Description

Phenylmercuric Stearate is an organomercury compound that combines the biocidal properties of phenylmercury with the lipophilic nature of stearic acid. This unique structure makes it a highly effective and persistent preservative and fungicide in various industrial formulations. It is primarily utilized by manufacturers in the coatings, polymer, and specialty chemical industries seeking long-term protection against microbial degradation and fungal growth.

Application

• Coatings and Paints Preservative: Acts as a powerful fungicide and mildewcide in water-based and solvent-based paints, varnishes, and architectural coatings to prevent spoilage in the can and fungal growth on the dried film.
• Polymer and Adhesive Stabilizer: Used as a biocide in polymer emulsions, latex, and adhesive formulations to inhibit bacterial and fungal contamination during storage and in the final product.
• Wood Treatment Agent: Employed in formulations for wood preservatives and stains to protect against rot, decay, and mold in demanding environments.
• Industrial Fungicide: Serves as an active component in fungicidal treatments for textiles, leather, and other organic materials susceptible to fungal attack.
• Laboratory Reagent: Used in specific synthetic and analytical chemistry applications as an organomercury source or catalyst.

Basic Information

Product Name	Phenylmercuric Stearate
CAS No.	104-59-6
Molecular Formula	C24H40HgO2
Molecular Weight	537.27 g/mol
Synonyms	Mercury, (stearato-O)phenyl-; Phenylmercury stearate; Phenylmercuric octadecanoate; (Stearoyloxy)(phenyl)mercury; Phenylmercury(II) stearate; PMSt; NSC 17615
EINECS	203-216-8

Quality Control

Our Phenylmercuric Stearate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and performance reliability. While specific grades are available for industrial applications, all material is characterized to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing assay, heavy metal limits, and other relevant parameters is provided with each shipment to support your quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. Due to its sensitivity, the product should be kept under an inert atmosphere (e.g., nitrogen) to minimize oxidation. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (Hg content)	Min. 36.0%
Melting Point	Approx. 95 - 105 °C
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	Contact for details

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