651818

Gold etchant, standard

• Synonyme(s) : Antistrumin, Potassium monoiodide
• CAS Number: 7681-11-0
• Numéro MDL: MFCD07370792
• Code UNSPSC : 12352302
• Nomenclature NACRES : NA.23

Propriétés

• Composition: volatiles, 50-80%
• Niveau de qualité: 100
• pb: 100 °C (lit.); 100 °C/1 atm
• Solubilité: H₂O: miscible
• Densité: 1.2924 g/mL at 25 °C (lit.)
• Chaîne SMILES: [K+].[I-]
• InChI: 1S/HI.K/h1H;/q;+1/p-1
• Clé InChI: NLKNQRATVPKPDG-UHFFFAOYSA-M

Description

Description générale

Etching readily controlled with minimum undercutting. Room temperature operated. Cyanide-free for standard applications. Etch rate of 28 angstrom/sec @ 25 °C.

Gold etchant is a combination of potassium iodide and iodine as complexing agents synthesized by electrochemically oxidizing gold.

Application

Gold etchant is a selective general-purpose etchant for gold, compatible with negative and positive photoresists. It is used to etch out gold (Au) electrodes prior to scanning electron microscopy (SEM) imaging for morphological study and metal layer for the preparation of nanoelectrodes array. Gold etchant can also be used in metal assisted chemical etching (MACE) for the fabrication of p-n junction silicon nanopillar based solar cells.

Informations sur la sécurité

• Pictogrammes: GHS08
• Mention d'avertissement: Danger
• Mentions de danger: H372
• Conseils de prudence: P260 - P264 - P270 - P314 - P501
• Classification des risques: STOT RE 1 Oral
• Organes cibles: Thyroid
• Code de la classe de stockage: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)