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Name: Yeast Nitrogen Base (Amino Acid-Free) Appearance: Yellow to beige powder Chemical Family: Complex nutrient blend for yeast culture Common Uses: Microbiological media, fermentation, laboratory research Odor: Faint, yeasty
Classification: Considered non-hazardous under normal laboratory conditions Main Concerns: May cause mild irritation to eyes, skin, or respiratory tract in sensitive individuals GHS Symbol: None Precautionary Statements: Avoid dust inhalation, avoid extended skin contact, wash hands after use Potential Routes of Exposure: Inhalation, ingestion, skin, and eye contact
Component Breakdown: - Vitamins: Biotin, calcium pantothenate, folic acid, inositol, niacin, pyridoxine, riboflavin, thiamine - Salts: Ammonium sulfate, monopotassium phosphate, magnesium sulfate, sodium chloride - Trace Elements: Boric acid, copper sulfate, potassium iodide, ferric chloride, manganese sulfate, sodium molybdate, zinc sulfate Percentage of Ingredients: Precise percentages vary by manufacturer, but all components present in minor to moderate amounts, no one compound dominates the mix Allergens: No direct allergenic compounds, though dust may aggravate those with sensitivities
Eye Contact: Rinse thoroughly with clean water for several minutes; seek medical care if irritation continues Skin Contact: Wash skin with soap and water; remove contaminated clothing Inhalation: Move to fresh air, seek attention if symptoms persist Ingestion: Rinse mouth, drink water to dilute Symptoms: Itching, mild respiratory irritation, possible upset stomach after ingestion
Suitable Extinguishing Media: Use water spray, foam, dry chemicals, or carbon dioxide Combustibility: Powder can burn in a fire; dust may form explosive mixtures in air Special Protective Equipment: Firefighters should use self-contained breathing apparatus in hot environments Hazardous Combustion Products: May release oxides of nitrogen, sulfur, and carbon Unusual Fire/Explosion Hazard: Dust accumulation can contribute to potential flash fire events in closed, dry spaces
Personal Precautions: Use protective masks, avoid contact with skin and eyes Containment: Sweep gently to avoid creating airborne dust, minimize entry into waterways Cleanup Methods: Use a damp cloth or mop, dispose of material in a sealed container Environmental Precautions: Avoid runoff into drains or soil
Storage Requirements: Store in a tightly sealed container in a cool, dry place, away from direct sunlight Handling Advice: Avoid creating dust, use in well-ventilated areas, wash work surfaces after use Shelf Life: Typically stable for several years if stored properly Incompatible Materials: Strong acids or bases may degrade certain vitamins or elements
Engineering Controls: Local ventilation or dust extraction systems Eye Protection: Wear laboratory safety goggles Skin Protection: Gloves recommended for extended handling Respiratory Protection: Dust mask if airborne particles are present Work Practices: Avoid eating, drinking, or smoking around the material Exposure Limits: Not established for this blend
Physical State: Powder Color: Yellow to beige Solubility: Freely soluble in water; forms a cloudy solution Odor: Characteristic, faint, not offensive Melting Point: Not applicable Boiling Point: Not applicable pH (1% Solution): Range from 5.0 to 6.0 Particle Size: Fine, powders easily airborne
Chemical Stability: Stable under recommended storage and handling conditions Reactivity: No dangerous reactions known under intended use Conditions to Avoid: Humidity, moisture, direct sunlight Decomposition: Excessive heat leads to breakdown and loss of nutrient properties Incompatibility: Strong oxidizers, strong acids, or bases
Routes of Entry: Inhalation, skin, eyes, ingestion Primary Effects: May trigger mild irritation in sensitive users; not considered acutely toxic Long-Term Effects: No known chronic health effects from routine laboratory use Acute Toxicity: Data limited; not classified as toxic Sensitization: Uncommon, mostly for people with high dust sensitivity
Aquatic Impact: Not anticipated to cause significant environmental harm in small scale spills Persistence and Degradability: Composed largely of substances that break down naturally Bioaccumulation: Little evidence for substantial bioaccumulation Mobility in Soil: Highly water-soluble, not expected to persist in dry soils Other Ecological Concerns: Large releases could upset nutrient balances in aquatic ecosystems
Waste Treatment: Treat as non-hazardous laboratory waste Disposal Methods: Place in sealed containers, dispose through an approved waste contractor No known special requirements for incineration or landfill Do not flush large amounts to drains to avoid local ecological impact
UN Number: Not applicable due to non-hazardous status Transport Hazard Class: Not regulated Packing Requirements: Keep in moisture-proof packaging; minimize risk of package rupture Shipping: Safe for transit within normal temperature ranges No restrictions on air, road, or sea shipping in typical laboratory quantities
OSHA Classification: Not regulated as a hazardous substance TSCA Status: Components usually listed as permitted for laboratory use Labelling: No special hazard pictograms or warning phrases required by most agencies International Regulations: Little to no restriction for research applications Worker Protections: Standard laboratory hygiene and safety procedures suffice
