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MagChem® 40

CAS Number
1309-48-4
EC Number
215-171-9
Chemical Name
Magnesium Oxide

MagChem® 40 is a high purity, light burned magnesium oxide produced from magnesium-rich brine and dolomitic lime. This fine white powder has a very high reactivity index and a low bulk density.

Properties

Physical Form
  • Powder
  • Solid

Product families

Applications

Applications
  • Industrial — Other Industrial Applications
Industrial — Oil, Gas & Mining
  • Mining
  • Other Oil Gas & Mining Applications

Product Families

Elastomers — Elastomer Additives
  • Fillers & Extenders
  • Other Elastomer Additives
Plastics — Polymer Additives
  • Fillers & Extenders
  • Other Plastic Additives

Other characteristics

Brand
MagChem
Synonyms
Magnesia, MgO
Functions
Filler
Usage

MagChem 40 is well suited for many rubber formulations, particularly neoprene. It finds wide use in the production of oil additives, as a filler, anti-caking agent, and pigment extender. MagChem 40 is extremely efficient in chemical processes where ease of conversion is a factor.

Markets
Industrial
Storage

Store in dry place. Exposure to moisture may cause caking.

PACKAGING

Martin Marietta Magnesia Specialties offers avariety of packaging options, including bulk (truck and railcar), bags, and bulk sacks

Technology
  • Elastomers
  • Plastics
Packaging Type
  • Bags
  • Super Sacks
Material Features
High Reactivity
Plastics and Elastomers Functions
Filler

Technical data

Table 1 of 1

13 rows
CharacteristicValueUnit
Magnesium Oxide (MgO)98.2%
Calcium Oxide (CaO)0.8%
Silicon Oxide (SiO2)0.35%
Iron Oxide (Fe2O3)0.15%
Aluminum Oxide (Al2O3)0.1%
Chloride (Cl)0.3%
Sulfate (SO3)0.05%
Loss on Ignition2.3%
Loose Bulk Density22 (0.35)lb/ft3 (g/cm3)
Median Particle Size3 - 8microns
Surface Areamin. 40m2/g
Activity Index9seconds

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