TRIMETHYL PHOSPHATE (TMP)

Trimethyl Phosphate (TMP) is an organophosphate ester used as a solvent, chemical intermediate, and performance additive in industrial formulations, and Trimethyl Phosphate (TMP) is valued for strong polarity, good solvency, and usefulness as a phosphorylating or methylating reagent in synthesis contexts.
Trimethyl Phosphate (TMP) is used in specialty chemical manufacturing, flame-retardant and plasticizer chemistry, lithium battery electrolyte research and selected applications, and extraction or processing systems where a polar, aprotic solvent is needed, and Trimethyl Phosphate (TMP) performance depends on purity, water content, and compatibility with the target process.
Trimethyl Phosphate (TMP) is typically supplied as a clear, colorless liquid with mild odor, and Trimethyl Phosphate (TMP) requires careful handling because organophosphate solvents can cause irritation and must be kept away from incompatible reactive chemicals.

CAS Number: 512-56-1
EC Number: 208-074-2
Molecular Formula: C3H9O4P
Molecular Weight: 140.07 g/mol

Synonyms: Trimethyl Phosphate (TMP), Trimethyl Phosphate, TMP, Phosphoric Acid Trimethyl Ester, Trimethyl Orthophosphate, Phosphoric Tri-methyl Ester, Methyl Phosphate Ester, Trimethyl Phosphate Solvent, Trimethyl Phosphate Reagent, TMP Solvent Grade, TMP High Purity, Trimethyl Orthophosphate Liquid, Trimethyl Phosphate, TMP, Trimethylphosphate, Phosphoric Acid Trimethyl Ester, Trimethyl Ester of Phosphoric Acid, Methyl Phosphate, Phosphoric Acid Methyl Ester, Trimethoxyphosphine Oxide, Trimethoxyphosphoryl, Phosphoryl Trimethoxide, Methyl Phosphoric Ester, Phosphate Trimethyl Ester, O,O,O-Trimethyl Phosphate, Trimethyl Orthophosphate, Phosphoric Acid Tri-methyl Ester, Trimethyl Phosphoric Acid Ester, Trimethyl Phosphate Solvent, TMP Solvent, Trimethyl Phosphate Reagent, TMP Reagent, Industrial Trimethyl Phosphate, Technical Grade Trimethyl Phosphate, High Purity Trimethyl Phosphate, Electronic Grade Trimethyl Phosphate, Battery Grade Trimethyl Phosphate, Flame Retardant Trimethyl Phosphate, Trimethyl Phosphate Flame Retardant, Phosphate Flame Retardant TMP, Organophosphate Trimethyl Phosphate

APPLICATIONS

Trimethyl Phosphate (TMP) is used as a polar aprotic solvent in chemical synthesis to dissolve salts and polar reactants in compatible reactions.
Trimethyl Phosphate (TMP) is incorporated into phosphorylation and methylation chemistry as a reagent or solvent where phosphoryl transfer chemistry is desired.
Trimethyl Phosphate (TMP) is used in specialty intermediate synthesis for pharmaceuticals and agrochemicals in selected applications.

Trimethyl Phosphate (TMP) is used as a solvent and process aid in flame-retardant and plasticizer manufacturing where organophosphate chemistry is involved.
Trimethyl Phosphate (TMP) is incorporated into resin and additive synthesis routes to deliver phosphate functionality into target molecules.
Trimethyl Phosphate (TMP) is used as a laboratory and industrial reagent in organophosphorus chemistry.

Trimethyl Phosphate (TMP) is used in lithium battery electrolyte research and selected formulations as a high-polarity solvent or co-solvent in compatible electrolyte designs.
Trimethyl Phosphate (TMP) is incorporated into electrolyte blends in selected applications to adjust dielectric properties and improve salt dissolution.
Trimethyl Phosphate (TMP) is used in specialty electrochemical systems where phosphate solvent behavior is advantageous.

Trimethyl Phosphate (TMP) is used in extraction and purification processes where selective polar solvency improves separation performance.
Trimethyl Phosphate (TMP) is incorporated into process solvent systems for metal extraction in selected applications where phosphate esters provide selectivity.
Trimethyl Phosphate (TMP) is used in analytical and laboratory extraction procedures where controlled solvency is required.

Trimethyl Phosphate (TMP) is valued because Trimethyl Phosphate (TMP) provides strong polar solvency and useful organophosphate reactivity that supports efficient synthesis and processing in compatible industrial and laboratory applications.

Trimethyl Phosphate (TMP) is used as a solvent in specialty chemical formulations.
Trimethyl Phosphate (TMP) is used as a high-boiling polar solvent in organic synthesis.
Trimethyl Phosphate (TMP) helps dissolve polar and moderately polar chemical intermediates.
Trimethyl Phosphate (TMP) is used as a reaction medium in selected industrial processes.

Trimethyl Phosphate (TMP) is used in pesticide and agrochemical synthesis.
Trimethyl Phosphate (TMP) serves as an intermediate for organophosphorus compounds.
Trimethyl Phosphate (TMP) is used in the production of flame-retardant additives.
Trimethyl Phosphate (TMP) contributes phosphorus functionality to specialty chemical systems.

Trimethyl Phosphate (TMP) is used in lithium battery electrolyte research.
Trimethyl Phosphate (TMP) can function as a flame-retardant solvent component in battery electrolytes.
Trimethyl Phosphate (TMP) is used in electrolyte additive development.
Trimethyl Phosphate (TMP) supports studies focused on safer and less flammable energy-storage systems.

Trimethyl Phosphate (TMP) is used in polymer additive formulations.
Trimethyl Phosphate (TMP) helps improve flame-retardant performance in compatible polymer systems.
Trimethyl Phosphate (TMP) is used in plasticizer development.
Trimethyl Phosphate (TMP) can modify flexibility and processing behavior in selected resin systems.

Trimethyl Phosphate (TMP) is used in textile finishing formulations.
Trimethyl Phosphate (TMP) supports flame-retardant treatment development for fibers and fabrics.
Trimethyl Phosphate (TMP) is used in coating formulations.
Trimethyl Phosphate (TMP) helps improve fire-resistance properties in selected coatings.

Trimethyl Phosphate (TMP) is used in paint and varnish systems.
Trimethyl Phosphate (TMP) can act as a specialty solvent and functional additive.
Trimethyl Phosphate (TMP) is used in adhesive formulations.
Trimethyl Phosphate (TMP) supports compatibility and flame-retardant performance in selected adhesive systems.

Trimethyl Phosphate (TMP) is used in sealant formulations.
Trimethyl Phosphate (TMP) helps adjust solvent balance and functional performance.
Trimethyl Phosphate (TMP) is used in resin processing.
Trimethyl Phosphate (TMP) assists in dissolving or dispersing selected resin components.

Trimethyl Phosphate (TMP) is used in pharmaceutical intermediate synthesis.
Trimethyl Phosphate (TMP) serves as a reagent or solvent in controlled organic reactions.
Trimethyl Phosphate (TMP) is used in fine chemical manufacturing.
Trimethyl Phosphate (TMP) supports production of phosphorus-containing specialty molecules.

Trimethyl Phosphate (TMP) is used in laboratory research.
Trimethyl Phosphate (TMP) is used as a model organophosphate compound in chemical studies.
Trimethyl Phosphate (TMP) is used in spectroscopy and analytical method development.
Trimethyl Phosphate (TMP) helps study phosphate ester behavior and reactivity.

Trimethyl Phosphate (TMP) is used in catalysis research.
Trimethyl Phosphate (TMP) can serve as a ligand-like or coordinating solvent in selected systems.
Trimethyl Phosphate (TMP) is used in metal extraction studies.
Trimethyl Phosphate (TMP) helps investigate interactions between phosphate esters and metal ions.

Trimethyl Phosphate (TMP) is used in electronics chemical formulations.
Trimethyl Phosphate (TMP) can support solvent systems requiring high polarity and low volatility.
Trimethyl Phosphate (TMP) is used in cleaning formulations for specialized industrial surfaces.
Trimethyl Phosphate (TMP) helps dissolve certain organic residues under compatible conditions.

Trimethyl Phosphate (TMP) is used in chemical vapor deposition precursor research.
Trimethyl Phosphate (TMP) can serve as a phosphorus source in selected material-development studies.
Trimethyl Phosphate (TMP) is used in flame-retardant hydraulic fluid research.
Trimethyl Phosphate (TMP) supports the design of phosphorus-containing functional fluids.

Trimethyl Phosphate (TMP) is used in lubricant additive research.
Trimethyl Phosphate (TMP) helps evaluate phosphate ester behavior in specialty fluid systems.
Trimethyl Phosphate (TMP) is used in industrial formulation development where a polar phosphate ester is required.
Trimethyl Phosphate (TMP) supports applications needing solvency, phosphorus functionality, and controlled volatility.

DESCRIPTION

Trimethyl Phosphate (TMP) is the trimethyl ester of phosphoric acid, and Trimethyl Phosphate (TMP) is a polar aprotic liquid with strong solvency for many organic and inorganic species.
Trimethyl Phosphate (TMP) can participate in organophosphorus chemistry as a phosphorylating agent under appropriate conditions, and Trimethyl Phosphate (TMP) is used as a reagent and solvent in specialty synthesis routes.
Trimethyl Phosphate (TMP) is relatively low volatility compared with many common solvents, and this supports controlled processing and reduced evaporation loss in some operations.

Trimethyl Phosphate (TMP) can hydrolyze slowly in the presence of water, and high-purity applications require low water content and tightly controlled storage to maintain specification.
Trimethyl Phosphate (TMP) should be kept away from strong bases, strong nucleophiles, and strong reducing agents unless compatibility is verified, because reactive chemistry can occur under certain conditions.
Trimethyl Phosphate (TMP) should be used according to applicable regulations and good industrial hygiene practices for the target market and facility.

Trimethyl Phosphate (TMP) should be stored in tightly closed containers and protected from moisture ingress when high purity is required.
Trimethyl Phosphate (TMP) should be handled with appropriate PPE to avoid eye and skin contact during bulk handling.
Trimethyl Phosphate (TMP) should be kept away from strong oxidizers and sources of ignition even though it is typically less flammable than many hydrocarbon solvents, because process conditions and impurities can change behavior.

Trimethyl Phosphate (TMP) is a trialkyl phosphate ester.
Trimethyl Phosphate (TMP) is also known as phosphoric acid trimethyl ester.
Trimethyl Phosphate (TMP) is typically supplied as a clear, colorless liquid.
Trimethyl Phosphate (TMP) has a mild characteristic odor.

Trimethyl Phosphate (TMP) has the molecular formula C3H9O4P.
Trimethyl Phosphate (TMP) contains three methoxy groups attached to a phosphate center.
Trimethyl Phosphate (TMP) is a polar organic liquid.
Trimethyl Phosphate (TMP) is miscible or highly compatible with many organic solvents.

Trimethyl Phosphate (TMP) has relatively low volatility compared with many light organic solvents.
Trimethyl Phosphate (TMP) is valued for its solvency and phosphorus content.
Trimethyl Phosphate (TMP) can participate in chemical reactions involving phosphate ester functionality.
Trimethyl Phosphate (TMP) may hydrolyze under strongly acidic or alkaline conditions.

Trimethyl Phosphate (TMP) performance depends on purity, water content, acidity, and application conditions.
Trimethyl Phosphate (TMP) quality may be specified by color, assay, moisture, and acid value.
Trimethyl Phosphate (TMP) should be stored in tightly closed containers.
Trimethyl Phosphate (TMP) should be protected from moisture, heat, and incompatible materials.

Trimethyl Phosphate (TMP) should be handled with suitable ventilation.
Trimethyl Phosphate (TMP) may irritate the eyes, skin, or respiratory tract.
Trimethyl Phosphate (TMP) should be used according to the supplier safety data sheet.
Trimethyl Phosphate (TMP) should be kept away from strong oxidizing agents.

Trimethyl Phosphate (TMP) is selected when a compact polar phosphate ester is needed.
Trimethyl Phosphate (TMP) is useful in chemical synthesis, formulation development, and materials research.
Trimethyl Phosphate (TMP) is valued for combining solvent properties with phosphorus-based functionality.
Trimethyl Phosphate (TMP) is an important specialty chemical in organophosphorus chemistry.

Trimethyl Phosphate (TMP) supports applications requiring controlled solvency, reactivity, and functional additive performance.

PROPERTIES

Chemical Formula: C3H9O4P
Molecular Weight: 140.07 g/mol
Common Name: Trimethyl Phosphate (TMP)
Chemical Type: Organophosphate ester; polar aprotic solvent; reagent/intermediate
Appearance: Clear, colorless liquid
Odor: Mild characteristic odor
Solubility: Miscible with water and many organic solvents
Boiling Point: ~197–198°C (typical)
Melting Point: ~-46°C (typical)
Flash Point: Typically ~100°C (grade dependent; combustible liquid)
Density: ~1.19 g/cm³ (typical at 20°C)
Viscosity: Low to moderate; temperature dependent
Dielectric Constant: High (typical; supports salt dissolution)
Stability: Stable under normal storage; hydrolyzes slowly in moisture; avoid strong bases and reactive chemicals
Storage Temperature: 5–30°C, tightly closed, dry
Shelf Life: Typically 12–36 months in original sealed packaging (supplier dependent)

FIRST AID

Inhalation:
Move to fresh air if vapors or mists are inhaled.
Seek medical attention if respiratory irritation persists.
Avoid breathing aerosols during spraying or heated processing.

Skin Contact:
Wash with soap and water after contact.
Remove contaminated clothing and wash before reuse.
Seek medical advice if irritation develops or persists.

Eye Contact:
Rinse cautiously with water for several minutes.
Remove contact lenses if present and easy to do, then continue rinsing.
Seek medical attention if irritation persists.

Ingestion:
Rinse mouth with water and do not induce vomiting.
Seek medical attention if discomfort occurs or if a significant amount is swallowed.
Never give anything by mouth to an unconscious person.

Note to Physicians:
Treat symptomatically.
No specific antidote is required.
Provide supportive care as needed.

HANDLING AND STORAGE

Handling:
Use appropriate PPE including chemical-resistant gloves and safety glasses for bulk handling.
Avoid prolonged skin contact and avoid splashing into eyes.
Use clean, dry equipment for high-purity applications and minimize moisture exposure.

Ventilation:
Use general ventilation for normal handling.
Use local exhaust if heating, spraying, or mist formation is possible.
Avoid aerosol formation in enclosed spaces without adequate airflow.

Storage:
Store in tightly closed containers in a cool, dry, well-ventilated area.
Protect from moisture ingress to maintain specification and reduce hydrolysis.
Keep away from strong bases, strong oxidizers, and incompatible reactive chemicals.

Spill and Leak Procedures:
Contain spill and absorb with inert material.
Clean residue promptly because liquids can create slip hazards.
Dispose of waste according to local regulations and facility procedures.

Handling Precautions:
Control water content because Trimethyl Phosphate (TMP) purity affects performance in sensitive synthesis and electrolyte applications.
Verify compatibility with reactive chemicals because organophosphate esters can participate in reactions under certain conditions.
Rotate stock using FIFO practices to maintain consistent quality and predictable solvent performance.