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Chemical name: Ethylenediaminetetraacetic acid ferric salt
Common names: Ferric EDTA, Iron(III) EDTA
CAS number: 15708-41-5
Physical form: Usually comes as a reddish-brown to yellow solid or powder
Odor: No strong or distinctive smell
Typical uses: Often turns up in micronutrient fertilizers, cleaning products, and as a chelating agent in industrial water treatment and labs
Main risks: Can cause mild to moderate irritation of eyes, skin, and respiratory system if particles get airborne or if mixed in solution
Physical hazards: Inhalation of dust isn’t pleasant and eating it is a bad idea, but it won’t explode or catch fire easily
Environmental risk: Spills near waterways shouldn’t go ignored; ferric EDTA, like other metal-EDTA compounds, may help metals travel through soil or water
Health signals: Eyes start to sting, throat feels scratchy, or skin itches with enough exposure
GHS labels: Eye irritant, skin irritant
Main component: Ferric salt of ethylenediaminetetraacetic acid, often >97% in industrial grade
Impurities: Sometimes carries small amounts of sodium, potassium, or unreacted acids from manufacturing
Elemental iron content: Usually sits close to 13%, bound into the EDTA complex
Other ingredients: No added fillers or cutting agents reported in the typical supply
Eye contact: Rinse well with water for at least ten minutes; flushing takes priority
Skin contact: Wash area with soap and water; remove contaminated clothing
Inhalation: Move outdoors so the air is clear and take deep breaths; get help if coughing or trouble breathing doesn’t quit
Ingestion: Rinse mouth if feeling well, then get medical advice; never force vomiting unless the doctor insists
Exposure advice: Have someone keep an eye on the affected person and don’t let symptoms slide
Flammability: Not known for burning, but powders and organic material could add fuel in a fire
Suitable extinguishing methods: Dry chemical, CO₂, water spray, or foam, depending on surroundings
Specific hazards: Combustion may send off irritating fumes — iron oxides and nitrogen oxides may become concerns
Protective gear: Firefighters should go for full gear with breathing apparatus if smoke or fumes are thick
Other advice: Block runoff to drains and water sources to cut down the environmental punch of a fire
Personal care: Wear gloves, goggles, and a dust mask before cleaning any mess to avoid direct exposure
Spill clean-up: Scoop up the powder or soak up spills with inert absorbent materials; sweep gently to avoid making airborne dust
Ventilation: Air the space out, especially in closed rooms
Preventing spread: Don’t let spills get near drains or fresh water; keep away from grassy areas or garden beds
Disposal tips: Store the waste in marked, sealed containers before giving it to responsible disposal agents
Handling routine: Pour and mix slowly to keep dust down; don safety glasses and gloves whenever practical
Avoid contact: Keep off the face, especially eyes and mouth
Labeling: Mark containers clearly so no one mistakes the product for something else
Storage: Store dry, cool, and away from direct sunlight; seal containers tight after every use
Separation from: Don’t store near acids or strong oxidizers; keep away from food, drink, and animal feed
Tech controls: Use local exhaust ventilation when mixing powders or dumping large amounts
Respiratory gear: Dust-filter masks or N95-type respirators add a safety cushion
Hand protection: Go for chemical-resistant gloves, not bare hands
Eye and face: Safety goggles with side shields; a face shield for extra busy procedures
Clothing: Long sleeves and pants dedicated to work, washed after handling
Hygiene: Wash up before lunch, after shifts, and whenever skin comes into contact with the powder or suspensions
Appearance: Off-yellow, orange, or reddish-brown crystalline powder
Odor: No major odor
pH (in solution): Most solutions sit on the acidic to slightly neutral side
Solubility: Dissolves in water, doesn’t mix with most oils
Melting point: Decomposes before melting so don’t heat it past 200°C
Vapor pressure: Negligible at room temperature
Density: Usually about 2 g/cm³, but changes with humidity or dilution
Chemical stability: Solid in dry, closed containers, out of sunlight
Reactivity: Acts as a chelator, grabbing onto a wide range of metals. Reacts with strong acids, big oxidizers
Hazardous byproducts: May release tiny amounts of nitrogen oxides if broken down by strong heat or mixed with the wrong chemicals
Incompatibilities: Mixing with acids or bleach can create unstable or hazardous products
Routes of entry: Eyes, skin, mouth, or nose (mainly as a dust)
Short-term effects: Causes minor eye and skin irritation, mild cough or sore throat if breathed
Long-term effects: Animal studies suggest low chronic toxicity. Regular, large exposures may lead to digestive upset or anemia in theory, but no strong proof in casual contact
Carcinogenicity: Not classified as a human cancer risk by trusted agencies
Allergy risk: Sensitization is rare
Fate in environment: Readily moves through soil and water; can stick around in rivers or wetlands
Persistence and breakdown: Does not degrade quickly in the environment
Bioaccumulation: Stays as a mobile complex; iron stays in the EDTA grip, less likely to build up in organisms compared to some metals
Impact on fish and bugs: Moderate risk if dumped in large amounts—can upset metal balances for aquatic life
Precautionary note: Avoid letting building runoff or washed-down spills reach city drains, waterways, or storm sewers
Waste handling: Sweep up solid waste and collect leftover liquid mixtures for proper disposal; don’t pour down the sink or storm drains
Preferred disposal: Send to licensed chemical waste handlers
Container disposal: Rinse empty containers before recycling or landfilling
Regulation checks: Follow local, state, and national chemical waste laws to avoid contaminating soil or surface water
Packing: Ship in sealed drums or bags lined to keep powder inside
Transport hazard class: Not listed as a dangerous good under most transport codes
Labeling: Use standard chemical name; warning labels for eye and skin irritants help alert handlers
Storage in transit: Shield from rain, heat, and physical damage on the road or rail
Major rules: Subject to workplace safety laws covering chemical irritants
Environmental rules: Not designated as a hazardous waste under federal EPA regulations but flagged for precaution under several state and regional rules
Worker right-to-know: Standard chemical hazard communication rules ask for up-to-date labels and easy access to safety data
International codes: No bans in major markets, but strict limits can show up near drinking water or sensitive habitats
