ARONVIS Sodium Polyacrylate
ARONVIS is a high-performance sodium polyacrylate thickener and gelling agent specially developed by TOAGOSEI CO., LTD. It complies with Japan’s Pharmaceutical Excipients Standard and Standards for Ingredients of Quasi-drugs and is registered with China’s National Medical Products Administration (NMPA).
Features
1) ARONVIS is a water-soluble polymer powder (polyelectrolyte) synthesized from acrylic acid and sodium hydroxide.
2) It dissolves in ordinary cold water, forming an odorless, colorless, and transparent aqueous solution.
3) Its aqueous solution is a polyelectrolyte solution with excellent thickening performance.
4) The aqueous solution is anionic.
5) It can be used as a pharmaceutical excipient and as an ingredient in topical pharmaceuticals, offering a high level of safety.
Chemical Structure
| Grade | Chemical Structure | |
|---|---|---|
| Fully Neutralized Product |
SX MX | |
| Partially Neutralized Product |
AHX AH-105X AH-106X |
AHX：m : n = 30 : 70 AH-105X：m : n = 50 : 50 AH-106X：m : n = 65 : 35 |
General Properties
| Product Name | Appearance | Granules | Loss on Drying (%) | Viscosity 0.2% Aqueous Solution （mPa s /30℃） | pH | Molecular Weight | |
|---|---|---|---|---|---|---|---|
| Fully Neutralized Product | SX | White Powder | Fine Particles | 5 or Less | 400～600 | 8.0～10.0 | 4–5 Million |
| MX | White Powder | Fine Particles | 5 or Less | 200～400 | 8.0～10.0 | 2–3 Million | |
| Partially Neutralized Product | AHX | White Powder | Fine Particles | 5 or Less | 500～650 | 6.5～7.5 | 4–5 Million |
| AH-105X | White Powder | Fine Particles | 5 or Less | 500～650 | 6.0～7.0 | 4–5 Million | |
| AH-106X | White Powder | Fine Particles | 5 or Less | 500～650 | 5.5～6.5 | 4–5 Million |
Specifications
| Grade | Pharmaceutical Excipients Standard | Standards for Ingredients of Topical Pharmaceuticals | |
|---|---|---|---|
| Fully Neutralized Product | SX | Sodium Polyacrylate | Sodium Polyacrylate |
| MX | Sodium Polyacrylate | Sodium Polyacrylate | |
| Partially Neutralized Product | AHX | Sodium Polyacrylate | Sodium Polyacrylate |
| AH-105X | Partially Neutralized Polyacrylic Acid | Polyacrylate | |
| AH-105X | Partially Neutralized Polyacrylic Acid | Polyacrylate |
Properties
Relationship Between Concentration and Viscosity
ARONVIS is a polyelectrolyte. When dissolved in water, sodium ions dissociate from the polymer structure, leaving the polymer ions with numerous negative charges. Interactions between positive and negative charges extend the molecules and produce a thickening effect. Higher ARONVIS concentrations result in higher viscosity.
The viscosity of ARONVIS aqueous solutions is affected only slightly by pH changes under alkaline conditions, but is significantly affected by pH under acidic conditions.
Applications
| Applications | |
|---|---|
| Pharmaceuticals (Pharmaceutical Excipients) | Base material for topical poultices and thickener for ointments |
| Cosmetics (Ingredients for Topical Pharmaceuticals) | Base material for facial masks and thickener for creams and lotions |
| General Goods | Base material for cooling pads |
| Industrial Applications | Thickening of latexes, emulsions, and paints |