Silver iodide
Description References- Product Name
- Silver iodide
- CAS No.
- 7783-96-2
- Chemical Name
- Silver iodide
- Synonyms
- AgI;neosilvol;neosiluol;PREMION|R;Iodosilver;ver iodide;SILVER IODIDE;SILVER(I) IODIDE;silvermonoiodide;silver(1+)iodide
- CBNumber
- CB3854334
- Molecular Formula
- AgI
- Formula Weight
- 234.77
- MOL File
- 7783-96-2.mol
Silver iodide Property
- Melting point:
- 557°C
- Boiling point:
- 1506°C
- Density
- 5.68 g/mL at 25 °C (lit.)
- RTECS
- VW4450000
- solubility
- insoluble in acid solutions
- form
- Solid
- Specific Gravity
- 6.01
- color
- Yellow
- Odor
- odorless
- Water Solubility
- 0.03 mg/L
- Sensitive
- Light Sensitive
- Crystal Structure
- Cubic, Sphalerite Structure - Space Group F(-4)3m
- Merck
- 14,8516
- Solubility Product Constant (Ksp)
- pKsp: 16.07
- Exposure limits
- ACGIH: TWA 0.01 ppm
- Stability:
- Stability Light-sensitive. Incompatible with strong oxidizing agents.
- CAS DataBase Reference
- 7783-96-2(CAS DataBase Reference)
- NIST Chemistry Reference
- Silver iodide(7783-96-2)
- EPA Substance Registry System
- Silver iodide (AgI) (7783-96-2)
Safety
- Risk Statements
- 36/37/38-53
- Safety Statements
- 22-24/25
- RIDADR
- UN 3077 9 / PGIII
- WGK Germany
- 3
- F
- 8
- TSCA
- Yes
- HazardClass
- 9
- HS Code
- 28432900
- Hazardous Substances Data
- 7783-96-2(Hazardous Substances Data)
N-Bromosuccinimide Price
- Product number
- 226823
- Product name
- Silver iodide
- Purity
- 99%
- Packaging
- 25g
- Price
- $180
- Updated
- 2024/03/01
- Product number
- 204404
- Product name
- Silver iodide
- Purity
- 99.999% trace metals basis
- Packaging
- 10g
- Price
- $152
- Updated
- 2024/03/01
- Product number
- 011419
- Product name
- Silver iodide, 99.9% (metals basis)
- Packaging
- 25g
- Price
- $162
- Updated
- 2024/03/01
- Product number
- 011419
- Product name
- Silver iodide, 99.9% (metals basis)
- Packaging
- 100g
- Price
- $458
- Updated
- 2023/06/20
- Product number
- 93-4714
- Product name
- Silver iodide (99.9%-Ag)
- Packaging
- 10g
- Price
- $64
- Updated
- 2024/03/01
Silver iodide Chemical Properties,Usage,Production
Description
Silver iodide (AgI) precipitates as a yellow, odor- and tasteless solid. Silver iodide acts as a very effective nucleus for the formation of ice crystals. Silver iodide has an important advantage over mercury as a subject for study of electrochemical properties of interfaces. It is also used as a solid lubricant for power contacts. It is also used as a local antiseptic.
References
[1] B. Vonnegut, The Nucleation of Ice Formation by Silver Iodide, Journal of Applied Physics, 1947, vol. 18, 593
[2] J. Lyklema and J. Th. G. Overbeek, Electrochemistry of silver iodide the capacity of the double layer at the silver iodide-water interface, Journal of Colloid Science, 1961, col. 16, 595-608
[3] Sylva Arnell and Gunnar Andersson, Silver Iodide as a Solid Lubricant for Power Contacts, Proceedings of the Forty-Seventh IEEE Holm Conference on Electrical Contacts, 2001
Chemical Properties
Yellow Crystalline Powder
Physical properties
Light yellow hexagonal crystals or powder; darkens on exposure to light; density 5.68 g/cm3 ; melts at 558°C; vaporizes at 1,506°C; insoluble in water, most acids and ammonium carbonate solution; moderately soluble in concentrated solutions of alkali chloride, bromide, and thiosulfate; readily soluble in solutions of alkali cyanides, iodides and in hot concentrated hydriodic acid.
Uses
In cloud precipitation (rain-making).
Uses
Silver iodide is a yellow powder formed by the combination of a soluble iodide combined with silver nitrate. Silver iodide could also be formed by exposing metallic silver to the fumes of bromine as in the daguerreotype process. This was the primary halide used for all of the 19th century camera processes until the introduction of the silver bromide gelatin plate. With the exception of the daguerreotype, all silver iodide processes relied on physical development using a reducing agent such as gallic acid, pyrogallic acid, or ferrous sulfate, an acid restrainer, and excess silver.
Uses
Used in medicine for its caustic, astringent and antiseptic effects. Used in photography, and in the estimation of silver. Through heterogeneous nucleation, it is used in cloud seeding, relying on its beta-AgI crystal structure being similar to that of Ice.
Definition
T3DB: Silver iodide is an iodide of silver. It is a photosensitive solid used in photography, as an antiseptic in medicine, and in rainmaking. 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.
Preparation
Silver iodide is prepared by adding a solution of sodium or potassium iodide to a hot solution of silver nitrate: Ag+ (aq) + Iˉ (aq) → Ag I (s) The precipitate is washed with boiling water. The preparation is done in the dark under ruby red light.
Hazard
Silver iodide may cause irritation and psoriasis, and the main hazards encountered in the use and handling of silver iodide arise from its toxicological properties. It is toxic by a variety of routes (i.e. inhalation, ingestion and dermal contact) and exposures may include rashes, conjunctivitis, psoriasis (permanent greyish-grey discolouration of the skin, conjunctiva, and internal organs), headache, fever, hypersensitivity reactions, laryngitis and bronchitis.
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.
Flammability and Explosibility
Non flammable
Silver iodide Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Silver iodide manufacturers
- Product
- Silver iodide 7783-96-2
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99.91%
- Supply Ability
- 200000
- Release date
- 2024-04-25
- Product
- Silver iodide 7783-96-2
- Price
- US $6.00/KG
- Min. Order
- 1KG
- Purity
- More than 99%
- Supply Ability
- 2000KG/MONTH
- Release date
- 2024-04-19
- Product
- Silver iodide 7783-96-2
- Price
- US $5.00-0.20/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2024-04-02