Description

Calamine is a time-honored medicinal powder primarily composed of zinc oxide with a small proportion of ferric oxide, which gives it its characteristic pink color. This product is valued for its soothing, protective, and mildly astringent properties, making it a cornerstone ingredient in topical skin treatments. It is essential for manufacturers in the pharmaceutical and personal care industries seeking a reliable, time-tested active ingredient for dermatological applications.

Application

• Topical Antipruritic Lotions and Creams: Primary use for relieving itching and discomfort associated with poison ivy, insect bites, chickenpox, and sunburn.
• Soothing Skin Protectants: Forms a protective barrier on irritated skin, aiding in the management of minor burns, scrapes, and rashes.
• Acne Treatment Preparations: Used in formulations for its oil-absorbing and drying properties to help manage mild acne.
• Diaper Rash Ointments: A key ingredient in products designed to soothe and protect sensitive skin from irritation.
• Cosmetic Foundations and Powders: Utilized for its color and skin-smoothing effects in certain makeup products.
• Veterinary Dermatological Products: Applied in creams and sprays to treat skin irritations in animals.

Basic Information

Product Name	Calamine
CAS No.	8011-96-9
Molecular Formula	Primarily ZnO, Fe₂O₃
Molecular Weight	N/A (Mixture)
Synonyms	Calamine Lotion USP; Prepared Calamine; Zinc Oxide with Ferric Oxide; Pink Calamine; Calaminum Praeparatum; Calamine Topical; Zinc Carbonate, basic (historical)
EINECS	Contact for details

Quality Control

Our Calamine is manufactured and tested to meet stringent pharmacopeial standards, ensuring consistent quality and performance. We provide comprehensive quality documentation, including Certificates of Analysis (COA), which verify compliance with specifications for identity, assay, and impurity limits. Our quality system is designed to support customers in pharmaceutical (USP/BP), cosmetic, and OTC drug applications, ensuring reliable supply and regulatory confidence.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep the container tightly sealed to prevent absorption of moisture and carbon dioxide from the air.

Specification

Item	Specification
Description	A fine, pink powder
Identification (IR)	Conforms
Assay (ZnO)	98.0 - 100.5%
Iron Content (as Fe₂O₃)	0.5 - 1.0%
Loss on Ignition	≤ 2.0%
Acid-insoluble substances	≤ 1.0%
Arsenic (As)	≤ 3 ppm
Lead (Pb)	≤ 10 ppm
Microbial Limits	Meets USP requirements

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.