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Product Name: Sodium Bicarbonate/Sodium Carbonate Buffer
Synonyms: Bicarbonate Buffer, Soda Ash Buffer
Recommended Use: Laboratory reagent, pH buffering agent
Manufacturer: Contact supplied on packaging
CAS Numbers: Sodium Bicarbonate – 144-55-8, Sodium Carbonate – 497-19-8
Emergency Phone: Phone number as listed on manufacturer’s materials
Classification: Not classified as hazardous according to OSHA or GHS standards
Signal Word: None
Hazard Statements: May cause mild eye and skin irritation
Pictograms: None required by US standards
Precautionary Statements: Avoid contact with eyes and skin, avoid inhaling dust
Sodium Bicarbonate: 40–60%
Sodium Carbonate: 40–60%
Impurities: No major hazardous impurities expected under normal use
Additional Components: Purified water or other diluents by formulation requirement
Inhalation: Move to fresh air, seek medical attention if symptoms persist
Skin Contact: Rinse thoroughly with water, remove contaminated clothing
Eye Contact: Flush eyes with water for several minutes, consult a physician for persistent irritation
Ingestion: Rinse mouth, drink small amount of water, avoid vomiting, seek medical assistance if unwell
Suitable Extinguishing Media: Use water spray, dry chemical, foam, or CO2
Hazards from Combustion: Decomposition releases carbon dioxide and water vapor
Protective Gear: Firefighters should use self-contained breathing apparatus and protective clothing
Fire/Explosion Risk: Not flammable, does not support combustion by itself
Personal Precautions: Use personal protective equipment to minimize contact
Spill Cleanup: Sweep up spills, place in appropriate containers for disposal, avoid excessive dust
Environmental Precautions: Prevent large amounts from entering waterways, inform relevant authorities in case of significant release
Disposal: Follow local environmental regulations for buffer disposal
Handling: Avoid inhaling dust, use with adequate ventilation, wear protective gear as needed
Storage: Store in a cool, dry location out of direct sunlight, keep containers tightly sealed to prevent contamination and moisture absorption
Incompatible Materials: Acids, strong oxidizers
Recommended Storage Materials: Sealed plastic or glass containers
Exposure Limits: No specific occupational exposure limits established by OSHA or ACGIH for either component
Engineering Controls: Provide eye wash stations and adequate ventilation in work area
Personal Protective Equipment: Gloves, safety goggles, lab coat or apron, dust mask for large amounts
Hygiene Measures: Wash hands thoroughly after handling, remove contaminated clothing before eating or drinking
Appearance: White crystalline solid or powder
Odor: Odorless
pH: Approximately 9 to 11 in solution, depending on ratio
Melting Point: Sodium Bicarbonate decomposes at 50°C, Sodium Carbonate melts at about 851°C
Solubility in Water: Soluble
Relative Density: About 2.2 g/cm³
Boiling Point: Not applicable (decomposes before boiling)
Evaporation Rate: Not relevant
Vapor Pressure: Not applicable
Partition Coefficient: Not available for mixture
Chemical Stability: Stable under normal temperatures and pressures
Hazardous Reactions: Contact with acids releases carbon dioxide gas, can cause vigorous bubbling
Conditions to Avoid: Excess heat, contact with strong acids
Hazardous Decomposition Products: Carbon dioxide, water
Polymerization: Will not occur
Acute Toxicity: Low toxicity, not expected to pose significant hazard in small quantities
Skin/Eye Contact: May cause mild irritation, especially in prolonged or repeated exposure
Inhalation: Excessive inhalation of dust may cause mild respiratory discomfort
Ingestion: Large amounts could lead to gastrointestinal discomfort, including nausea and vomiting
Chronic Effects: No evidence of chronic toxicity at typical occupational exposures
Ecotoxicity: Not acutely toxic to aquatic life, but extreme pH changes in small bodies of water could threaten sensitive species
Persistence and Degradability: Components dissolve and dissociate into naturally occurring ions
Bioaccumulation Potential: No significant bioaccumulation expected
Mobility in Soil: Components highly soluble, will move through soil and eventually enter water systems
Waste Treatment: Dispose of as non-hazardous chemical waste according to state, federal, and local guidelines
Packaging Disposal: Rinse and recycle or dispose of used containers according to local regulations
Environmental Caution: Avoid large direct discharges to sewage or surface waters that could alter pH balance
UN Number: Not regulated for transport
Transport Hazard Class: Not classified as a dangerous good
Packing Group: Not applicable
Marine Pollutant: No
Special Precautions: Protect packaging from moisture and rough handling during shipment
TSCA Status: All components listed or exempt
OSHA Status: Not classified as hazardous
SARA Title III: Not reportable under Sections 302, 304, or 313
California Proposition 65: Not listed
WHMIS (Canada): Not controlled product
