Description

Ferric Subsulfate is an inorganic salt of iron, recognized for its astringent and hemostatic properties. This compound is a critical reagent in specialized chemical synthesis and serves as a key ingredient in medical and water treatment formulations. It is essential for manufacturers and laboratories in the pharmaceutical, chemical processing, and environmental technology sectors seeking a reliable source of high-purity iron chemistry.

Application

• Pharmaceutical Intermediate: Used in the synthesis of specific iron-based active pharmaceutical ingredients (APIs) and as a starting material for other iron compounds.
• Medical & Veterinary Astringent: A key component in topical solutions and styptic pencils designed to stop minor bleeding by contracting tissue.
• Water & Wastewater Treatment: Employed as a coagulant and flocculant aid for the removal of phosphates and clarification of industrial effluent.
• Laboratory Reagent: Serves as a standard or reagent in analytical chemistry for redox titrations and qualitative testing.
• Dye & Pigment Manufacturing: Acts as a mordant in the textile industry to fix dyes onto fabrics and as a precursor for certain iron oxide pigments.
• Wood Treatment & Preservation: Used in formulations to impart color and provide some preservative qualities to timber.

Basic Information

Product Name	Ferric Subsulfate
CAS No.	1310-45-8
Molecular Formula	Fe4H2O18S3 (Common representation for basic ferric sulfate)
Molecular Weight	Approx. 577.88 g/mol (for Fe4H2O18S3)
Synonyms	Basic Ferric Sulfate; Iron(III) Subsulfate; Monsel's Salt; Ferric Subsulphate; Basic Iron(III) Sulfate; Ferrisulphas Basicus; Iron Persulfate; Sulfuric Acid, Iron(3+) Salt (3:4), Basic
EINECS	215-190-0

Quality Control

Our Ferric Subsulfate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture which can lead to caking or degradation.

Specification

Item	Specification
Appearance	Yellowish-brown powder or granules
Identification (IR)	Conforms to standard
Assay (as Fe)	≥ 20.0 %
Solubility (in Water)	Partially soluble with residue
Loss on Drying	≤ 5.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm

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