MONOCRYSTALLINE POWDER
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MONOCRYSTALLINE POWDER
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CAS No:
7782-40-3
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Formula:
C
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Chemical Name:
MONOCRYSTALLINE POWDER
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Synonyms:
MONOCRYSTALLINE POWDER;DIAMOND NATURAL MONOCRYSTALLINE POWD&;DIAMOND POWDER;DIAMOND, SYNTHETIC, POLYCRYSTALLINE, POW DER, CA. 1 MICRON, 99.9%;DIAMOND, NANOPOWDER, 95+%;DIAMOND, NATURAL, MONOCRYSTALLINE, POWDE R, CA. 1 MICRON, 99.9%;DIAMOND, NANOPOWDER, 97+% METALS BASIS;DIAMOND, SYNTHETIC, MONOCRYSTALLINE, POW DER, CA. 1 MICRON, 99.9%
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CAS No:
Description
very hard crystals or light green powder Diamond is among the strongest Raman scatterers, and Raman spectroscopy is an important diagnostic tool for determining diamond film quality. Diamond has an intense Raman band at 1332 cm
-1
, the presence of which verifies a material contains diamond. The more regular the crystal lattice, the narrower the width of this band. Graphite has two first-order phonon Raman bands, a strong band at 1580 cm?1 and a weaker one at 1357 cm
-1
.
very hard crystals or light green powder
ChEBI: An allotropic form of the element carbon with cubic structure which is thermodynamically stable at pressures above 6 GPa at room temperature and metastable at atmospheric pressure. At low pressures diamond converts rapidly to graphite at temperatures above 1900 K in an inert atmosphere. The chemical bonding between the carbon atoms is covalent with sp3 hybridization.
Diamond nanopowder (DNPs) may be produced by multicathode direct current plasma chemical vapor deposition and high pressure high temperature (HPHT).Potential uses of nano-diamond are in biosensor applications. Surface modification of nano-diamond may enhance its linking mechanism with specific biomolecules. DNPs can be subjected to functionalization post Fenton treatment. These functionalized DNPs may be used as gene delivery systems.
MONOCRYSTALLINE POWDER Basic Attributes
12.0107
12
231-953-2
TSCA listed
Clear, Impurities (i.e. Nitrogen) and irradiation can change color to yellow, green, blue, pink, or brown.
7105.10.0011
Characteristics
0
Exists in two major varieties: those bearing nitrogen as an impurity (Type I) and those without nitrogen (Type II). These two subgroups are further subdivided into Types Ia, Ib, IIa, and IIb. Type Ia diamonds are the most common type of naturally occurring diamond; they exhibit 0.1 to 0.2 wt.% nitrogen present in small aggregates, including platelets. By contrast, nitrogen in Type Ib diamonds is dispersed substitutionally. Of the two Type II diamond types, Type IIb is a semiconductor due to minute amounts of boron impurities and exhibits a blue color, whereas Type IIa diamonds are comparatively pure. Electric insulator (E = 7 eV.). Burns in oxygen.
0.6
synthetic polycrystalline powder
3.5 g/mL at 25 °C (lit.)
4440°C
4827℃ [COT88]
nD20 2.4173
Insoluble
0 mmHg (approx)
Combustible Solid
Odorless
TASTELESS
Surface oxidation, which is an inherent feature of activated carbon production, results in hydroxyl, carbonyl, and carboxylic groups that impart an amphoteric character to the carbon so that it can be either acidic or basic.
Safety Information
III
4
1361
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HL4158550
Separated from strong oxidants. Dry. Keep in a well-ventilated room.
Stable.
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
H315
MONOCRYSTALLINE POWDER Use and Manufacturing
Jewelry. Polishing, grinding, cutting glass, bearings for delicate instruments; manufacture of dies for tungsten wire and similar hard wires; making styli for recorder heads, long-lasting phonograph needles. In semiconductor research.
Monocrystalline diamond particles internalized in human endothelial cells have potential applications in drug delivery.
Diamond powder is generally used as an abrasive to grind and polish hard surfaces.
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