CompoundList
Sign in
Metals, alloys and elements

Silver

Also known as Argentum, Silver atom, Silver metal

CAS 7440-22-4Formula AgMolar mass 107.87 g/molEC 231-131-3
GHS signal word: Warning. Pictograms: Serious health hazard 86 suppliers listed Drug substance
Get quotes Compare 86 suppliers
Element with atomic number and standard atomic weight

Key facts

What buyers check first

All properties
Appearance
White metal, face-centered cubic structure
Melting point
960.5 °C
Boiling point
Ca. 2000
Density
Relative density (water = 1): 10.5
Solubility
INSOL IN HOT OR COLD WATER, ALKALI, SOL IN NITRIC ACID, HOT SULFURIC ACID, POTASSIUM CYA…
HS code
710691
Category
Metals, alloys and elements
UN number
UN 3077
Illustrative photo, white powder in small glass vials on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Silver?

Plain description, key identifiers and synonyms

Silver(0) is an elemental silver. It has a role as an Escherichia coli metabolite.

Silver is a chemical element with symbol Ag and atomic number 47.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
silver
CAS number
7440-22-4 CAS number cross-checked
EC numbers
231-131-3, 628-860-8, 920-159-8
Molecular formula
Ag
UNII
3M4G523W1G
MDL number
MFCD00003397
INCI name
CI 77820, COLLOIDAL SILVER, SILVER
InChIKey
BQCADISMDOOEFD-UHFFFAOYSA-N
InChI
InChI=1S/Ag
SMILES (canonical and isomeric)
[Ag]

Synonyms

  • Argentum
  • Silver atom
  • Silver metal
  • Colloidal silver
  • Silver, colloidal
  • Algaedyn
  • Silber
  • Shell silver
  • Astroflake 5
  • Carey Lea silver
  • Argentum metallicum
  • Degussa 67
  • Degussa 80
  • Silpowder 130
  • argent
  • Silflake 135
  • Jelcon SH 1
  • KS (metal)
  • Nanosilver
  • Dotite XA 208
  • Metz 25B
  • Silver colloidal
  • D 25 (metal)
  • TCG 7r
  • Metz 3000-1
Show all 38 synonyms
  • CI 77820
  • FA 312
  • LS 500
  • silver(0)
  • C.I. 77820
  • Silver (e 174)
  • INS NO.174
  • Germproof
  • silver colloid
  • EmuAid
  • emuaidMAX
  • Ave Silvergen
  • SilvaPlex Wound

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
White metal, face-centered cubic structureexp.
Melting point
960.5 °Cexp.
Boiling point
Ca. 2000exp.
Density
Relative density (water = 1): 10.5exp.
Solubility
INSOL IN HOT OR COLD WATER, ALKALI, SOL IN NITRIC ACID, HOT SULFURIC ACID, POTASSIUM CYANIDE /Aqueous/exp.
Vapour pressure
1 mmHg at 2475 °Fexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
107.87 g/molcalc.
Exact mass
106.9051 Dacalc.
LogP (octanol/water)
0calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
1calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H361fSuspected of damaging fertility.
  • H373May cause damage to organs through prolonged or repeated exposure.
Precautionary statements (7)
  • P203Obtain, read and follow all safety instructions before use.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3077
Transport hazard class
9
Packing group
III

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Silver suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 86 suppliers
30 of 30 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

86 suppliers in 13 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Silver price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

For coinage, most frequently alloyed with copper or gold, for manuf tableware, mirrors, jewelry, ornaments, for electroplating, for making vessels and apparatus used in manuf medicinal chemicals, in processing foods and beverages, in handling organic acids, as catalyst in hydrogenation and oxidation processes, as ingredient of dental alloys.

Brazes and solders, coinage, jewelry, tableware, photography, photochromic glass, electrical contacts, silver thick films, electroplating, electroless plating, magnetron sputtered reflective coatings, dental amalgam, bearings in jet engines, giant magnetoresistance.

Electrical contacts, high capacity silver-zinc & silver-cadmium batteries.

Potential markets ... silver nanoparticles in electronics and medicines.

Read more

(Nano oxides and Metals).

Products utilizing the antimicrobial properties of silver (Ag) nanoparticles (include) surgical tool coatings, surface and personal sanitizing sprays, toothbrushes, and infant pacifiers.

Industrial uses: Semiconductor and photovoltaic agent, Conductive agent, Other, Binder, Alloys, Adhesion/cohesion promoter, Intermediate.

Consumer uses: Intermediate, Emulsifier, Catalyst, Semiconductor and photovoltaic agent, Conductive agent, Alloys, Other.

Use classes: Inorganic substances, Food additives, Cosmetics.

Cosmetic ingredient, INCI name CI 77820(colorant)

Roles

  • Escherichia coli metabolite
  • bacterial metabolite
  • metabolite
  • prokaryotic metabolite

Functional uses

  • Biocide
  • Catalyst
  • Deodorizer
  • Dye
  • Plating agent
  • Softener and conditioner
  • Surface modifier

Cosmetic functions

  • Antimicrobial
  • Colorant
  • Deodorant
  • Skin conditioning - miscellaneous
  • Slip modifier

Pharmacology

Silver is a metallic element with atomic symbol Ag, atomic number 47, and atomic weight 107.8682.

How it is made

Silver is ... recovered during electrolytic refining of copper.

Cyanide process: Cyanide solution is mixed with zinc dust to precipitate the silver.

Chlorination process: roasted ore with chlorides followed by a hot brine leach and subsequent precipitation of the silver on copper.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 047-004-00-9

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: Silver (nano) [1 nm < particle diameter ≤ 100 nm] Silver (massive) [particle diameter ≥ 1 mm], Ref no: 1727, Annex ref: II/1727
  • EU Cosmetics Regulation Annex III, restricted in cosmetics
    Name: Silver, Ref no: 379, Annex ref: III/379
  • EU Cosmetics Regulation Annex IV, allowed colourant
    Name: CI 77820, Ref no: 142, Annex ref: IV/142
  • Active ingredient in FDA approved drug labels
  • Food additive

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Silver is traded under.

HS 7106.91Indicative HS code

Unwrought

Our trade statistics cover HS chapters 25 to 40 (minerals, chemicals, plastics and rubber). This code is in chapter 71, natural, cultured pearls, which is not included yet.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Silver is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Silver, based on the data on this page

What is Silver?

Silver(0) is an elemental silver. It has a role as an Escherichia coli metabolite.

What is the CAS number of Silver?

The CAS registry number of Silver is 7440-22-4.

What is the molecular formula and weight of Silver?

The molecular formula of Silver is Ag and its molar mass is 107.87 g/mol.

What is Silver used for?

For coinage, most frequently alloyed with copper or gold, for manuf tableware, mirrors, jewelry, ornaments, for electroplating, for making vessels and apparatus used in manuf medicinal chemicals, in processing foods and beverages, in handling organic acids, as catalyst in hydrogenation and oxidation processes, as ingr…

Is Silver hazardous?

Silver carries the GHS signal word "Warning". Main hazards: suspected of damaging fertility, may cause damage to organs through prolonged or repeated exposure. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Silver?

Silver is usually classified under HS code 710691 (Unwrought). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Silver?

CompoundList lists 86 suppliers of Silver in United States, China, India, Germany and 9 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Silver in India?

8 suppliers in India list Silver on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Silver?

Suppliers quote Silver on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Silver

Get quotes for Silver

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Silver
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Silver with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/silver-7440-22-4" title="Silver structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Metals, alloys and elements or HS code 710691

86 suppliers
Free quotes, contact stays private
Get quotes