Purity Certificate
NanoAlsa Laboratory
99.9% purity of the silver nanoparticles.
Download PDF (EN)Ag · CAS 7440-22-4
High Purity Nano Silver 99.9%
NanoAlsa Nano Silver consists of silver nanoparticles (CAS 7440-22-4) with a certified purity of 99.9%, an average particle size below 25 nm, and spherical morphology. Nanometry was certified by the University of Chile through analysis of 101 particles at a 95% statistical confidence level. Produced by NanoAlsa in San Bernardo, Chile.
Technical specifications
NanoAlsa nano silver has a purity of 99.9% (purity certificate issued by the NanoAlsa Laboratory), CAS number 7440-22-4, an average particle size below 25 nm, a main size distribution of 62% between 5 and 10 nm, and spherical morphology, according to nanometry certified by the University of Chile over 101 particles at 95% statistical confidence.
| Parameter | Value |
|---|---|
| CAS number | 7440-22-4 |
| Purity | 99.9% — purity certificate from the NanoAlsa Laboratory |
| Average particle size | < 25 nm |
| Main size distribution | 62% between 5 and 10 nm |
| Morphology | Spherical |
| Nanometry analysis | 101 particles measured, 95% statistical confidence — University of Chile |
Certifications and technical documents
NanoAlsa publishes four downloadable technical documents for its nano silver: a 99.9% purity certificate (NanoAlsa Laboratory), a nanometry certificate (University of Chile), the product technical data sheet, and a chemical composition analysis. All documents are available in Spanish and English, in PDF format, with no registration required.
Nanometry Certificate
University of Chile
Analysis of 101 particles at 95% statistical confidence.
Download PDF (EN)Product Technical Data Sheet
NanoAlsa — Quality Control
Complete technical specifications of the nano silver.
Download PDF (EN)Chemical Composition Analysis
NanoAlsa — Scientific Division
Detailed chemical composition of the product.
Download PDF (EN)Comparison: NanoAlsa vs a typical research-grade supplier
Unlike a typical research-grade supplier, NanoAlsa backs its nano silver with publicly downloadable certificates: documented 99.9% purity and nanometry verified by the University of Chile. It also offers direct origin and technical support from Chile, with immediate access to the team that manufactures the product.
| Criterion | NanoAlsa | Typical research-grade supplier |
|---|---|---|
| Certified, documented purity | 99.9% with a downloadable purity certificate (NanoAlsa Laboratory) | Usually stated nominally, without a public supporting document |
| Publicly downloadable certificates | Yes: purity, nanometry, technical data sheet, and chemical composition, in Spanish and English | Usually available only on request or after purchase |
| University-verified nanometry | Yes: University of Chile, 101 particles, 95% statistical confidence | Usually based on the manufacturer's own internal measurements |
| Origin and direct support | Manufactured in Chile with direct technical support from the producer | Usually imported through intermediaries, with indirect support |
Applications
Nano silver with 99.9% purity is used in broad-spectrum antimicrobial systems, conductive coatings, and catalysis. Medical and pharmaceutical applications remain in research and development stages. Its average particle size below 25 nm and spherical morphology provide a high specific contact surface area.
Broad-spectrum antimicrobial systems
Incorporation of silver nanoparticles into paints, textiles, and additives for surfaces and materials with antimicrobial function.
Conductive coatings
Use of nanometric silver in conductive coatings for components and functional surfaces.
Medical and pharmaceutical applications (R&D)
A line in research and development stages. Any use in this field must be validated by the customer in accordance with the regulations applicable in their market.
Catalysis
Use of silver nanoparticles as a material of interest in industrial and research catalytic processes.
Frequently asked questions
Direct answers about NanoAlsa nano silver: certified 99.9% purity, CAS number 7440-22-4, average particle size below 25 nm with 62% of particles between 5 and 10 nm, nanometry certified by the University of Chile, differences versus nano copper, and the quotation process for industrial buyers.
What is the purity of NanoAlsa nano silver?
NanoAlsa nano silver has a purity of 99.9%, backed by a purity certificate issued by the NanoAlsa Laboratory, downloadable from this page as a PDF in both Spanish and English.
Who certifies the nanometry of the nano silver?
The nanometry of the nano silver was certified by the University of Chile. The analysis measured 101 particles at a 95% statistical confidence level and confirmed an average particle size below 25 nm with spherical morphology.
What is the particle size of the nano silver?
The average particle size is below 25 nm, with a main distribution of 62% of particles between 5 and 10 nm and spherical morphology, according to the nanometry certificate issued by the University of Chile.
What is the CAS number of nano silver?
The CAS number for silver is 7440-22-4. This identifier appears in the product technical data sheet and in the chemical composition analysis of NanoAlsa nano silver, both downloadable from this page.
How does nano silver differ from NanoAlsa nano copper?
Nano silver has a purity of 99.9% (CAS 7440-22-4) and an average particle size below 25 nm, while nano copper has a purity of 99.987% (CAS 7440-50-8) and a particle size of 5–90 nm, with nanometry certified by the Catholic University of Chile and the University of Chile.
How do I request a nano silver quotation?
Write to [email protected] or call +56 9 9642 5199, stating the required quantity and intended application. You can also use the contact form. We do not publish prices: each quotation is prepared according to volume and specification.
Request a nano silver quotation
To request a nano silver quotation, write to [email protected] or call +56 9 9642 5199. NanoAlsa operates from Camino a Malloco 2023, San Bernardo, Región Metropolitana, Chile, and answers technical and commercial inquiries in Spanish and English for industrial buyers and research centers.
NanoAlsa · Camino a Malloco 2023, San Bernardo, Región Metropolitana, Chile · +56 9 9642 5199 · [email protected]