Dimethyl methylphosphonate
CAS: 756-79-6
Category: Organophosphorus Compounds
| Purity | Technical Grade ≥95%, Reagent Grade ≥98%, High-Purity Grade ≥99%, Analytical Standard Grade ≥99.5% ( |
| Molecular Formula | C₃H₉O₃P |
| Molecular Weight | 124.08 |
| Appearance | Colorless to pale yellow clear liquid |
| Packaging | 100g/500g/1kg/5kg/25kg/plastic bottle, HDPE drum, or steel drum with PTFE liner; 200kg/steel drum; bulk IBC tote |
| Testing Indicators | Appearance — Visual inspection; Identification — FTIR (characteristic P=O and P-O-C stretches), ¹H NMR, ¹³C NMR, or ³¹P NMR; Purity — GC-FID (DB-5 or equivalent column) or HPLC; Assay — Titration (acidimetric after hydrolysis) or GC; Water content — Karl Fischer titration; Phosphorus content — ICP-OES or colorimetric method; Refractive index — Refractometry; Density — Hydrometer or digital densitometer; Boiling point — Distillation method; Flash point — Pensky-Martens closed cup; Color — APHA color scale; Acidity (as H⁺ or H₃PO₄) — Acid-base titration; Residual solvents — GC. |
| Storage Notes | Stored in a tightly sealed container in a cool, dry, well-ventilated area, protected from moisture and direct sunlight; away from strong oxidizers, strong acids, strong bases, and heat sources; keep container closed when not in use; ground containers properly to prevent static discharge; non-corrosive to most metals. |
| Lead Time | Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.demeichem.com/config/helpers.php on line 28 days |
Used as a flame retardant additive in plastics, polyurethane foams, polyesters, and epoxy resins; as a chemical intermediate in the synthesis of other organophosphorus compounds (e.g., nerve agent simulants for research); as a ligand in coordination chemistry; in the production of agrochemicals, lubricant additives, and plasticizers; also used as a standard for GC and NMR (¹H, ¹³C, ³¹P) calibration due to its sharp, well-defined signals.