Preferenze
AziendaGoodfellow GmbH
LinguaItaliano
ValutaEUR
Consegna aGermania

Preferenze

EUR
    Totale:
     
     Prodotto/i  Articolo/i
    Accesso | Registrazione
    • Boro - Foglio

      Discovered in 1808 by L.J. Lussac and L.J. Thenard (in Paris) and Sir Humphrey Davy (in London). Boron is a non-metallic element which occurs in several allotropes. It is rarely found in nature, normally occurring as borates or orthoboric acid (the abundance of boron in the earth's crust is 10 ppm, the principal ore being borax, Na₂B₄O₇.xH₂O). Amorphous boron is the more common allotrope and exists as a dark powder which is unreactive towards water, oxygen, acids and alkalis. Boron finds importance within nuclear reactors due to its neutron absorbing capabilities, boron steel being used as control rod material. Boron compounds are used for a number of applications including the manufacture of certain grades of glass and detergents. Boron will react directly with most metals to produce metal borides which are hard, inert binary compounds of various formulae and arrangements of the boron atoms. For example, as single atoms (M₂B), pairs (M₃B₂), single and double chains (MB, M₃B₄), sheets (MB₂), B₆ octahedra (MB₆) and B₁₂ clusters (MB₁₂). Boron also forms the binary compound, boron nitride, which is of interest as it is isoelectronic with carbon and occurs in two structural modifications; one is a layer structure similar to graphite which is soft and lubricating, whilst the other (formed under high pressure) has a very hard, stable, tetrahedral structure as found in diamond. Foglio - Sottili fogli di metallo puro e leghe metalliche. A causa della loro fragilità, alcuni fogli sono rivestiti su un lato con un sostegno in acrilico o poliestere. La parte in cui i fogli sono sostenuti è indicata nella descrizione dettagliata dell'elemento.

    3 risultati

    Prodotto
    Prodotto B-00-FL-000110 Boro - Foglio Thickness 2mm Size Light Tight 25mm x 25mm Purity 99.6%
    Prodotto B-00-FL-000130 Boro - Foglio Thickness 3mm Size Light Tight 25 mm x 25 mm Purity 99.6%
    Prodotto B-00-FL-000131 Boro - Foglio Thickness 3mm Size Light Tight 50 mm x 50 mm Purity 99.6%
    Sorry – Your selected filters returned no results.

    Please try a different filter selection or choose from one of the following product types below:

    Sorry, but you need to update your browser to use our website.

    We apologise for any inconvenience this may cause and thanks for your patience.

    To place a phone order:
    US:1 800 821 2870
    UK: 0800 731 4653

    Customer Support: info@goodfellow.com

    Thank you
    The Goodfellow Team

    Parla con uno dei nostri esperti

    0800 1000 579 (DE)

    Le nostre linee telefoniche sono aperte dal lunedì al venerdì dalle 8:00 alle 17:00.

    Per parlare con uno dei nostri uffici internazionali clicca qui.

    Puoi anche organizzare una richiamata tramite cliccando qui.