MilliporeSigma
All Photos(1)

Documents

651842

Sigma-Aldrich

Gold etchant, nickel compatible

Sign Into View Organizational & Contract Pricing

MDL number:
NACRES:
NA.23

vapor density

9 (vs air)

Quality Level

vapor pressure

0.3 mmHg ( 15 °C)

composition

volatiles, 50-80%

bp

100 °C/1 atm

solubility

H2O: miscible at 20 °C

General description

Nickel compatible gold etchant is an etching solution that can be used in the removal of the gold layer from the surface. Compatibility of gold etchants with nickel allows it to be utilized in applications where nickel is used as a dominant material in the fabrication of micro-electro-mechanical systems (MEMS).

Application

Elective general-purpose etchant for gold. Compatible with negative and positive photoresists.

Features and Benefits

Etching readily controlled with minimum undercutting. Room temperature operated. Cyanide-free, no attack of nickel films.

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

STOT RE 1 Oral

target_organs

Thyroid

Storage Class

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 1

1 of 1

Potassium iodide BioUltra, ≥99.5% (AT)

Sigma-Aldrich

60399

Potassium iodide

A monolithic micro-optical interferometer deep etched into fused silica
Weigel C, et al.
Microelectronic Engineering, 174(5), 40-45 (2017)
Determination of young's modulus of electrochemically co-deposited Ni-Al2O3 nanocomposite
Wei X, et al.
Materials Letters, 62(12-13), 1916-1918 (2008)
Micro-elastometry on whole blood clots using actuated surface-attached posts (ASAPs)
Judith RM, et al.
Lab on a chip, 15(5), 1385-1393 (2015)

Protocols

Photoresist kit offers pre-weighed chemical components for lithographic processes, with separate etchants for various substrate choices.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service