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Silver

CAS Number
7440-22-4
EC Number
231-131-3
Chemical Formula
Ag
Molecular Weight
107.868 g/mol

Description

Silver (CAS 7440-22-4 ), also designated E174 as a food-contact and cosmetic colorant, is a precious metal sourced in refined elemental form for industrial, decorative, and antimicrobial applications. Argentum is the historical designation still referenced in pharmaceutical and laboratory contexts. Demand spans sectors where conductivity, catalytic activity, or controlled microbial suppression are procurement priorities. In personal care and cosmetics, E174 silver is used as a surface colorant in decorative products such as nail preparations and body decoration, where regulatory compliance with approved colorant status drives sourcing decisions. Water treatment systems incorporate silver-dosed media and coatings to inhibit biofilm formation in filtration units and storage vessels. Printed electronics and conductive ink formulations rely on silver particles or flakes. These materials produce conductive traces on flexible substrates. In biotechnology and pharmaceutical manufacturing, silver-based surface treatments are applied to equipment and wound-contact materials to reduce microbial load. Silver is supplied as powder, flakes, granules, colloidal dispersions, and foil, with particle size and morphology specified to application requirements. Grades include technical, pharmaceutical-grade, and cosmetic-grade material. Colloidal silver concentrations and powder mesh sizes vary by end-use, and buyers typically specify purity at 99.9% or higher for electronics and pharmaceutical applications to ensure performance and safety. Contact us for supply of Silver Request Quote

Other Names (Synonyms)

element 47 | Argentum | Silver atom | Colloidal silver | Silver, colloidal | Silver metal | Algaedyn | Silber | E174

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point960.5 °C
Boiling Point~2000 °C (approx)
Density10.49 g/cm³ @ Temp: 15 °C
Flash Point232 °F
AppearanceSilver is a white lustrous metal that is extremely ductile and malleable.
ColorYellow
OdorOdorless
Formwool
Water Solubilityinsoluble
Vapor Pressure0.05 ( 20 °C)
Refractive Indexn 20/D 1.333
pH0.5 (20°C in H2O)

Safety & Handling

Warning
GHS08· Health HazardGHS09· EnvironmentGHS07· Irritant

Hazard Statements

H317May cause an allergic skin reaction
H320Causes eye irritation
H360May damage fertility or the unborn child
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H373May causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P391Collect spillage.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code71069110
UN Number3264
ADR Class8
Packing GroupIII
Storage Class13 - Non Combustible Solids
WGK (Germany)3