Mercuric Oxide Red ACS Grade *

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Mercuric Oxide, also known as Mercury(II) oxide or Mercury oxide, appears as red or orange-red, odorless hygroscopic crystals, powder or scales having the chemical formula HgO. It is insoluble in Water and can undergo decomposition upon exposure to light/air into Mercury and Oxygen. An ACS Grade reagent is a chemical that meets the purity requirements of the American Chemical Society (ACS). It is generally equivalent to the Analytical Reagent Grade. For dependable, consistent, and repeatable findings, the ACS Grade reagents can be utilized in high-quality research labs. In the United States of America (USA), Lab Alley sells its high-quality Mercuric Oxide Red, ACS Grade online at


Mercuric Oxide Red ACS Features:

Assay Min 99.0%
Insoluble in Dilute Hydrochloric Acid 0.03%
Residue after Reaction 0.025%
Chloride 0.025%
Sulfate 0.015%
Nitrogen Compounds 0.005%
Iron 0.005%
Common Uses
  • Reagent
  • Chemical precursor
  • Topical antiseptic
Commercial/Industrial Application
  • Pharmaceuticals
  • Preservative in cosmetics
Safety and Handling

Light Sensitive

Mercuric Oxide Red ACS Shipping Information:
DOT: Mercury oxide, 6.1, UN1641, PG II

Please contact us to request a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for Mercuric Oxide Red ACS.

Important: This product will only be shipped to Schools, Universities, Laboratories, or Companies. If you are an individual ordering this product, it will not be shipped to you. It will be deleted from your order and the rest of the order will be shipped without your confirmation. A Statement of Use if required for purchase.

One-Time Purchase

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Questions & Answers

  • Is this real red mercury? I'm using it for electricity

    This is a oxide of Mercury. It is >99.0% pure. 
    Thank you.