Name: China Chemical Manufacturer Supply High Quality Calamine CAS 8011-96-9 with good service
Brand: Wuhan Fortuna Chemical Co., Ltd.

Specifications of Calamine CAS 8011-96-9

Item	Specifications	Results
Appearance	Pink or reddish brown powder	Conform
Chloride	≤0.07%	0.034%
Sulphate	≤0.6%	0.52%
Matter insoluble in acid	≤1.0%	0.14%
Assay	68-74%	72.3%

Parameters of Calamine CAS 8011-96-9

Product parameters
Cas number:	8011-96-9
Appearance:	Pink or reddish brown powder
Purity:	68% - 74%
Package details:	25kg/drum
Brand:	Fortunachem

Calamine is a mixture of inorganic compounds, primarily used for its soothing and mild antiseptic properties. In a chemical and industrial context, it is defined by its specific composition rather than its common over-the-counter use.

Chemical Definition & Composition

Calamine is primarily a blend of zinc oxide (ZnO) and a small amount (typically 0.5-2%) of ferric oxide (Fe₂O₃), which gives it its characteristic pink color.

Historical Definition: Originally, "calamine" referred to a zinc carbonate ore (smithsonite) or a zinc silicate ore (hemimorphite). The term now most commonly refers to the prepared pharmaceutical/chemical product.
"Prepared Calamine" is the modern standardized material, made synthetically by mixing zinc oxide with iron oxide pigment.

Primary Uses in Chemical & Industrial Contexts

1. Pharmaceutical & Cosmetic Ingredient (Bulk Chemical):
As a bulk chemical, it is processed into:

Lotions and Creams: Its key functions here are chemical: zinc oxide acts as a mild astringent, antiseptic, and protective barrier. The iron oxide provides a cosmetically acceptable pigment.
Powders: Used for its adsorbent, drying, and soothing properties.

2. Pigment and Colorant:

The ferric oxide component provides a soft pink hue. In this capacity, calamine can be used as a non-toxic, stable inorganic pigment in certain applications, including some cosmetics, paints, and coatings where its specific color and inert properties are desirable.

3. Catalyst and Chemical Reagent:

Zinc Oxide Component: Calamine can serve as a source of or be a component in heterogeneous catalysts, particularly for certain organic synthesis reactions (e.g., dehydrogenation, desulfurization) due to zinc oxide's catalytic activity.
Mild Abrasive & Polishing Agent: Its fine powder form makes it useful in some metal polishes and cleaning compounds.

4. Starting Material in Metallurgy:

Historically, the natural calamine ore (zinc carbonate/silicate) was a crucial zinc source for producing brass (an alloy of copper and zinc) via the cementation process. The zinc from the calamine ore would vaporize and diffuse into copper.

Key Distinction: Calamine Lotion vs. Calamine Compound

Calamine (the compound): The chemical mixture of ZnO + Fe₂O₃.
Calamine Lotion: A formulated product that often contains calamine compound, zinc oxide, glycerin, bentonite, and water. Sometimes "calamine lotion" uses zinc oxide alone with a pink dye, bypassing the classic calamine mixture.

Summary

Chemically, calamine is a pink-colored mixture of zinc oxide and ferric oxide. Its uses extend beyond topical lotions to include roles as a non-toxic pigment, a source of zinc oxide for catalysis, a mild abrasive, and historically, as a vital zinc ore for brass production. Its value lies in the combined chemical properties of its two primary components: the medicinal/adsorbent/catalytic properties of zinc oxide and the colorant property of iron oxide.