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Product Name: Magnesium Nitrate
Chemical Formula: Mg(NO3)2
CAS Number: 10377-60-3
EC Number: 233-826-7
Synonyms: Nitromagnesite, Magnesium Dinitrate
Recommended Use: Laboratory reagent, fertilizer ingredient, oxidizing agent
Supplier Identification: Manufacturer contact details appear on product label
GHS Classification: Oxidizing solid (Category 3); Eye irritation (Category 2A)
Signal Word: Warning
Hazard Statements: May intensify fire; oxidizer. Causes serious eye irritation.
Pictograms: Flame over circle, exclamation mark
Precautionary Statements: Keep away from heat/sparks/open flames. Wear protective gloves and eye protection. Wash hands thoroughly after handling. Avoid breathing dust.
Chemical Name: Magnesium Nitrate Hexahydrate
Concentration: Typically 98-100%
Impurities: May contain trace levels of magnesium oxide and nitrate compounds
Molecular Weight: 256.41 g/mol (for hexahydrate form)
Inhalation: Move to fresh air and keep at rest, seek medical help for persistent symptoms like coughing or irritation.
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water, consult physician if irritation occurs.
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if easy to do, continue rinsing and seek medical advice.
Ingestion: Rinse mouth and drink water, do not induce vomiting, contact a poison center or physician as soon as possible.
Symptoms: Inhalation may cause respiratory discomfort or coughing. Eye exposure can cause redness, pain and watering. Skin exposure might result in mild irritation.
Suitable Extinguishing Media: Use water spray, dry chemical or carbon dioxide. Avoid halogenated extinguishing agents.
Specific Hazards: Magnesium Nitrate supports combustion and can intensify fires due to its oxidizing properties. When heated, may release toxic nitrogen oxides.
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective gear.
Advice: Cool containers with water spray to prevent rupture from heat. Prevent runoff from entering drains or water sources.
Personal Precautions: Use personal protective equipment including gloves, goggles and dust mask. Avoid creating dust.
Environmental Precautions: Prevent spillage from entering drains, sewers and waterways. Inform authorities if environmental contamination occurs.
Cleanup Methods: Sweep up or vacuum spilled material, place in a suitable container for disposal. Wash area with plenty of water after cleanup.
Handling: Work in a well-ventilated area, wear appropriate personal protection to avoid inhalation or contact. Avoid exposure to incompatible substances like strong reducing agents and organic materials.
Storage: Store in a cool, dry, well-ventilated area away from heat and direct sunlight. Keep container tightly closed. Isolate from combustible materials and sources of ignition.
Occupational Exposure Limits: No specific national limits established for magnesium nitrate, general dust limits may apply.
Engineering Controls: Use local exhaust ventilation or process enclosures to minimize dust generation.
Personal Protective Equipment: Safety goggles, impervious gloves, lab coat or coveralls, dust mask or respirator where dust can be generated.
General Hygiene Measures: Wash hands, face and exposed skin after handling. Do not eat, drink or smoke during use.
Appearance: White crystalline solid
Odor: Odorless
pH: Neutral to slightly acidic in aqueous solution
Melting Point: Decomposes above 129 °C (hexahydrate)
Boiling Point: Not applicable (decomposes on heating)
Solubility: Highly soluble in water
Density: About 1.45 g/cm3 (hexahydrate)
Vapor Pressure: Negligible
Explosive Properties: None
Oxidizing Properties: Strong oxidizer
Chemical Stability: Stable under standard conditions.
Conditions to Avoid: Heat, open flames, sparks, direct sunlight.
Incompatible Materials: Strong reducing agents, organic materials, combustibles, powdered metals.
Hazardous Decomposition Products: Nitrogen oxides, magnesium oxide fumes on thermal decomposition.
Acute Toxicity: Low oral toxicity. Ingestion of large amounts can lead to gastrointestinal irritation, vomiting or diarrhea.
Skin Corrosion/Irritation: Mild irritant
Serious Eye Damage/Irritation: Causes moderate to severe eye irritation
Respiratory Sensitization: Dust may irritate the respiratory system
Chronic Effects: Prolonged exposure can increase risk of respiratory irritation; no evidence of carcinogenicity or reproductive toxicity
LD50 (oral, rat): More than 3000 mg/kg estimated
Aquatic Toxicity: Magnesium nitrate can promote eutrophication and algal blooms by releasing nitrate ions but poses low acute toxicity to aquatic organisms.
Persistence and Degradability: Inorganic compound, expected to remain in the environment without degradation.
Bioaccumulative Potential: No bioaccumulation expected.
Mobility in Soil: Readily migrates in soil due to high water solubility.
Waste Treatment Methods: Dispose of as hazardous waste according to local, regional and national regulations. Dissolved residue may be diluted and flushed only if allowed by environmental authority.
Contaminated Packaging: Dispose of empty containers as hazardous waste. Rinse packaging with plenty of water prior to disposal if regulations allow.
Environmental Precaution: Prevent discharge into drains, watercourses or onto soil.
UN Number: UN 1474
Proper Shipping Name: Magnesium nitrate
Transport Hazard Class: 5.1 (Oxidizing substance)
Packing Group: III
Labels: Oxidizer
Environmental Hazards: Not considered marine pollutant
Special Precautions: Avoid contact with combustibles and keep containers upright during transport.
OSHA Status: Not specifically regulated as hazardous; considered under general chemical hazard rules.
EPA Status: Listed under CERCLA and EPCRA for nitrate compounds.
TSCA Inventory: Listed
EU Regulation: Subject to REACH, classified as an oxidizer under CLP.
Other Regional Regulations: Follows chemical safety rules under National and International transport, workplace and environmental protection acts.
