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Ammonium alginate
- Film-forming property: The solution can form a flexible and breathable film after drying, suitable for food packaging and medical materials.
- Emulsifying and dispersing property: Effectively reduces interfacial tension, enabling oil-water two phases to form a stable emulsification system.
- Biocompatibility: Naturally derived, biodegradable, and friendly to humans and the environment. PH adaptability: Stable in the pH range of 4–10, prone to precipitation under acidic conditions.
1. Product Introduction:
Ammonium alginate is a light yellow to brown amorphous powder or granule with excellent hydrophilicity, thickening property, and gelling property. As a hydrophilic colloid, it is easily soluble in water to form a viscous solution, featuring low ash content due to its high-purity organic properties.
Ammonium alginate can rapidly undergo ion exchange upon contact with calcium ions to form a gel with thermal irreversibility. Gels formed by high G-type alginate have high hardness but are brittle; in contrast, gels formed by high M-type alginate have good flexibility but low hardness. Adjusting the ratio of the two types can produce gels with different strengths.
2.Applications:
1> Sealing coating for bottle caps of canned products.
2> Non-flame retardant; suitable for coating food packaging paper, facilitating the incineration of waste paper.
3> Rubber concentrate and chewing gum base.
4> Enables immiscible two phases (e.g., oil and water) to mix with each other and form a uniform dispersion or emulsion. Mainly used in:
◦ Canned foods containing cream or other fats (e.g., green beans, sweet corn)
◦ Processed cheese production
◦ Flavored yogurt and its products undergoing heat treatment after fermentation
◦ Cold drinks
3. Specifications:
Item | Parameter / Characteristic |
Appearance | Light yellow to brown amorphous powder or granule |
Solubility | Easily soluble in water to form a viscous solution; insoluble in organic solvents such as ethanol, chloroform, and ether |
Ash Content | Low ash content, high organic purity |
Core Properties | Excellent hydrophilicity, thickening property, gelling property, and emulsifying/dispersing property |
Gel Properties | Rapid ion exchange with calcium ions to form thermally irreversible gel>- High G-type: High hardness, brittle M-type: Good flexibility, low hardness for gels of different strengths |
Flame Retardancy | Non-flame retardant |
Main Applications | 1. Sealing coating for canned product bottle caps>2. Coating for food packaging paper. Rubber concentrate, chewing gum base emulsification and dispersion (cream-containing canned foods, processed cheese, heat-treated flavored yogurt, cold drinks, etc.) |
