH15 XMH15ST M(S5-C2) HQS
Mg(OH)2 / MgO % ≥99 ≥97.5
Fe2O3 ≤0.05 ≤0.05 ≤0.05
CaO
Chloride as CI ≤0.40 ≤0.40
Laser Particle Size D50 5~6 1~2 1~3 1~1.6
Whiteness % ≥97 ≥97 ≥96 ≥96
LOI ≥30 ≥30
H2O ≤0.5 ≤0.5 ≤1 ≤0.5
Acid Insolubles ≤0.1 ≤0.1 ≤0.1
BET m²/g 7 14.1 6~9 55.1
Surface Treatment Fattic acid Silane