The substance corresponding to CAS 62386-95-2 is PVM/MA copolymer calcium/sodium, also commonly known as maleic acid-methyl vinyl ether copolymer calcium sodium salt, a widely used polymer copolymer.

I. Basic Identification Information
Standard Chinese Name: PVM/MA Copolymer Calcium/Sodium (Calcium and Sodium Salts of Maleic Acid-Methyl Vinyl Ether Copolymer)
CALCIUM/SODIUM PVM/MA COPOLYMER
Trade names: Gantrez AT 955, OraRez MS, Fixodent, etc
Molecular formula: C₇H₇CaNaO₅, with a repeating unit structure of (C₄H₄O₅)ₓ·(C₃H₆O)ₓ·mCa·nNa
Molecular weight: 234.19525

 
II. Core Physical and Chemical Properties
Appearance: white or off-white powder
Solubility: Soluble in water, forming a amber-colored solution with high viscosity and strong adhesion
pH Value: The pH range of a 1% aqueous solution is 5.5 to 7.0
Calcium content: 11%~16% on an anhydrous basis
Boiling point: 355.5°C, flash point: 183°C
Bulk density: ≥0.5 g/cm³

 
III. Security and Storage Features
Hazard Classification: Not classified as hazardous chemicals, no special warning labels
Microbial indicators: Total aerobic bacteria count ≤500 cfu/g, pathogenic bacteria (such as E. coli, Salmonella, etc.) all negative
Storage requirements: Must be kept in a cool, dry place away from light and moisture, sealed in a well-ventilated indoor environment

 
IV. Main Application Scenarios
The core is used for the preparation of denture adhesives, providing excellent wet bonding strength and long-lasting retention
It can also serve as a chemical intermediate for the research, development, and production of related fine chemicals

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CAS 62386-95-2 Calcium/sodium Pvm/ma Copolymer (PVM/MA Copolymer Calcium/Sodium)
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