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Product Name: Arsenic Standard Solution
Synonyms: Arsenic Reference Solution, Arsenic Calibration Solution
CAS Number: 7440-38-2
Recommended Use: Laboratory calibration, analytical chemistry, environmental testing
Supplier: Laboratory chemical distributor, manufacturer details as stated on container
Emergency Contact: Refer to local emergency hotline, listed on supplier documentation
Classification: Acute Toxicity (Oral, Inhalation, Dermal), Carcinogenicity, Environmental Hazard (Acute), Specific Target Organ Toxicity
Signal Word: Danger
Hazard Statements: Toxic if swallowed, inhaled, or in contact with skin. Causes damage to organs. May cause cancer. Highly toxic to aquatic life with long lasting effects.
Pictograms: Skull and crossbones, Health hazard, Environment
Precautionary Statements: Avoid breathing vapors, wear protective gloves and eye protection, wash hands thoroughly after handling, do not eat or drink while using
Chemical Name: Arsenic (As)
Concentration: Typically ranges 1–1000 mg/L (as specified on label)
Other Ingredients: Diluent such as ultra-pure water, trace amounts of nitric acid or hydrochloric acid for stability
Impurities: None expected beyond stated composition
Inhalation: Move to fresh air immediately, seek medical attention. Oxygen or artificial respiration may be needed.
Ingestion: Rinse mouth well, do not induce vomiting. Get medical help quickly.
Skin Contact: Remove contaminated clothing, wash affected skin thoroughly with soap and water, seek prompt medical attention.
Eye Contact: Rinse eyes cautiously with water for several minutes. Remove contact lenses if present. Immediate medical advice is necessary.
Symptoms: Nausea, vomiting, abdominal pain, diarrhea, weakness, confusion, headache, respiratory distress
Suitable Extinguishing Media: Use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide according to surrounding materials.
Specific Hazards: Toxic metal fumes can develop from thermal decomposition, risk of exposure to arsenic oxide vapor
Protective Equipment: Firefighters need self-contained breathing apparatus, full protective gear
Advice: Remove all persons from danger zone, keep containers cool with water spray if possible, avoid entering areas with concentrated smoke or vapor
Personal Precautions: Ventilate area, evacuate unnecessary personnel, avoid inhalation/contact, use appropriate personal protective equipment
Environmental Precautions: Prevent substance entry into drains, waterways, soils
Methods for Cleaning Up: Absorb with inert material like vermiculite, collect and place in suitable containers for hazardous waste disposal, decontaminate area using approved methods
Response Guidance: Notify emergency responders, follow government regulations for hazardous spills
Handling: Ensure use in a chemical fume hood or well-ventilated area, avoid spills and splashes, handle with care
Storage: Store in original, tightly-closed containers in a secure, cool, dry, well-ventilated location away from direct sunlight, compatible with acids and oxidizers
Incompatibilities: Avoid storage with strong acids or bases, reactive metals, reducing agents
Special Considerations: Label all containers clearly, restrict access to authorized trained staff
Occupational Exposure Limits: OSHA PEL (TWA): 0.01 mg/m³, ACGIH TLV (TWA): 0.01 mg/m³
Engineering Controls: Fume hood required, local exhaust ventilation, keep exposure as low as possible
Personal Protection: Chemical-resistant gloves (nitrile, neoprene), splash-proof goggles or face shield, lab coat, vapor respirator as conditions dictate
Hygiene Measures: Avoid eating, drinking, or smoking in work area; wash hands thoroughly before breaks and after handling
Appearance: Clear, colorless to slightly yellow liquid
Odor: Odorless
pH: Typically acidic (due to stabilizing acid), usually below 2
Melting Point/Freezing Point: Not relevant for aqueous solution form
Boiling Point/Range: Close to water (around 100°C depending on concentration)
Solubility: Completely miscible in water
Density: Approximate to water; precise value noted on product label
Vapor Pressure: Low at room temperature
Other Data: Reacts with strong reducing agents, may form toxic gases if heated or mixed with incompatible substances
Chemical Stability: Stable under recommended storage and handling conditions
Hazardous Reactions: Contact with acids or reactive metals may form toxic arsenic gases
Conditions to Avoid: Heat, direct sunlight, rough handling, freeze/thaw cycles
Incompatible Materials: Strong bases, reducing agents, certain metals (aluminum, zinc)
Decomposition Products: Arsenic oxides and metal fumes under fire or extreme heat
Routes of Exposure: Inhalation, ingestion, skin contact, eye contact
Acute Effects: Poisoning symptoms include headaches, weakness, confusion, abdominal pain, vomiting, respiratory distress
Chronic Effects: Prolonged exposure linked to skin lesions, peripheral neuropathy, increased cancer risk (skin, lung, bladder), cardiovascular and liver effects
LD50/LC50: Oral LD50 (rat): 15–20 mg/kg (for arsenic trioxide); solution toxicity depends on dilution
Carcinogenicity: Classified as Group 1 carcinogen by IARC
Additional Information: No safe level of exposure, risk increases with cumulative contact, occupational guidelines focus on prevention and monitoring
Ecotoxicity: Extremely toxic to aquatic organisms, persistent in water, harmful at low concentrations
Mobility: High in water, can spread rapidly from leaks or spills
Persistence/Degradability: Not readily degradable, persists in sediments
Bioaccumulation: Significant risk, arsenic accumulates in aquatic organisms and travels up food chains
Environmental Effects: Alters microbial communities, harms plants and animals, disrupts ecosystem balance
Disposal Methods: Treat as hazardous waste, use certified disposal contractor, follow national and local regulations
Container Disposal: Rinse vessels thoroughly (if permitted), then treat as contaminated hazardous waste
Precautions: Do not dispose via regular sewage or landfill, prevent entry to water systems
Regulatory Guidance: Obtain advice from environmental authorities for appropriate disposal strategies
UN Number: UN1557 (Arsenic compounds, solid/in solution, n.o.s.); verify for specification
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: II or III (based on concentration and form)
Labeling Requirements: Toxic, environmental hazard placards
Special Precautions for Transport: Secure in upright, sealed containers, restrict access, handle by trained personnel only, emergency response information available during transit
Safety, Health, and Environmental: Subject to OSHA regulations for toxic substances, EPA hazardous waste rules, DOT toxic material transport standards
Global References: Complies with GHS requirements, REACH (EU), WHMIS (Canada), other region-specific legislation
Workplace Controls: Exposure monitoring, health screening for workers, documented training requirements
Labeling: Must show hazards, safety instructions, manufacturer and emergency details, expiration date, traceable lot numbers
