Basic information
- CAS
7783-90-6- Standard SMILES
[Cl][Ag]- InChIKey
HKZLPVFGJNLROG-UHFFFAOYSA-M- Molecular formula
- AgCl
- Average molar mass
- 143.32 g/mol
Overview
Silver chloride is a chloride of silver that occurs naturally as the mineral chlorargyrite. It is used to make photographic paper and pottery glazes. It is also found in stained glass colorants, bandages, and other wound healing products, and may be used as an antidote to mercury poisoning. Silver is a metallic element with the chemical symbol Ag and atomic number 47. It occurs naturally in its pure, free form, as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. (L808, L809, L816)
Names & identifiers
- Preferred name
- Silver Chloride
- IUPAC
- chlorosilver
- English name
- Silver chloride
- Molecular formula
- AgCl
- Molecular weight
- 143.32
Names & synonyms
Show more names
Database identifiers
- CAS
7783-90-6- PubChem CID
- 24561
- EC Number
- 232-033-3
Properties
Computed structural properties
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 0
- Heavy atoms
- 2
- Formal charge
- 0
- Complexity
- 2
Experimental & physicochemical properties
Physical Description
Other Solid
White solid; Darkened by light; Water solubility = 1.93 mg/L at 25 deg C; [Merck Index] Powder with lumps; [Aldrich MSDS] Chloride salts of silver are insoluble; [Nordberg, p. 19]
Physicochemical properties
- Melting point
- 455 °C · 455 °C (lit.)
- Boiling point
- 1550 °C · 1550 °C
- Density
- 5.56 · 5.56
- vapor pressure
- 1 mm · 1 mm Hg ( 912 °C)
- refractive index
- 2.071 · 2.071
- Flash point
- 1550 °C · 1550°C
- storage temp.
- 5 °C · Store at +5°C to +30°C.
- solubility
- 0.00188 g/l · 0.00188g/l
- form
- beads
- color
- Yellow
- Specific Gravity
- 5.56 · 5.56
- Water Solubility
- 1.93 mg/L · 1.93 mg/L (25 ºC)
- Thermal Conductivity
- 1.134 W/ · 1.134 W/(m·K) (crystal)
- Specific Heat Capacity
- 0.35 J/ · Cp(crystal): 0.35 J/(g·K), at 25℃
- Crystal Structure
- NaCl type
- Sensitive
- Light Sensitive
- crystal system
- Cube
- Merck
- 14 · 14,8509
- Solubility Product Constant (Ksp)
- 9.75 · pKsp: 9.75
- Space group
- 3 m · Fm3m
- Lattice constant
- a/nm
- Symbol(GHS)
- 5 · GHS05,GHS09
- Signal word
- Warning
- Hazard statements
- 290 · H290-H410
- Precautionary statements
- 234 · P234-P273-P390-P391-P501
- PPE
- 95 · Eyeshields, Gloves, type N95 (US)
- Hazard Codes
- N
- Risk Statements
- 50 · 50/53-50
- Safety Statements
- 24 · 24/25-61-60
- RIDADR
- 3077 · UN 3077 9 / PGIII
- WGK Germany
- 3 · 3
- RTECS
- 3563000 · VW3563000
- F
- 8 · 8
- TSCA
- TSCA listed
- HS Code
- 2843 · 2843 29 00
- HazardClass
- 9 · 9
- Storage Class
- 8 B · 8B - Non-combustible corrosive hazardous materials
- Hazard Classifications
- 1 Aquatic · Aquatic Acute 1Aquatic Chronic 1Met. Corr. 1
- Toxicity
- 50 orally · LD50 orally in Rabbit: > 5110 mg/kg
- REACH Registrations
- Active
- Limited Quantities
- 5 L · 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
- Excepted Quantities
- Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 12.6% (50 of 398) of reports.
Warning
H290 (18.1%): May be corrosive to metals [Warning Corrosive to Metals]
P234, P261, P271, P273, P304+P340, P319, P390, P391, P403+P233, P405, P406, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 398 reports by companies from 17 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Silver chloride (AgCl)
Silver chloride (AgCl) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silver chloride (AgCl) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 15-05-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/15005
Silver chloride (AgCl): Does not have an individual approval but may be used under an appropriate group standard
Safety & protection
Protective Action Criteria (PAC)
0.20 [mg/m3]
170 [mg/m3]
1000 [mg/m3]
Toxicology
Treatment
EYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration.
Health Effects
Silver itself is not toxic to humans, but most silver salts are. In large doses, silver and compounds containing it can be absorbed into the circulatory system and become deposited in various body tissues, leading to argyria, which results in a blue-grayish pigmentation of the skin, eyes, and mucous membranes. Argyria is rare, and although, so far as known, this condition does not otherwise harm a person's health, it is disfiguring and usually permanent. Mild forms of argyria are sometimes mistaken for cyanosis. (L809)
Toxicity Summary
Metallic silver is oxidized and may deposit in the tissues, causing arygria. The silver ion is known to inhibit glutathione peroxidase and NA+,K+-ATPase activity, disrupting selenium-catalyzed sulfhydryl oxidation-reduction reactions and intracellular ion concentrations, respectively. Silver nanoparticles are believed to disrupt the mitochondrial respiratory chain, causing oxidative stress, reduced ATP synthesis, and DNA damage. (L808, A243, A244, A245, A246)
Signs and Symptoms
Exposure to high levels of silver for a long period of time may result in a condition called arygria, a blue-gray discoloration of the skin and other body tissues. Argyria is a permanent effect but does not appear to be harmful to health. Exposure to high levels of silver in the air has resulted in breathing problems, lung and throat irritation, and stomach pains. Skin contact with silver can cause mild allergic reactions such as rash, swelling, and inflammation in some people. (L808)
Safety data
- F
- 8
- PPE
- Eyeshields, Gloves, type N95 (US)
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- VW3563000
- ridadr
- UN 3077 9 / PGIII
- hs_code
- 2843 29 00
- Toxicity
- LD50 orally in Rabbit: > 5110 mg/kg
- risk_code
- 50/53-50
- Signal word
- Warning
- Symbol(GHS)
- GHS05,GHS09
- hazard_code
- N
- safety_code
- 24/25-61-60
- hazard_class
- 9
- Storage Class
- 8B - Non-combustible corrosive hazardous materials
- Hazard statements
- H290-H410
- Limited Quantities
- 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
- Excepted Quantities
- Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
- REACH Registrations
- Active
- Hazard Classifications
- Aquatic Acute 1Aquatic Chronic 1Met. Corr. 1
- Precautionary statements
- P234-P273-P390-P391-P501
Chemistry & industry
Pharmacology
Metabolism/Metabolites
Silver and its compounds can be absorbed via inhalation, while silver compounds can also be absorbed orally and dermally. It distributes throughout the body in the blood, particularily to the liver. Insoluble silver salts are transformed into soluble silver sulfide albuminates, bind to amino or carboxyl groups in RNA, DNA, and proteins, or are reduced to metallic silver by ascorbic acid or catecholamines. Metallic silver is oxidized and may deposit in the tissues, causing arygria. Silver is eliminated primarily in the faeces. (L808)
Uses & manufacturing
Uses
Used in silver plating and to make antiseptic silver preparations; [Merck Index] Various active product registrations in the US; [NPIRS] Pesticide products containing silver are used as bactericides in filters (to improve taste and odor of municipally treated water) and as algicides in swimming pools; [EPA REDs]
Electroplating [Category: Plate]
Silver chloride is used to make photographic paper and pottery glazes. It is also found in stained glass colorants, bandages, and other wound healing products, and may be used as an antidote to mercury poisoning. (L816)
General Manufacturing Information
Computer and Electronic Product Manufacturing
Silver chloride (AgCl): ACTIVE
Applications
UsesSilver chloride is used in silver plating and to obtain pure silver. The salt also finds applications in photography and optics; in photochromic glass; and in electrodes and batteries. It is used to make antiseptic silver solution. It occurs as the mineral cerargyrite.
UsesIn silver plating, in making antiseptic silver preparations.
UsesFound in nature as horn silver, this white powder is made by the combination of a soluble chloride and silver nitrate. Silver bromide could also be formed by exposing metallic silver to the fumes of bromine as in the daguerreotype process. It is soluble in sodium thiosulfate, potassium bromide solutions, and strong ammonia. This silver halide was the first to be observed to darken spontaneously by exposure to light. Silver chloride formed the basis of the photogenic drawing, salted paper print, albumen print, collodion-chloride POP, gelatin chloride POP, and gaslight paper.
UsesUsed in photographic films, to coat and silver glass, as an antiseptic, and to absorb infrared light in lenses.
UsesEmployed in Silver plating. Owing to its characteristic of reversible reduction to silver metal, it is used in photochromic lenses. Used as a cathode in sea water activated batteries. In electrochemistry, silver chloride electrode is used for potentiometric measurements. It serves as an antidote for mercury poisoning, and eliminates mercury from body. It is used in glass manufacturing industry. It is useful in the production of bandages, wound healing products and inglaze lustre, personal deodorant products, as well as for long term preservation of drinking water in water tanks; its pharmaceutical composition finds use as an antibacterial agent.
Preparation methods
PreparationSilver chloride is prepared by slowly adding an alkali metal chloride solution to a hot solution of silver nitrate. The solution mixture is boiled: Ag+ (aq) + Cl¯ (aq) → AgCl (s) The precipitate is washed with hot water. The product is purified by dissolving in ammonia solution, filtering out any insoluble residues, and then adding hydrochloric acid to reprecipitate silver chloride. Preparation should be carried out in the dark in ruby red light.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers100 total
Additional notes
DefinitionT3DB: Silver chloride is a chloride of silver that occurs naturally as the mineral chlorargyrite. It is used to make photographic paper and pottery glazes. It is also found in stained glass colorants, bandages, and other wound healing products, and may be used as an antidote to mercury poisoning. Silver is a metallic element with the chemical symbol Ag and atomic number 47. It occurs naturally in its pure, free form, as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite.
Related reactions
Compound notes
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