Description

Trimethyl Phosphate is a versatile organophosphorus compound widely used as a key intermediate and solvent in advanced chemical synthesis. Its primary value lies in its role as a methylating agent and flame retardant precursor, offering high reactivity and selectivity for demanding industrial processes. This product is essential for manufacturers in the agrochemical, pharmaceutical, and specialty polymer industries seeking reliable, high-purity raw materials.

Application

• Chemical Intermediate: Acts as a crucial building block in the synthesis of organophosphate pesticides, herbicides, and other agrochemicals.
• Methylating Agent: Used in organic synthesis to introduce methyl groups into target molecules under controlled conditions.
• Flame Retardant Precursor: Serves as a starting material for the production of more complex phosphate ester flame retardants used in plastics and textiles.
• Solvent & Reaction Medium: Employed as a polar aprotic solvent for various organic reactions and extractions.
• Pharmaceutical Synthesis: Utilized in the manufacture of certain active pharmaceutical ingredients (APIs) and nucleotide analogs.
• Gasoline Additive: Functions as an anti-knock agent and octane booster in specialized fuel formulations.
• Plasticizer & Stabilizer: Imparts specific properties to polymers and acts as a stabilizer in certain resin systems.

Basic Information

Product Name	Trimethyl Phosphate
CAS No.	512-56-1
Molecular Formula	C3H9O4P
Molecular Weight	140.08 g/mol
Synonyms	Phosphoric Acid Trimethyl Ester; Methyl Phosphate (Tri-); TMP; Trimethoxyphosphine Oxide; Trimethyl Orthophosphate; O,O,O-Trimethyl Phosphate; NSC 2661
EINECS	208-144-8

Quality Control

Our Trimethyl Phosphate is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical testing, including gas chromatography (GC) and nuclear magnetic resonance (NMR) spectroscopy, to verify identity and assay. A Certificate of Analysis (COA) detailing purity, water content, and key impurity profiles is supplied with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be kept under an inert atmosphere (e.g., nitrogen) after opening to prevent degradation. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Acidity (as H3PO4)	≤ 0.1%
Density (20°C)	1.197 - 1.215 g/mL
Refractive Index (n20D)	1.395 - 1.399

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.