NationMaster - Encyclopedia: DMF

Dimethylformamide
Chemical name	N,N-dimethylformamide
Chemical formula	C₃H₇NO
Molecular mass	73.09 g/mol
Density	0.944 g/ml
Melting point	-61 °C
Boiling point	153 °C
CAS number	68-12-2
SMILES	O=CN(C)C

Dimethylformamide, also known under the names N,N-dimethylformamide and DMF, is a clear, water-miscible liquid and common solvent that is often used in chemical reactions. Pure dimethylformamide is odorless while technical grade or degraded dimethylformamide often has a fishy smell due to dimethylamine. Its name is derived from the fact that it is formamide (the amide of formic acid) with two methyl group substitutions, both of them on the N (nitrogen) atom. IUPAC nomenclature is a systematic way of naming organic chemical compounds. ... A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ... The molecular mass of a substance (less accurately called molecular weight and abbreviated as MW) is the mass of one molecule of that substance, relative to the unified atomic mass unit u (equal to 1/12 the mass of one atom of carbon-12). ... Density (symbol: ρ - Greek: rho) is a measure of mass per unit of volume. ... The melting point of a solid is the temperature at which it changes state from solid to liquid. ... Alternate use: Boiling point Boiling Point, known in Japan as 3-4X Jūgatsu (３－４Ｘ１０月 lit. ... CAS registry numbers are unique numerical identifiers for chemical compounds, polymers, biological sequences, mixtures and alloys. ... The simplified molecular input line entry specification or SMILES is a specification for unambiguously describing the structure of chemical molecules using short ASCII alpha-numeric strings. ... This article describes water from a scientific and technical perspective. ... A solvent is a liquid that dissolves a solid, liquid, or gaseous solute, resulting in a solution. ... This article is in need of attention. ... Safety (MSDS) data for dimethylamine General Synonyms: N-methyl-methanamine Molecular formula: C2H7N CAS No: 124-40-3 EINECS No: 204-697-4 EC index no: 612-001-00-9 Physical data Appearance: colourless gas with strong ammonia-like smell Melting point: -92 C Boiling point: 7. ... Formamide is an amide derived from formic acid. ... In chemistry, the term amide has several meanings. ... Formic acid (systematically called methanoic acid) is the simplest carboxylic acid. ... In chemistry a methyl-group is a hydrophobic Alkyl functional group which is derived from methane (CH4). ... General Name, Symbol, Number Nitrogen, N, 7 Chemical series nonmetals Group, Period, Block 15 (VA), 2, p Density 1. ... Properties For alternative meanings see atom (disambiguation). ...

Dimethylformamide is a polar (hydrophilic) aprotic solvent with a high boiling point. It facilitates the S_N2 reaction mechanism. Dimethylformamide is synthesized from formic acid and dimethylamine. Dimethylformamide is not stable in the presence of strong bases like sodium hydroxide or strong acids like hydrochloric acid or sulfuric acid and is hydrolyzed back into formic acid and dimethylamine, especially at elevated temperatures. A commonly-used example of a polar compound is water (H2O). ... The adjective hydrophilic describes something that likes water (from Greek hydros = water; philos = friend). ... In chemistry, nucleophilic subsitution is a type of chemical reaction in which one nucleophile (electron donor) replaces another as a covalent substituent of some atom. ... Sodium hydroxide (NaOH), also known as caustic soda or lye in North America, is a caustic metallic base used in industry (mostly as a strong chemical base) in the manufacture of paper, textiles, and detergents. ... The chemical substance hydrochloric acid is the aqueous (water-based) solution of hydrogen chloride (HCl) gas. ... Sulfuric acid (British English: sulphuric acid), H2SO4, is a strong mineral acid. ... Hydrolysis is a chemical process in which a molecule is cleaved into two parts by the addition of a molecule of water. ...

Mass. Division of Marine Fisheries: Publications - Informational (6901 words)
	This DMF research project is designed to: (1) consolidate information derived by field samples with available data from published literature, and (2) build a bioenergetics model for the entire striped bass population.
	DMF recognized fishermen's concerns about the need for floating line in this area that is primarily rocky habitat and the arguments that traps fitted with sinking lines between traps will become snagged and not retrievable.
	DMF will consider adopting rules complementary to the federal rules for those areas adjacent to Critical Habitat, when they are enacted later this year.

N,N-DIMETHYLFORMAMIDE (DMF) - (Organic Method #66) (3749 words)
	This is the amount of DMF which, when spiked on the sampling device, will allow recovery of an amount approximately equivalent to the detection limit of the analytical procedure (0.16 ng/injection or 0.40 µg/sample).
	Breakthrough is defined as the point at which the concentration of DMF in the atmosphere which has passed through the sorbent tube is 5% of the upstream concentration of the test atmosphere.
	DMF was introduced into the vapor generation system through a heated inlet at a rate of 9.36 mg/min.

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