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Olivine, Magnesium-iron Silicate, Ferro Magnesium Silicate, 1314-13-2

Olivine, Magnesium-iron Silicate, Ferro Magnesium Silicate, 1314-13-2

OLIVINE [(Mg,Fe)₂SiO₄]

1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY

Parameter Description
Product Name Olivine
Chemical Formula (Mg,Fe)₂SiO₄
Mineral Class Magnesium-iron silicate
Appearance Greenish gray to brown grains
Hardness (Mohs) 6.5 – 7
Density ~3.2 – 3.4 g/cm³
Melting Point ~1,200 – 1,300 °C (decomposes)
Property Abundant underground, rapidly weathers on surface
CAS Number 1314-13-2 (general CAS for magnesium iron silicate)

CHEMICAL DESCRIPTION:

Olivine is a magnesium-iron silicate mineral with the chemical formula (Mg,Fe)₂SiO₄. It forms a solid solution series between forsterite (Mg₂SiO₄) and fayalite (Fe₂SiO₄), depending on the magnesium (Mg) to iron (Fe) ratio. It has high refractory properties and is widely used as a refractory material in the steel industry. Although abundant underground, it weathers rapidly on the surface.

2. PHYSICAL PROPERTIES

Property Value
Appearance Greenish gray to brown grains
Hardness (Mohs) 6.5 – 7
Density ~3.2 – 3.4 g/cm³
Melting Point ~1,200 – 1,300 °C (decomposes)
Crystal System Orthorhombic
Color Green, yellowish green, brown
Specific Gravity 3.2 – 3.4

3. CHEMICAL COMPOSITION (TYPICAL)

Component Formula Typical Ratio (%)
Magnesium Oxide MgO 47 – 50
Silicon Dioxide SiO₂ 38 – 41
Iron Oxide Fe₂O₃ 7 – 9
Calcium Oxide CaO 0.2 – 0.8
Aluminum Oxide + Titanium Dioxide Al₂O₃ + TiO₂ 1.8 – 2.0
Loss on Ignition L.O.I. Max. 1.5

4. PRODUCT SIZES

Product Type Grain Size (mm)
Refractory App Sand 0 – 1, 1 – 2, 1 – 3
TDK Sand 0 – 1, 1 – 3
EBT Sand 1 – 5, 2 – 6, 2 – 8, 3 – 8, 4 – 8
AFS 40 – 45, 45 – 50, 40 – 50

5. APPLICATIONS

Sector Application
Steel Industry Refractory material, tap hole filler, EBT (Eccentric Bottom Tapping) sand
Foundry Foundry sand
Refractory Applications High-temperature refractory materials
Industrial Processes High-temperature processes
Agriculture Soil conditioner (olivine regulates soil pH)
Carbon Capture Natural carbon capture and storage applications

6. TECHNICAL PROPERTIES

Property Description
Refractory Property Resistant to high temperatures
Chemical Resistance Basic character; resistance to slag reaction
Thermal Shock Resistance Good
Melting Behavior Decomposes at ~1,200-1,300°C
Service Life Long service life depending on application

7. REFRACTORY APPLICATIONS

Application Description
Tap Hole Filler Used for sealing furnace tap holes in steel production
EBT Sand Used in Eccentric Bottom Tapping systems
TDK Sand Used as furnace filling material
Refractory App Sand General refractory applications

8. HANDLING AND STORAGE

Parameter Information
Storage Conditions Dry, enclosed area; protect from moisture
Storage Temperature Room temperature
Keep Away From Moisture, strong acids
Shelf Life Unlimited (under proper storage)
Packaging Big Bags, bags, custom upon request
Handling Notes Avoid dust formation; avoid eye and respiratory contact

Personal Protective Equipment:

  • Dust mask (P2 or N95)

  • Safety goggles

  • Protective gloves

  • Protective clothing

9. SAFETY AND TOXICOLOGY

Parameter Value
GHS Classification Not classified (not hazardous)
Toxicity Low
Dust Inhalation Dust inhalation may cause respiratory tract irritation
Skin Contact May cause mild irritation
Eye Contact May cause mild irritation
Carcinogenicity Not classified
Ecotoxicity Low
Special Risk Magnesium oxide and silica dust inhalation poses respiratory risk

SPECIAL WARNINGS:

  • Silica and magnesium oxide dust inhalation may cause respiratory tract irritation

  • Appropriate dust control measures should be taken

  • Avoid contact with molten slag in high-temperature applications

10. ENVIRONMENTAL INFORMATION

Parameter Information
Ecotoxicity Low
Bioaccumulation Not expected
Environmental Impact Low
Waste Management Disposal according to local regulations
Recycling Possible
Carbon Capture Olivine reacts with CO₂ to form carbonate (natural carbon capture)

11. TRANSPORT INFORMATION

Parameter Information
UN Number Not classified as dangerous for transport
Hazard Class Not classified
Packing Group Not applicable
Proper Shipping Name Olivine
Marine Pollutant No
ADR/RID Label None

12. SUMMARY AND CRITICAL WARNINGS

SUMMARY:

Olivine is a magnesium-iron silicate mineral with the chemical formula (Mg,Fe)₂SiO₄. It forms a solid solution series between forsterite (Mg₂SiO₄) and fayalite (Fe₂SiO₄). It has a Mohs hardness of 6.5-7 and a density of ~3.2-3.4 g/cm³. Due to its high refractory properties, it is widely used as a refractory material in the steel industry.

Key Properties:

Property Value
Formula (Mg,Fe)₂SiO₄
CAS No 1314-13-2
Hardness (Mohs) 6.5 – 7
Density ~3.2 – 3.4 g/cm³
Melting Point ~1,200 – 1,300 °C
MgO 47 – 50%
SiO₂ 38 – 41%
Fe₂O₃ 7 – 9%

CRITICAL WARNINGS:

  1. Refractory Application: Used as tap hole filler, EBT sand, and refractory material in the steel industry. Resistant to high temperatures.

  2. Chemical Composition: MgO (47-50%) and Fe₂O₃ (7-9%) content determine olivine's refractory properties. High MgO content provides basic character.

  3. Particle Size: Available in grain sizes ranging from 0-1 mm to 4-8 mm depending on application.

  4. Surface Weathering: Although abundant underground, olivine weathers rapidly on the surface. Must be protected from moisture during storage.

  5. Carbon Capture: Olivine reacts with CO₂ to form magnesium carbonate. This property is being researched for natural carbon capture and storage applications.

  6. Dust Control: Silica and magnesium oxide dust inhalation may cause respiratory tract irritation. Appropriate dust control measures should be taken.

Important Disclaimer: This Technical Data Sheet (TDS) is for informational purposes only. The information provided is based on available data and is believed to be accurate. However, the user is solely responsible for determining the suitability of the product for their specific applications and for complying with all applicable regulations and safety requirements. For complete safety, handling, storage, and regulatory compliance information, always refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier. All local, national, and international regulations must be followed when working with Olivine. Appropriate occupational health and safety measures must be taken for high-temperature applications.

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