Material Safety Data Sheet: Guanidine Carbonate

Identification

Product Name: Guanidine Carbonate
Chemical Formula: C2H7N3O2
CAS Number: 593-85-1
Synonyms: Guanidinium carbonate, Carbonic acid guanidinium salt
Recommended Use: Laboratory research, chemical synthesis, specialty manufacturing
Supplier Details: Company contact, address, emergency phone number
Emergency Overview: White crystalline solid; slight ammonia odor; soluble in water

Hazard Identification

Hazard Classification: Skin and eye irritant, category 2; Acute toxicity (oral), category 4
GHS Label Elements: Exclamation mark symbol
Signal Word: Warning
Hazard Statements: Causes skin irritation; may cause serious eye irritation; harmful if swallowed
Precautionary Statements: Use proper personal protection; wash hands thoroughly after handling; avoid inhalation of dust; seek medical attention for persistent symptoms
Routes of Exposure: Inhalation, ingestion, skin, and eye contact
Effects of Exposure: May cause headache, nausea, digestive irritation, eye and skin redness

Composition / Information on Ingredients

Chemical Name: Guanidine carbonate
Common Name: Guanidine carbonate
Concentration: 98-100%
Impurities: Water (<1%), minor organic byproducts
CAS Number: 593-85-1
Molecular Weight: 138.11 g/mol

First Aid Measures

Inhalation: Move the person to fresh air immediately. Seek medical attention if symptoms such as coughing, difficulty breathing, or sore throat persist.
Skin Contact: Remove contaminated clothing; rinse affected skin with soap and water for at least 15 minutes.
Eye Contact: Flush eyes for 15 minutes with plenty of water, keeping eyelids open; remove contact lenses if present and continue rinsing; consult a physician.
Ingestion: Never induce vomiting unless instructed by medical personnel; rinse mouth with water and drink water if victim is conscious; seek immediate medical advice.

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, foam
Unsuitable Extinguishing Media: Direct high-pressure water streams
Flammable Properties: Material itself not highly flammable; may decompose at high temperature releasing ammonia, carbon dioxide
Protection for Firefighters: Wear self-contained breathing apparatus and protective gear; avoid inhalation of decomposition gases
Hazardous Combustion Products: Nitrogen oxides, ammonia, carbon oxides

Accidental Release Measures

Personal Precautions: Use gloves, safety goggles, and dust mask or respirator as needed; ventilate area
Environmental Precautions: Prevent material from reaching storm drains, surface water, or soil
Containment Methods: Sweep up and collect spilled material; avoid dust formation and unnecessary contact
Cleanup Procedures: Place collected material in labeled, sealed containers for disposal; clean affected surface thoroughly with water

Handling and Storage

Safe Handling: Minimize dust generation, avoid skin, eye, and respiratory contact, use only in well-ventilated areas
Safe Storage: Store in a sealed container, in a cool, dry, well-ventilated place away from acids and oxidizers
Incompatibilities: Strong acids, strong oxidizing agents, moisture
Storage Temperature: Store at room temperature

Exposure Controls and Personal Protection

Exposure Limits: No OSHA or ACGIH exposure limits established for guanidine carbonate
Engineering Controls: Use of fume hood or local exhaust ventilation
Personal Protective Equipment: Chemical-resistant gloves, safety goggles, lab coat, dust mask or respirator if dust levels become excessive
Hygiene Measures: Wash hands and face after use, do not eat, drink, or smoke in work area

Physical and Chemical Properties

Appearance: White crystalline powder
Odor: Slight ammonia odor
Odor Threshold: Not determined
pH (1% solution): 11-12
Melting Point: Decomposes above 160°C
Boiling Point: Not applicable
Flash Point: Non-flammable
Evaporation Rate: Not applicable
Solubility in Water: Soluble
Vapor Pressure: Not available
Density: 1.4 g/cm³

Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions
Reactivity: Reacts with strong acids generating carbon dioxide and guanidinium salts
Conditions to Avoid: Heat, moisture, and incompatible substances
Hazardous Decomposition Products: Ammonia, nitrogen oxides, carbon oxides on heating
Polymerization: Not expected under normal conditions

Toxicological Information

Likely Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: LD50 (oral, rat): 1120 mg/kg
Skin Corrosion/Irritation: May cause moderate skin irritation
Serious Eye Damage/Irritation: May cause direct eye irritation
Respiratory Sensitization: Not classified
Germ Cell Mutagenicity: Not classified
Carcinogenic Potential: Not listed by IARC, NTP, OSHA
Other Health Hazards: Long-term exposure not fully studied, but repeated contact can worsen skin or respiratory irritation

Ecological Information

Ecotoxicity: Data limited; toxicity to aquatic species expected to be low to moderate
Persistence and Degradability: May degrade in environmental conditions, though detailed data remain sparse
Bioaccumulation: Not expected to bioaccumulate significantly
Mobility in Soil: Expected to be highly mobile in water due to solubility
Other Adverse Effects: Avoid large discharges into the environment

Disposal Considerations

Waste Disposal: Collect for disposal in accordance with local, regional, and national regulations
Disposal of Containers: Rinse thoroughly, remove labels, and dispose as hazardous waste if contaminated
Precautions: Do not release into drains or environment; avoid dust formation

Transport Information

UN Number: Not regulated for transport
Proper Shipping Name: Not dangerous goods
Transport Hazard Class: None
Packing Group: None
Special Precautions: Protect from moisture and damage during transport; keep in labeled, tightly closed containers

Regulatory Information

TSCA: Listed
EINECS: 209-813-7
REACH Status: Pre-registered
OSHA Hazards: Irritant
SARA 313 Status: Not listed
Other Regulations: Follow workplace health, safety, and environmental regulations that apply to chemical handling and storage