Organic compoundOrganic compounds are a subclass of chemical compounds of carbon. Little consensus exists among chemists on the exact definition of organic compound; the only universally accepted definition is the quasi-tautological "organic compounds are the subject matter of organic chemistry". Generally, any large chemical compound containing a carbon–hydrogen or carbon–carbon bond is accepted as an organic compound.
UltravioletUltraviolet radiation (UV; sometimes called ultraviolet light) is electromagnetic radiation of wavelengths of 100–400 nanometers, shorter than that of visible light, but longer than vacuum ultraviolet and extreme ultraviolet (radiation bands that overlap UV but share some properties with soft X-rays). UV radiation is present in sunlight and constitutes about 10% of the total electromagnetic radiation output from the Sun.
Carbon tetrachlorideCarbon compoundCarbon tetrachlorideNames Preferred IUPAC nameTetrachloromethaneOther names Benzinoformcarbon(IV) chloride carbon tetCarboneum Tetrachloratum / Carbonei tetrachloridumCarboneum Chloratum / Carbonei chlorurum chloride of carbonFreon-10Halon-104 methane tetrachloride methyl tetrachloride Necatorina perchloromethaneRefrigerant-10Tetrachloretum CarbonicumTetrachlorocarbon TetraformTetrasolIdentifiers CAS Number56-23-53D model (JSmol)Interactive imageAbbreviations CTC, TCM, PCM, R-10 Beilstein Reference1098295 ChEBICHEBI:27385ChEMBLChEMBL44814ChemSpider5730ECHA InfoCard100.000.239EC Number200-262-8Gmelin Reference2347 KEGGC07561PubChemCID5943RTECS numberFG4900000UNIICL2T97X0V0UN number1846 CompTox Dashboard(EPA)DTXSID8020250InChIInChI=1S/CCl4/c2-1(3,4)5Key: VZGDMQKNWNREIO-UHFFFAOYSA-NInChI=1/CCl4/c2-1(3,4)5Key: VZGDMQKNWNREIO-UHFFFAOYAVSMILESClC(Cl)(Cl)ClProperties Chemical formulaCCl4Molar mass153.81 g·mol Appearance Colourless liquid Odorchloroform-like odor Density1.5867 g·cm (liquid)1.831 g·cm at −186 °C (solid)1.809 g·cm at −80 °C (solid)Melting point−22.92 °C (−9.26 °F; 250.23 K) Boiling point76.72 °C (170.10 °F; 349.87 K) Solubility in water0.097 g/100 mL (0 °C)0.081 g/100 mL (25 °C)SolubilitySoluble in alcohol, ether, chloroform, benzene, naphtha, CS2, formic acidlog P2.64 Vapor pressure11.94 kPa at 20 °C Henry's lawconstant (kH)2.76×10 atm·m/mol Magnetic susceptibility (χ)−66.60×10 cm/mol Thermal conductivity0.1036 W/m·K (300 K) Refractive index (nD)1.4607 Viscosity0.86 mPa·s Dipole moment0 D Structure Crystal structureMonoclinicCoordination geometryTetragonal Molecular shapeTetrahedralDipole moment0 D Thermochemistry Heat capacity(C)132.6 J/mol·K Std molarentropy(S298)214.39 J/mol·K Std enthalpy offormation(ΔfH298)−95.6 kJ/mol Gibbs free energy(ΔfG)−87.34 kJ/mol Hazards Occupational safety and health (OHS/OSH): Main hazardsHighly toxic to the liver and kidneys, suspected carcinogen, harmful to the ozone layerGHS labelling: PictogramsSignal wordDangerHazard statementsH301, H302, H311, H331, H351, H372, H412, H420Precautionary statementsP201, P202, P260, P264, P270, P271, P273, P280, P281, P301+P310, P302+P352, P304+P340, P308+P313, P311, P312, P314, P321, P322, P330, P361, P363, P403+P233, P405, P501, P502NFPA 704 (fire diamond) 300Flash pointnon-flammable Lethal dose or concentration (LD, LC): LD50 (median dose)7749 mg/kg (oral, mouse); 5760 mg/kg (oral, rabbit); 2350 mg/kg (oral, rat) LC50 (median concentration)5400 ppm (mammal)8000 ppm (rat, 4 hr)9526 ppm (mouse, 8 hr)LCLo (lowest published)1000 ppm (human)20,000 ppm (guinea pig, 2 hr)38,110 ppm (cat, 2 hr)50,000 ppm (human, 5 min)14,620 ppm (dog, 8 hr)NIOSH (US health exposure limits): PEL (Permissible)TWA 10 ppm C 25 ppm 200 ppm (5-minute maximum peak in any 4 hours) REL (Recommended)Ca ST 2 ppm (12.6 mg/m) [60-minute] IDLH (Immediate danger)200 ppm Safety data sheet (SDS) ICSC 0024Related compounds Other anionsCarbon tetrafluorideCarbon tetrabromideCarbon tetraiodideOther cationsSilicon tetrachlorideGermanium tetrachlorideTin tetrachlorideLead tetrachlorideRelated chloromethanesChloromethaneDichloromethaneTrichloromethaneSupplementary data page Carbon tetrachloride (data page)Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).Y verify ( ?)
DiphenylmethaneDiphenylmethane is an organic compound with the formula(C6H5)2CH2 (often abbreviated CH2Ph2). The compound consists of methane wherein two hydrogen atoms are replaced by two phenyl groups. It is a white solid. Diphenylmethane is a common skeleton in organic chemistry. The diphenylmethyl group is also known as benzhydryl.
KetoneIn organic chemistry, a ketone is an organic compound with the structure R−C(=O)−R', where R and R' can be a variety of carbon-containing substituents. Ketones contain a carbonyl group−C(=O)− (a carbon-oxygen double bond C=O). A ketone derived from an alkane is an alkanone. The simplest ketone is acetone (where R and R' are methyl), with the formula (CH3)2CO. Many ketones are of great importance in biology and industry.
PhotoinitiatorIn chemistry, a photoinitiator is a molecule that creates reactive species (free radicals, cations or anions) when exposed to radiation (UV or visible). Synthetic photoinitiators are key components in photopolymers (for example, photo-curable coatings, adhesives and dental restoratives). Some small molecules in the atmosphere can also act as photoinitiators by decomposing to give free radicals (in photochemical smog).
PrintingProcess for reproducing text and images From top to bottom, left to right: cylinder seal of a scene, block used for woodblock printing, movable type, printing press, lithograph press, offset press used for modern lithographic printing, linotype machine for hot metal typesetting, digital printer, 3D printer in action. Part of a series on theHistory of printing TechniquesPintadera10,000 BCWoodblock printing200Movable type1040Intaglio (printmaking)1430Printing pressc.PetePete or Petes or variation, may refer to:
Carl GraebeCarl Graebe (German: [ˈɡʁɛːbə]; 24 February 1841 – 19 January 1927) was a German industrial and academic chemist from Frankfurt am Main who held professorships in his field at Leipzig, Königsberg, and Geneva. He is known for the first synthesis of the economically important dye, alizarin, with Liebermann, and for contributing to the fundamental nomenclature of organic chemistry.
University of KönigsbergThe University of Königsberg (German: Albertus-Universität Königsberg), commonly known as Albertina, was a university in Königsberg, East Prussia. It was founded in 1544 as the world's second Protestant academy (after the University of Marburg) by Duke Albert of Prussia and received the royal privilege by King Sigismund II Augustus of Poland in 1560.
Building block (chemistry)Building block is a term in chemistry which is used to describe a virtual molecular fragment or a real chemical compound the molecules of which possess reactive functional groups. Building blocks are used for bottom-up modular assembly of molecular architectures: nano-particles, metal-organic frameworks, organic molecular constructs, supra-molecular complexes. Using building blocks ensures strict control of what a final compound or a (supra)molecular construct will be.
Phenyl groupIn organic chemistry, the phenyl group, or phenyl ring, is a cyclic group of atoms with the formula C6H5−, and is often represented by the pseudoelement symbolPh (archaically φ) or Ø. The phenyl group is closely related to benzene and can be viewed as a benzene ring, minus a hydrogen atom, which may be replaced by some other element or compound to serve as a functional group.*As an Amazon Associate I earn from qualifying purchases.