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Feature
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Light Magnesium Oxide
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Heavy Magnesium Oxide
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Production Method
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Calcined at moderate temperatures (400°C to 900°C).
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Calcined at high temperatures (above 1000°C to 1200°C).
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Physical Appearance
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Very bulky, white powder.
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Relatively dense, white powder.
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Density & Flow
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Low bulk density: High porosity, larger volume, can be fluffy.
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High bulk density: Denser, compact, less voluminous, flows better.
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Reactivity
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High reactivity due to high surface area.
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Lower reactivity due to denser structure.
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Nutritional & Health Supplements (Human)
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Preferred for specific formulations: High reactivity aids rapid disintegration and dissolution in stomach acid. Ideal for effervescent tablets or powders due to quick reaction with acids.
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Suitable for tableting: High density and good flow make it ideal for direct compression in high-speed tablet manufacturing, ensuring uniform tablet weight.
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Pharmaceutical (Human & Veterinary)
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Antacid Formulations: High reactivity allows rapid neutralization of stomach acid. Used as an Active Pharmaceutical Ingredient (API) intermediate.
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API and Excipient: Used as a mineral source (API) and as an excipient (binder/filler) in drug manufacturing due to superior handling properties.
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Feed Additives (Animal Nutrition)
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Mineral Source: Used to correct magnesium deficiencies in feed.
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Preferred for mineral supplements and premixes: High density and low dusting allow homogeneous mixing with other dense components, resist segregation during transport, and are easier to handle.
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