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Graphene quantum dots

Catalog Number
ACM7440440-317
CAS
7440-44-0
Description
Carbon black oil appears as a dark colored liquid with a petroleum-like odor. Less dense than water and insoluble in water. Vapors heavier than air.;Carbon, activated is a black grains that have been treated to improve absorptive ability. May heat spontaneously if not properly cooled after manufacture.;Carbon, animal or vegetable origin appears as a black powder or granular mixed with a tar or starch and water binder pressed into regular lumps or briquettes. Heats slowly and ignites in air especially if wet.;Graphite (natural) appears as a mineral form of the element carbon. Hexagonal crystals or thin leaf-like layers. Steel-gray to black with a metallic luster and a greasy feel. An electrical conductor. Used for high-temperature crucibles, as a lubricant and in "lead" pencils.;DryPowder; DryPowder, Liquid; DryPowder, PelletsLargeCrystals; DryPowder, PelletsLargeCrystals, WetSolid, OtherSolid, Liquid; DryPowder, WetSolid, Liquid; Liquid; OtherSolid; OtherSolid, GasVapor, Liquid; PelletsLargeCrystals; PelletsLargeCrystals, OtherSolid, Liquid; WetSolid; WetSolid, Liquid;OtherSolid; PelletsLargeCrystals;DryPowder; DryPowder, OtherSolid; DryPowder, PelletsLargeCrystals; OtherSolid; PelletsLargeCrystals; PelletsLargeCrystals, OtherSolid; WetSolid;DryPowder; DryPowder, OtherSolid; DryPowder, PelletsLargeCrystals; DryPowder, WetSolid; Liquid; OtherSolid; PelletsLargeCrystals; PelletsLargeCrystals, OtherSolid; WetSolid;Black, odourless powder;BLACK POWDER OR SOLID IN VARIOUS FORMS. ODOURLESS WHEN PURE.;BLACK FLAKES, LUMPS, POWDER OR CHIPS.;ODOURLESS BLACK PELLETS OR EXTREMELY FINE POWDER.;Black, odorless solid or a dark colored liquid with a petroleum-like odor.;Black grains that have been treated to improve absorptive ability.;Steel gray to black, greasy feeling, odorless solid;Black, odorless solid.;Steel gray to black, greasy feeling, odorless solid.;Steel gray to black, greasy feeling, odorless solid.
IUPAC Name
carbon
Molecular Weight
12.011g/mol
InChI
InChI=1S/C
InChI Key
OKTJSMMVPCPJKN-UHFFFAOYSA-N
Boiling Point
Very high (USCG, 1999);Sublimes (NIOSH, 2016);4200 °C;Sublimes at 3642 °C; triple point (graphite-liquid-gas), 4492 °C at a pressure of 101.325 kPa;>4000 °C;sublimes;sublimes;Sublimes;Sublimes;Sublimes
Melting Point
6602 °F (Sublimes) (NIOSH, 2016);Sublimes;>3500 °C;≈3550 °C;sublimes;6602°F (sublimes);Sublimes;6602°F (Sublimes);6602°F (Sublimes)
Density
2 at 68 °F (USCG, 1999);2.0 to 2.25 (NIOSH, 2016);1.8-2.1;0.08 to 0.5;Relative density (water = 1): 1.8-3.51;Relative density (water = 1): 2.09-2.23;Relative density (water = 1): 1.8-2.1;2.0-2.25;1.8-2.1;2.0-2.25;1.5-1.8
Solubility
Insoluble (NIOSH, 2016);Insoluble in water and organic solvents;INSOL IN ALL SOLVENTS;Insoluble in water;Insoluble in organic solvents;Activated carbon is generally considered to exhibit low affinity for water.;Insoluble in water;INSOL IN WATER OR OTHER KNOWN SOLVENTS;Solubility in water: none;Solubility in water: insoluble;Solubility in water: none;Insoluble;Insoluble;Insoluble
Appearance
powder
Application
Our CQDs possess the strong and tunable fluorescence emission properties that are controllable by excitation wavelength and enable their applications in imaging, biomedicine, optronics, catalysis, and sensing.
Color
colorless
Concentration
1 mg/mL in H₂O
Fluorescence
λex 485 nm; λem 525 nm, FWHM 70 nm, quantum yield >17%
Odor
Odorless;ODORLESS;Odorless.
Packaging
100 ml
Quality Level
100
Size
<5 nm
Stability
IF.../CHARCOAL/ IS STORED.../SRP: OPEN TO ATMOSPHERE/, IT GRADUALLY ADSORB VAPORS FROM AIR AND BECOMES WORTHLESS.
Thickness
1-2 nm
Our products are for research use only and cannot be used for any clinical purposes.

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