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Trilon B is an established commercial chelating-agent designation for products based on tetrasodium ethylenediaminetetraacetate, commonly called tetrasodium EDTA.
Trilon B belongs to the aminopolycarboxylate family and is supplied in powder and aqueous liquid grades with different active contents and handling characteristics.
Trilon B controls dissolved metal ions in detergents, industrial cleaners, metal finishing, textile processing, and other aqueous industrial systems.
CAS Number: 64-02-8, tetrasodium EDTA active ingredient
EC Number: 200-573-9, tetrasodium EDTA active ingredient
Molecular Formula: C₁₀H₁₂N₂Na₄O₈, anhydrous active ingredient
Molecular Weight: 380.17 g/mol, anhydrous active ingredient
Commercial Composition: Grade dependent; powder contains water and process-related constituents, while the standard liquid grade is approximately 40% aqueous tetrasodium EDTA.
Commercial Product Molecular Weight: Not applicable as a single value to the complete supplied grade.
Synonyms: Tetrasodium EDTA, EDTA tetrasodium salt, Tetrasodium ethylenediaminetetraacetate, Ethylenediaminetetraacetic acid tetrasodium salt, Tetrasodium edetate, Edetic acid tetrasodium salt, Edetate sodium, Sodium edetate, Na₄EDTA, Tetrasodium ethylenedinitrilotetraacetate, Ethylenedinitrilotetraacetic acid tetrasodium salt, Ethylenebis(iminodiacetic acid) tetrasodium salt, Tetrasodium ethylenediamine-N,N,N′,N′-tetraacetate, N,N′-1,2-Ethanediylbis[N-(carboxymethyl)glycine] tetrasodium salt, Glycine N,N′-1,2-ethanediylbis[N-(carboxymethyl)- tetrasodium salt, Acetic acid (ethylenedinitrilo)tetra- tetrasodium salt, Tetrasodium 2,2′,2″,2‴-(ethane-1,2-diyldinitrilo)tetraacetate, CAS 64-02-8, EC 200-573-9, PubChem CID 6144, UNII MP1J8420LU, KEGG D03946, NCI Thesaurus C76598, Nikkaji J8.622C, InChIKey UEUXEKPTXMALOB-UHFFFAOYSA-J, EDTA-based chelating agent, Aminopolycarboxylate sequestrant, Hardness-ion complexing agent, Metal-ion sequestering agent, Alkaline EDTA chelating agent
APPLICATIONS
Trilon B functions as a chelating builder in household laundry detergents and other cleaning formulations.
Trilon B binds calcium and magnesium ions that can interfere with surfactant performance and contribute to deposits.
Additionally, Trilon B helps reduce hard-water residues by keeping susceptible metal ions in soluble complexes.
Trilon B supports detergent efficiency when the selected grade and concentration are matched to the formulation and water conditions.
Trilon B strengthens metal-ion control in industrial and institutional cleaners, including suitable degreasing formulations.
Trilon B sequesters metal ions that can interfere with soil removal and formulation performance.
Moreover, Trilon B liquid provides an aqueous source of chelating activity for incorporation into liquid cleaning systems.
Trilon B contributes a complementary complexing function alongside the surfactants, alkaline builders, and other ingredients selected for the cleaning task.
Trilon B serves as a complexing additive in selected electroplating and metal-finishing baths.
Trilon B coordinates dissolved metal ions and modifies the balance between free metal ions and their complexes.
In addition, Trilon B supports formulations that depend on controlled metal availability during processing.
Trilon B industrial powder is appropriate where its documented process-related impurities, including small amounts of sodium nitrilotriacetate, can be tolerated.
Trilon B controls interfering metal ions during textile scouring, bleaching, dyeing, and finishing.
Trilon B helps protect susceptible dyes from metal-related shade changes.
Additionally, Trilon B can reduce metal-catalyzed deterioration of compatible fluorescent whitening agents.
Trilon B selection depends on the fiber, dye system, treatment conditions, and competing chemicals present in the process liquor.
Trilon B supports selected pulp and paper operations requiring control of dissolved metal ions.
Trilon B helps reduce metal-catalyzed brightness reversion in suitable bleaching systems.
Moreover, Trilon B can protect susceptible dyes from precipitation caused by metal contamination.
Trilon B also contributes chelating activity to appropriately designed equipment-descaling treatments within paper-processing operations.
Trilon B participates in selected industrial water-treatment programs for managing hardness and deposits.
Trilon B complexes calcium and magnesium in appropriately designed boiler-feedwater, cooling-water, and process-water treatments.
In addition, Trilon B can help reduce spotting and staining associated with metal ions in water used for washing operations.
Trilon B requires assessment of operating conditions and equipment compatibility before incorporation into a water-treatment program.
Trilon B provides tetrasodium EDTA chelating activity in suitable personal-care formulations when the exact commercial grade is qualified for that use.
Trilon B can support metal-ion control in soaps, shampoos, cleansers, and selected skin-care preparations.
Additionally, Trilon B helps formulation developers manage unwanted interactions involving polyvalent metal ions.
Trilon B suitability for cosmetics depends on impurity specifications, concentration, finished-formulation safety, and applicable regulatory requirements.
Trilon B has applications as a metal-ion complexing ingredient in selected paints, coatings, and printing inks.
Trilon B contributes to control of dissolved metal contamination in compatible aqueous formulations.
Moreover, Trilon B must be evaluated against pigments, binders, and other formulation components because metal binding can alter their interactions.
Trilon B performs a formulation-specific chelating role, with performance established for the complete coating or ink system.
DESCRIPTION
Trilon B contains tetrasodium EDTA as the principal chelating ingredient, with four sodium counterions associated with the EDTA anion.
Trilon B derives its complexing ability from four carboxylate groups and two amine nitrogen donor sites.
Trilon B generally forms metal complexes with a one-to-one ligand-to-metal ratio, although binding strength varies with the metal and solution conditions.
Moreover, Trilon B must be distinguished from EDTA free acid and disodium EDTA, which have different neutralization states and physical properties.
Trilon B powder is typically slightly yellowish, while Trilon B liquid is normally a clear, yellowish aqueous solution.
Trilon B standard powder has a representative active content of approximately 87% when expressed as anhydrous tetrasodium EDTA.
Additionally, Trilon B standard liquid has a representative active content of approximately 40% on the same basis.
Trilon B active-content figures describe commercial grades and should not be interpreted as universal specifications for pure tetrasodium EDTA.
Trilon B dissolves readily in water and produces alkaline aqueous solutions.
Trilon B powder absorbs atmospheric moisture, making tightly closed packaging important for maintaining handling quality.
In addition, Trilon B liquid viscosity and physical stability depend on temperature and grade composition.
Trilon B liquid can develop precipitation under unsuitable cold-storage conditions, so storage limits should follow the exact supplied grade.
Trilon B commercial composition can include water, residual alkalinity, sodium nitrilotriacetate, and other process-related constituents.
Trilon B specifications therefore require attention to active assay, analytical basis, impurity limits, and physical form.
Moreover, Trilon B industrial grades do not automatically satisfy requirements for pharmaceutical, cosmetic, food, or medical applications.
Trilon B impurities must be considered individually when assessing suitability because their regulatory and toxicological characteristics can differ from those of tetrasodium EDTA.
Trilon B powder can cause serious eye damage and is classified in published grade documentation as harmful if swallowed or inhaled.
Trilon B dust or mist exposure can present additional respiratory hazards, with classification depending on form and jurisdiction.
Additionally, Trilon B contains EDTA chemistry that is not readily biodegradable under standard screening conditions.
Trilon B metal-binding behavior requires attention during wastewater treatment because dissolved complexes can affect metal removal and environmental mobility.
PROPERTIES
Product Name: Trilon B
Chemical Identity: Commercial tetrasodium EDTA-based chelating agent
Active Ingredient: Tetrasodium ethylenediaminetetraacetate
Chemical Family: Aminopolycarboxylate salts
Functional Class: Chelating and sequestering agent
Active-Ingredient CAS Number: 64-02-8
Active-Ingredient EC Number: 200-573-9
Active-Ingredient Molecular Formula: C₁₀H₁₂N₂Na₄O₈
Active-Ingredient Molecular Weight: 380.17 g/mol
Commercial Product Molecular Formula: No single formula describes all powder and liquid grades
Commercial Product Molecular Weight: Not applicable to the complete supplied grade
Active-Ingredient PubChem CID: 6144
Active-Ingredient UNII: MP1J8420LU
INCI Name: Tetrasodium EDTA
Principal Chelating Sites: Four carboxylate groups and two amine nitrogen donors
Typical Metal-Complex Stoichiometry: One EDTA ligand per metal ion; metal and conditions dependent
Commercial Forms: Powder and aqueous solution
Representative Powder Appearance: Slightly yellowish powder
Representative Liquid Appearance: Clear, yellowish liquid
Representative Powder Active Content: Approximately 87%, expressed as anhydrous tetrasodium EDTA
Representative Liquid Active Content: Approximately 40%, expressed as anhydrous tetrasodium EDTA
Representative Powder Bulk Density: Approximately 690 kg/m³
Representative Liquid Density: Approximately 1.31 g/cm³ at 20°C
Representative pH: Approximately 11.5 for a 1% preparation in distilled water at 23°C
Water Solubility: Powder readily soluble; standard liquid grade dilutable with water
Melting Behavior: Powder exhibits dehydration and decomposition rather than a universally applicable clean melting point
Boiling Behavior: Grade dependent; water evaporation governs initial heating behavior of aqueous solutions
Volatility: Low volatility of the tetrasodium EDTA active ingredient
Purity and Impurity Profile: Grade dependent; active assay differs from total solids and hydrate-based purity
Primary Industrial Functions: Metal-ion sequestration, hardness control, and formulation stabilization
Biodegradability: EDTA active ingredient is not readily biodegradable in standard screening tests
Representative Powder GHS Classification: Acute toxicity Category 4, oral and inhalation; serious eye damage Category 1; specific target organ toxicity from repeated inhalation exposure Category 2
Representative Powder Hazard Statements: H302, H332, H318, and H373, respiratory system through repeated or prolonged inhalation
Representative Powder Signal Word: Danger
Representative Liquid Hazards: Published grade documentation includes corrosivity to metals, eye irritation, harmful inhalation of mist, and repeated-exposure respiratory hazards
Classification Control: Current regional supplier SDS for the exact supplied grade
Powder Dust Hazard: Dust explosion possible under suitable conditions
Material Compatibility Concern: Alkaline liquid can corrode aluminum and aluminum alloys
Powder Transport Status: Not classified as dangerous goods under ADR/RID, IMDG, and IATA in published grade documentation
Powder UN Number, Transport Class, and Packing Group: Not assigned for the documented non-dangerous-goods grade
Representative Liquid UN Number: UN 3267 under documented IMDG and IATA classifications
Representative Liquid Proper Shipping Name: Corrosive liquid, basic, organic, n.o.s.
Representative Liquid Transport Class: 8
Representative Liquid Packing Group: III
Transport Qualification: Confirm classification for the exact grade, jurisdiction, packaging, and transport mode
Storage Conditions: Cool storage in tightly closed compatible containers; protect powder from moisture
Shelf Life: Grade, purity, packaging, storage conditions, and manufacturer dependent
Regulatory Suitability: Application and grade dependent; no universal food, pharmaceutical, cosmetic, or medical qualification
FIRST AID
Inhalation:
Move the affected person to fresh air and keep comfortable for breathing.
Seek medical attention after significant dust or mist exposure, or if coughing, breathing difficulty, or other symptoms occur.
Emergency assistance is required for severe breathing difficulty.
Skin Contact:
Remove contaminated clothing and rinse exposed skin thoroughly with plenty of water.
Wash carefully and obtain medical attention if irritation persists or substantial contamination occurred.
Clean contaminated clothing before reuse.
Eye Contact:
Immediately rinse with clean running water for at least 15 minutes, holding the eyelids open.
Remove contact lenses when present and easy to remove.
Obtain urgent medical attention following powder exposure or contact with a grade classified for serious eye damage.
Ingestion:
Rinse the mouth with water.
Do not induce vomiting.
Contact a poison center or physician promptly, and never give anything by mouth to an unconscious person.
Note to Physicians:
Treat symptomatically and assess the severity of eye injury and respiratory exposure.
Provide the clinician with the current SDS and identify whether the exposure involved powder or liquid concentrate.
HANDLING AND STORAGE
Handling:
Avoid inhalation of powder dust or liquid mist and prevent eye and skin contact.
Minimize dust generation during powder transfer and splashing during liquid handling.
Maintain good workplace hygiene and wash thoroughly after handling.
Engineering Controls:
Use enclosed transfer and local exhaust where dust or mist can be generated.
Keep emergency eyewash and washing facilities accessible.
Design liquid-transfer operations to limit spray and aerosol formation.
Personal Protection:
Wear chemical safety goggles, compatible chemical-resistant gloves, and protective clothing.
Add a face shield where liquid splashing is possible.
Select protective equipment for the exact concentration, task, and exposure conditions.
Respiratory Protection:
Use appropriately selected particulate or mist respiratory protection when engineering controls cannot adequately control exposure.
Selection, fit testing, and maintenance should follow the workplace respiratory-protection program.
Emergency response requires protection appropriate to the actual atmosphere.
Fire and Dust Control:
Prevent powder accumulation and unnecessary dispersion of fine dust.
Control ignition sources and static discharge where the handling assessment identifies a combustible-dust risk.
Use suitable dust-collection equipment and avoid compressed-air cleaning.
Storage:
Keep powder containers tightly closed in a cool, dry location and reseal promptly after use.
Store liquid grades in closed, compatible containers within their specified temperature range.
Protect liquid grades from cold conditions that can cause precipitation.
Follow the manufacturer’s instructions for managing any precipitation or change in physical condition.
Material Compatibility:
Use approved plastic or suitably selected stainless-steel equipment for liquid storage and transfer.
Avoid aluminum and aluminum alloys unless compatibility has been specifically established.
Assess metal compatibility under actual concentration, temperature, and exposure conditions.
Keep separated from strong oxidizing agents.
Spill and Leak Procedures:
Restrict access and use appropriate protective equipment.
Collect powder carefully without raising dust, using equipment suitable for the assessed dust hazard.
Contain liquid spills with compatible inert absorbent and transfer residues to suitable containers.
Prevent spilled liquid from contacting susceptible metal surfaces.
Environmental Precautions:
Prevent uncontrolled discharge to drains, soil, groundwater, and surface water.
Collect contaminated cleaning water and firefighting runoff.
Consider complexed metals and other process contaminants when selecting wastewater treatment and disposal methods.
Fire Response:
Use extinguishing media appropriate to the surrounding fire and the exact grade SDS.
Avoid dispersing powder during firefighting.
Firefighters should wear self-contained breathing apparatus because fire or decomposition can release hazardous fumes.
Waste Disposal:
Dispose of unused material, contaminated absorbent, and affected packaging through authorized waste-management arrangements.
Determine waste classification from the actual composition, including metals acquired during use.
Follow applicable local, regional, and national disposal requirements.
