Sigma-Aldrich 651818 Gold etchant, standard 500 mL
Marka
Stok Kodu
LB.SA.651818-500ML
| Sigma-Aldrich 651818 Gold etchant, standard 500 mL |
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Synonym(s): Antistrumin, Potassium monoiodide
CAS Number: 7681-11-0
MDL number: MFCD07370792
NACRES: NA.23
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PROPERTIES
composition volatiles, 50-80%
Quality Level 100
bp 100 °C (lit.) 100 °C/1 atm
solubility H2O: miscible
density 1.2924 g/mL at 25 °C (lit.)
InChI 1S/HI.K/h1H;/q;+1/p-1
InChI key NLKNQRATVPKPDG-UHFFFAOYSA-M
DESCRIPTION
General description
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.[1]
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[2] and metal layer for the preparation of nanoelectrodes array.[3] Gold etchant can also be used in metal assisted chemical etching (MACE) for the fabrication of p-n junction silicon nanopillar based solar cells.[4]
Packaging
500 mL in poly bottle |
