Description

Calcium Bis(Hydroxydimethylbenzenesulphonate) is a specialized organosulfur calcium salt with significant utility as a stabilizer and intermediate in industrial synthesis. Its value lies in its ability to act as a highly effective chelating agent and antioxidant, protecting materials from degradation. This compound is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance product longevity and performance under demanding conditions.

Application

• Polymer Stabilizer: Acts as a heat stabilizer and antioxidant in PVC and other halogenated polymers to prevent dehydrochlorination and discoloration during processing and use.
• Lubricant & Grease Additive: Functions as an anti-wear and extreme pressure (EP) additive, as well as an antioxidant, in industrial lubricants and calcium sulfonate complex greases.
• Chemical Intermediate: Serves as a key precursor or building block in the synthesis of more complex sulfonated compounds and specialty surfactants.
• Metal Working Fluids: Incorporated into formulations to provide corrosion inhibition and stability in coolants and cutting fluids.
• Chelating Agent: Used to sequester metal ions in various industrial processes, preventing unwanted catalytic reactions that lead to product breakdown.

Basic Information

Product Name	Calcium Bis(Hydroxydimethylbenzenesulphonate)
CAS No.	84924-86-7
Molecular Formula	C16H18CaO8S2
Molecular Weight	442.49 g/mol
Synonyms	Calcium bis(2-hydroxy-5-methylbenzenesulfonate); Calcium 2-hydroxy-5-methylbenzenesulfonate; Calcium hydroxymethylbenzenesulphonate; Calcium salt of 2-hydroxy-5-methylbenzenesulfonic acid; 2-Hydroxy-5-methylbenzenesulfonic acid calcium salt; Calcium 4-methyl-6-hydroxyphenyl sulfonate; Phenol, 2-methyl-5-sulfo-, calcium salt; Stabilizer Ca-MBS
EINECS	Contact for details

Quality Control

Our production of Calcium Bis(Hydroxydimethylbenzenesulphonate) adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing to ensure consistent purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters are provided to guarantee the material meets your specific technical requirements and supports your quality assurance processes.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Calcium Content	8.5 - 9.5 %
Loss on Drying	≤ 2.0 %
Sulfate (as SO4)	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm

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