639230

Carbon nanotube, single-walled

polyaminobenzene sulfonic acid functionalized, 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: MFCD05865412
• UNSPSC Code: 12352103
• NACRES: NA.23

Properties

• product name: Carbon nanotube, single-walled, polyaminobenzene sulfonic acid functionalized, 75-85% carbon basis, D × L 1.1 nm × 0.5-1.0 μm , bundle dimensions, avg. no. of layers, 1
• Quality Level: 100
• assay: 75-85% carbon basis
• form: powder
• mol wt: average M_w 400-600 g/mol (PABS)
• feature: avg. no. of layers 1
• 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

Description

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

Packaged in glass bottles

Preparation Note

Electric Arc Discharge Method

Analysis Note

Carbonaceous content

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H319,H335
• pcodes: P261 - P264 - P271 - P280 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves