420840

Sigma-Aldrich

LUDOX® AS-40 colloidal silica

40 wt. % suspension in H2O

Sinônimo(s):
Silica preparation
Fórmula linear:
SiO2
Número CAS:
Peso molecular:
60.08
Número MDL:
ID de substância PubChem:

Nível de qualidade

200

descrição

colloidal

concentração

40 wt. % suspension in H2O

área da superfície

~135 m2/g

pH

9.1

densidade

1.295 g/mL at 25 °C

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Procurando produtos similares? Visit Guia de comparação de produtos

Aplicação

Ammonium stabilizing counterion
LUDOX® AS-40 colloidal silica has been used as:
  • As a silica source to develop a porous substrate for constructing thermally responsive gel-infused surface.
  • A silica standard reference material for NMR calibration to determine the surface area of silica particles using solvent relaxation data.
  • A silica source for developing mordenite membranes on porous α-alumina supports via seed-assisted crystallization.

Embalagem

1, 4 L in poly bottle
18 L in poly drum

Informações legais

LUDOX is a registered trademark of W.R. Grace & Co.-Conn.

storage_class_code

12 - Non Combustible Liquids

WGK Alemanha

nwg

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Certificado de análise

Certificado de origem

Separation of water?acetic acid mixtures by pervaporation using a thin mordenite membrane.
Li G, et al.
Separation and Purification Technology, 32(1-3), 199-206 (2003)
Gel?Infused Slippery Surface with Enhanced Longevity and Thermally Controllable Sliding Properties.
Zhu G H, et al.
Advanced Materials Interfaces, 3(20), 1600515-1600515 (2016)
Salt enhanced solvent relaxation and particle surface area determination via rapid spin-lattice NMR.
Elliott L N, et al.
Powder Technology, 333, 458-467 (2018)
K E Kovalenko et al.
Ecological applications : a publication of the Ecological Society of America, 23(5), 1048-1060 (2013-08-24)
Boreal wetlands play an important role in global carbon balance. However, their ecosystem function is threatened by direct anthropogenic disturbance and climate change. Oil sands surface mining in the boreal regions of Western Canada denudes tracts of land of organic...
David M Brown et al.
Toxicology letters, 224(1), 147-156 (2014-01-28)
We investigated the effects of silica particles and nanoparticles (NPs) (50 nm and 200 nm) with a neutral and positively charged surface when dispersed in saline, bovine serum albumin (BSA) or lung lining fluid (LLF) 24 h post instillation into...

Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.

Entre em contato com a assistência técnica