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Pharmaceutical Chemistry
Colloidal Silver
GOST/CAS:
CAS 7440-22-4
Colloidal silver is a highly effective, ready-to-use or concentrated solution of silver nanoparticles stabilized in deionized water. It serves as a powerful biocidal, antibacterial, and anti-inflammatory active ingredient for the manufacturing of a wide range of cosmetics, household chemicals, disinfectants, and antiseptics. The product is a transparent liquid with a slight yellowish or brownish tint (depending on the concentration) and is completely odorless. Due to its pronounced antimicrobial properties against most pathogenic bacteria, viruses, and fungi, colloidal silver is an indispensable raw material for creating modern, eco-friendly product lines in the Household & Personal Care industry.
Applications
Cosmetics and Personal Hygiene: Used as an active ingredient in creams, toners, and lotions for acne-prone skin, anti-dandruff shampoos, toothpastes, liquid soaps, and deodorants. It acts as a natural preservative, reducing the need for parabens.
Household Chemicals and Disinfection: Applied in the production of hand and surface antiseptics, antibacterial detergents, air purification and air conditioning sprays, as well as sanitizing formulations for textiles and footwear.
Pharmaceuticals and Veterinary Medicine: Included in healing ointments, gels, drops, and solutions for treating wounds, burns, and mucous membranes.
Textile Industry: Used for the impregnation of fabrics, uniforms, and medical textiles to impart durable, long-lasting antimicrobial and deodorizing properties.
Key Advantages
Broad-Spectrum Antimicrobial Activity: Effectively destroys over 650 types of pathogenic microorganisms, including bacteria, viruses, and fungi, while preventing them from developing resistance or adaptation.
Safety and Hypoallergenicity: Absolutely safe for human skin at working concentrations, non-irritating, toxicologically neutral, and does not accumulate in dangerous quantities within the body.
Prolonged Protective Effect: Silver nanoparticles fixate onto treated surfaces or the skin, providing long-lasting residual protection against re-contamination and bacterial growth.
Stability and Synergy: Exhibits excellent compatibility with most cosmetic surfactants, plant extracts, and bases, enhancing the overall efficacy and shelf-life of finished formulations.
Storage & Transportation
- Store in dry, clean, cool warehouse facilities in tightly sealed original packaging, protected from direct sunlight and away from heat sources.
- Important: Protect from freezing! Recommended storage temperature range is +5°C to +25°C. Freezing may destabilize the solution, causing nanoparticles to precipitate out.
- Avoid contact with strong oxidizing agents and halogen salts (such as chlorides) to prevent the precipitation of silver chloride.
- Transportation is permitted by all types of covered transport, provided the required temperature regime is maintained. The material is classified as Non-hazardous for transport.
- Shelf Life: 1–2 years from the date of manufacture (depending on the type of stabilizer used).
Technical Specifications
Appearance
Clear or slightly opalescent yellowish/brownish odorless liquid
Silver Mass Fraction (Concentration)
100 ppm / 500 ppm / 1000 ppm (or custom specified)
Nanoparticle Size
10 – 30 nm
pH (in native solution)
6.0 – 8.0
Solubility
Fully miscible with water in all proportions
Heavy Metals Content
Not more than 0.001%
Supply info
- Plastic jerrycans with airtight caps: 5 L / 10 L / 20 L.
- Plastic IBC containers (totes): 1000 kg for large-scale industrial manufacturing.
- Bulk filling into customer-provided containers is available upon agreement.