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263265

Sigma-Aldrich

Gallium

99.99% trace metals basis

Sinónimos:

Elemental gallium

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About This Item

Fórmula lineal:
Ga
Número de CAS:
7440-55-3
Peso molecular:
69.72
Número MDL:
MFCD00134045
Código UNSPSC:
12141715
ID de la sustancia en PubChem:
24855960
NACRES:
NA.23
En este momento no podemos mostrarle ni los precios ni la disponibilidad

Nivel de calidad

200

Ensayo

99.99% trace metals basis

Formulario

(metallic liquid or solid (ambient temp dependent))

resistividad

25.795 μΩ-cm, 30°C

bp

2403 °C (lit.)

mp

29.8 °C (lit.)

densidad

5.904 g/mL at 25 °C (lit.)

temp. de almacenamiento

2-8°C

cadena SMILES

[Ga]

InChI

1S/Ga

Clave InChI

GYHNNYVSQQEPJS-UHFFFAOYSA-N

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Descripción general

Gallium is a rareearth element that is widely used in smart electronic devices and integratedcircuits as it provides the advantages of low energy consumption and highcomputational speeds. Due to its high boiling point and low melting point, itexhibits a wide temperature range in the liquid state. It tends to formsulfate, chloride, and phosphate complexes due to its high charge. Thecompounds of gallium find applications in advanced semiconductors and LEDchips.

Aplicación

Gallium can be used as a precursor to synthesize:
  • Gallium nitride and other Ga-based compounds for optoelectronic applications.
  • Sulfur/gallium hybrid cathode material for lithium-sulfur batteries. The surface of Ga metal promotes the redox reaction of lithium polysulfides due to its electrocatalytic effect.
  • Ga-based liquid alloys for the fabrication offlexible electronic devices.

Características y beneficios

  • Excellent conductor of heat and electricity
  • Wide temperature range in the liquid state
  • Lowvapor pressure at high temperature

Pictogramas

CorrosionExclamation mark
GHS05,GHS07

Palabra de señalización

Warning

Frases de peligro

H290,H302,H412

Clasificaciones de peligro

Acute Tox. 4 Oral - Aquatic Chronic 3 - Met. Corr. 1

Código de clase de almacenamiento

8A - Combustible corrosive hazardous materials

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificados de análisis (COA)

Lot/Batch Number
MKCX2908
MKCV8503
MKCT2084
MKCT9349
MKCR9025

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Sayan Sarkar et al.
Scientific reports, 9(1), 8180-8180 (2019-06-05)
Recent advances in high performance thermoelectric materials have garnered unprecedented attention owing to their capability of direct transformation of heat energy to useful electricity. Copper Telluride (Cu2Te), a member of the chalcogenide family has emerged as a state-of-the-art thermoelectric material
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Dalton transactions (Cambridge, England : 2003), 46(41), 14158-14163 (2017-10-07)
Previously unreported σ-phases in the ternary niobium-based systems Nb-X-Ga for X = Ru, Rh, Pd, Ir, Pt, Au, and Nb-X-Al for X = Ir, and Pt are presented, prepared by arc-melting followed by annealing at 1000 °C for 1 week.
Chen, X.Z. et al.
Chemistry of Materials, 11, 75-75 (1999)
Technetium and gallium derived radiopharmaceuticals: comparing and contrasting the chemistry of two important radiometals for the molecular imaging era.
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Chemical reviews, 110(5), 2903-2920 (2010-04-27)
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Microbes have evolved elaborate iron-acquisition systems to sequester iron from the host environment using siderophores and heme uptake systems. Gallium(III) is structurally similar to iron(III), except that it cannot be reduced under physiological conditions, therefore gallium has the potential to
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Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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