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Merck

22182

Supelco

Cellulose

acid washed, from spruce, for column chromatography

Sinónimos:

Cellulose powder, Cotton linters

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About This Item

Número de CAS:
Número CE:
Número MDL:
Código UNSPSC:
23151817
NACRES:
SB.52

origen biológico

spruce

Nivel de calidad

grado

for column chromatography

formulario

powder

calidad

acid washed

técnicas

LPLC: suitable

fibra Al

0.02-0.15 mm

impurezas

≤0.05% ether extract

residuo de ign.

~0.01%

matriz

Cellulose

grupo activo de la matriz

polymer

tamaño de partícula

20-150 μm

trazas de catión

Cu: ≤5 mg/kg
Fe: ≤10 mg/kg

técnica de separación

size exclusion (SEC)

InChI

1S/C12H22O11/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17/h3-20H,1-2H2/t3?,4?,5?,6?,7?,8?,9?,10-,11?,12+/m1/s1

Clave InChI

GUBGYTABKSRVRQ-WFVLMXAXSA-N

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Descripción general

Cellulose, a homopolymer consisting of glucose units joined by beta-1,4 bonds. These are strongly attached through inter and intramolecular hydrogen bonds and van der Waals forces resulting in microfibrils which together form fibers. They are arranged in parallel reducing ends of adjacent glucan chains. Cellulose is widely used as sorbent in TLC.

Aplicación

Cellulose was used to measure the cyrstallinity index using X-ray diffraction (XRD) patterns and solid-state 13C nuclear magnetic resonance spectra.
High purity cellulose powders for partition chromatography.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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A combined study of crystallinity index (CI), degree of polymerisation (DP) and thermal stability of cellulose was carried out for monitoring the effect of ball-milling. DP and CI are two fundamental quantities that describe the physico-chemical behaviour of cellulose. Milling
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Biotechnology for biofuels, 3, 10-10 (2010-05-26)
Although measurements of crystallinity index (CI) have a long history, it has been found that CI varies significantly depending on the choice of measurement method. In this study, four different techniques incorporating X-ray diffraction and solid-state 13C nuclear magnetic resonance
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Annual review of microbiology, 49, 399-426 (1995-01-01)
In anaerobic environments rich in decaying plant material, the decomposition of cellulose is brought about by complex communities of interacting microorganisms. Because the substrate, cellulose, is insoluble, bacterial and fungal degradation occurs exocellularly, either in association with the outer cell
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In this assay, the evaluation of lipophilicity of four ACE-inhibitors and hydrochlorothiazide (HCTZ) with RP-TLC on cellulose layers was described using three binary solvent systems. The selected ACE inhibitors had sufficiently different structures which can indicate the method suitability for
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The Arabidopsis thaliana CONSTITUTIVE EXPRESSOR OF PATHOGENESIS-RELATED GENES5 (CPR5) gene has been previously implicated in disease resistance, cell proliferation, cell death, and sugar sensing, and encodes a putative membrane protein of unknown biochemical function. Trichome development is also affected in

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