Uses Magnesite

dyed , polished magnesite beads

similar production of lime, magnesite can burned in presence of charcoal produce mgo, which, in form of mineral, known periclase. large quantities of magnesite burnt make magnesium oxide: important refractory material used lining in blast furnaces, kilns , incinerators. calcination temperatures determine reactivity of resulting oxide products , classifications of light burnt , dead burnt refer surface area , resulting reactivity of product, typically determined industry metric of iodine number. light burnt product refers calcination commencing @ 450 °c , proceeding upper limit of 900 °c - results in surface area , reactivity. above 900 °c, material loses reactive crystalline structure , reverts chemically inert dead-burnt product- preferred use in refractory materials such furnace linings.

magnesite can used binder in flooring material. furthermore, being used catalyst , filler in production of synthetic rubber , in preparation of magnesium chemicals , fertilizers.

in fire assay, magnesite cupels can used cupellation magnesite cupel resist high temperatures involved.

magnesite can cut, drilled, , polished form beads used in jewelry-making. magnesite beads can dyed broad spectrum of bold colors, including light blue color mimics appearance of turquoise.

occupational safety , health

people can exposed magnesite in workplace inhaling it, skin contact, , eye contact.

usa

the occupational safety , health administration (osha) has set legal limit (permissible exposure limit) magnesite exposure in workplace 15 mg/m total exposure , 5 mg/m respiratory exposure on 8-hour workday. national institute occupational safety , health (niosh) has set recommended exposure limit (rel) of 10 mg/m total exposure , 5 mg/m respiratory exposure on 8-hour workday.