Sodium Algin Sulfate

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[ Other Name] Sodium Algin Sulfate; Sodium Alginate Sulfate
[ CAS No. ] 9010-06-4
[ Appearance ] Clear to slightly yellowish, viscous liquid
[ Purity ] 95%
[ Solubility ] 100% soluble in water. Insoluble in oils and high concentrations of ethanol.
[ pH Value (at 20°C) ] 5.0 – 7.5
[ Recommended Usage Level ] 1.0% – 5.0%

[ Function ]
1. Provides hydration and moisture retention by forming a breathable hydrogel film on the skin’s surface; this reduces moisture loss and alleviates dryness and flaking, making it suitable for dry skin or for repairing the skin barrier following laser procedures.
2. Lowers the levels of inflammatory mediators, thereby mitigating irritation such as redness and itching—ideal for sensitive skin or for post-sun exposure recovery.
3. Functions as a thickening agent and emulsifier within formulations, improving the texture of the product and ensuring a smoother feel upon application.
4. Extends the residence time of active ingredients (such as salicylic acid) on the skin’s surface, which helps minimize irritation and enables a sustained-release effect.

[ Application ]
1. Pharmaceuticals and biomaterials: Used in drug-loaded microspheres, controlled-release systems, interventional embolic agents, medical dressings, etc.
2. Cosmetic ingredients: Can serve as thickening, stabilizing, or film-forming agents.
3. Food industry: Certain derivatives can be used as stabilizers and emulsifiers.

About Sodium Algin Sulfate
Sodium Algin Sulfate is a name that may refer to a sulfated alginate derivative, but the exact chemical identity should be confirmed before describing its properties or applications. It should not automatically be treated as equivalent to ordinary sodium alginate, a seaweed-derived polysaccharide widely used as a thickener, stabilizer, and film-forming agent.