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| CAS number | 105-58-8 |
| Molecular formula | C5H10O3 |
| Product name | Diethyl carbonate |
| Molecular Structure |  |
Appearance：colourless liquid with a mild odour
Density：0.975
Boiling Point：126-128ºC
Melting Point：-43ºC
Flash Point：33ºC
Refractive Index：1.383-1.385
Water Solubility：Negligible
Stability：Stable. Flammable. Incompatible with strong acids, strong bases, reducing agents, oxidizing agents. Protect from moisture.
Storage Condition：Flammables area
Vapor Density：4.1 (vs air)
Vapor Pressure：10 mm Hg ( 23.8 °C)
CAS NO: 105-58-8
N,N-Dimethylpiperazine (DMP) is an organic compound with a chemical formula of C5H12N2. It is a colorless, hygroscopic liquid with a slight amine-like odor. It is miscible with water and most common organic solvents. DMP is mainly used as a monomer in the synthesis of polymers and amines, often used in coatings, adhesives, and cross-linked epoxy and urethane resins. In addition, DMP can also be used in cosmetic products as preservatives and humectants, and in the oil field as a demulsifying agent.
DMP is composed of dimethylpiperazine molecules, each of which has two methyl groups and one nitrogen atom attached to a piperazine ring. The molecular weight of DMP is 104.16 g/mol, and its melting point is 10 °C. It decomposes at 121 °C and has a flash point of 90-120°F. DMP is an flammable compound and may cause irritation to skin and eyes. Ingestion of the product may cause nausea, vomiting and other digestive disorders.
DMP is synthesized by the nucleophilic displacement reaction between piperazine and a halogen oxide, usually bromine oxide, but also chloroform or iodine oxide. The reaction is done in either a single-step or a two-step process. The two-step process involves an intermediate step in which the halogen oxide reacts with the base piperazine to form a piperazine halide. The halide then reacts with another molecule of piperazine to produce the final product.
DMP is used as an intermediate in the synthesis of a wide range of compounds, including amines and polymers. It is also used as a catalyst in the production of paint, adhesives, coatings and lubricants. DMP is also used as a preservative and humectant in cosmetics and personal care products. In addition, DMP can also be used as a demulsifying agent in the oil field for the separation of oil and water in drilling muds.
