MilliporeSigma
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639230

Sigma-Aldrich

Carbon nanotube, single-walled, polyaminobenzene sulfonic acid functionalized

greener alternative

75-85% carbon basis, D × L 1.1 nm × 0.5-1.0 μm , bundle dimensions

Synonym(s):
Carbon nanotube, single-walled, PABS functionalized, SWNT, PABS functionalized
MDL number:
NACRES:
NA.23

Quality Level

assay

75-85% carbon basis

form

powder

mol wt

average Mw 400-600 g/mol (PABS)

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

extent of labeling

65% (PABS, typical)

D × L

1.1 nm × 0.5-1.0 μm , bundle dimensions

impurities

4% metals

solubility

ethanol: 0.05 mg/mL
DMF: 0.1 mg/mL
H2O: 5.0 mg/mL (As determined by near-IR absorbance spectroscopy.)

functional group

sulfonic acid

greener alternative category

General description

Average diameter of individual SWCNT = 1.4nm ± 0.1nm

Application

Method for dispersing in water: In solid form SWNTs are highly entangled and associated in macroscopic particles. It requires significant effort to break such an association and bring the material in solution. Sonicate 50 mg of material in 2 ml water for 30 min. Add 8 ml of water and sonicate for additional 90 min. Typically, after this procedure all material is completely dispersed according to visual observation. For quantitative measurement of the solubility, allow the dispersion to stand overnight at room temperature. Because of the high optical density of concentrated dispersion, dilute an aliquot from the upper layer of the studied dispersion by a factor of 100. The concentration of the diluted solution is estimated from the recorded NIR spectra using a plot of the absorbance at 9750 cm-1 compared to the concentration of a standard solution (see reference).

Packaging

100 mg in glass insert
Packaged in glass bottles

Preparation Note

Electric Arc Discharge Method

Analysis Note

Carbonaceous content[1]

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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