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Silver nitrate

Silver nitrate Suppliers list
Company Name: Shanghai Bojing Chemical Co.,Ltd.
Tel: +86-21-37122233
Products Intro: Product Name:Silver nitrate
Purity:99% Package:1kg;25kg;200kg Cardboard barrels Remarks:colorless crystalline
Company Name: Hysén on Hao Fine Chemical Co., Ltd.  Gold
Products Intro:Product Name:Silver nitrate
Purity:99.8% Package:100g;500g;1KG;10KG
Company Name: Shanghai Aladdin Bio-Chem Technology Co.,LTD  Gold
Products Intro:Product Name:Silver nitrate
Purity:AR,99.8% Package:5999RMB/500G
Company Name: J & K SCIENTIFIC LTD.  
Tel:400-666-7788 +86-10-82848833;
Products Intro:Product Name:Silver nitrate, for analysis ACS, 99+%
Purity:99+% Package:2.5KG, 50GR, 100GR, 250GR, 500GR
Company Name: Alfa Aesar  
Tel:400-610-6006; 021-67582000
Products Intro:Product Name:Silver nitrate, Acculute Standard VoluMetric Solution, Final Concentration 0.282N
Package:1unit Remarks:088615
Silver nitrate Basic information
description Chemical Properties Uses Reactions Synthesis Toxicity
Product Name:Silver nitrate
Synonyms:Silver nitrate concentrate;Silver nitrate ACS reagent, >=99.0%;Silver nitrate anhydrous, 99.999%;Silver nitrate puriss. p.a., >=99.5% (AT);Silver nitrate puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., >=99.8%;Silver nitrate ReagentPlus(R), >=99.0% (titration);ACETONE FOR GC- CAPILLARY GRADE;BUFFER SOLUTION PH10.012+/-0.010(110012)
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Mol File:7761-88-8.mol
Silver nitrate Structure
Silver nitrate Chemical Properties
Melting point 212 °C (dec.)(lit.)
Boiling point 444°C
density 4.35 g/mL at 25 °C(lit.)
vapor density 5.8 (vs air)
Fp 40 °C
storage temp. 2-8°C
solubility H2O: soluble
form Solid
color White
PH5.4-6.4 (100g/l, H2O, 20℃)
Water Solubility 219 g/100 mL (20 ºC)
Sensitive Light Sensitive
Merck 14,8518
CAS DataBase Reference7761-88-8(CAS DataBase Reference)
NIST Chemistry Referencesilver(I) nitrate(7761-88-8)
EPA Substance Registry SystemNitric acid silver(1+) salt(7761-88-8)
Safety Information
Hazard Codes C,O,N,Xi
Risk Statements 34-50/53-8-36/38-51/53-52/53-35-10-40-20/22-22
Safety Statements 26-45-60-61-36/37/39-27-57-37
RIDADR UN 1493 5.1/PG 2
WGK Germany 3
RTECS VW4725000
HazardClass 5.1
PackingGroup II
HS Code 28432100
Hazardous Substances Data7761-88-8(Hazardous Substances Data)
MSDS Information
ACROS English
SigmaAldrich English
ALFA English
Silver nitrate Usage And Synthesis
descriptionSilver nitrate is the most important silver compound and is used extensively for the manufacture of silver halide photosensitive material. Pure silver nitrate crystal is stable to light and is easily to be reduced to black metallic silver in the presence of organic matter. Wet silver nitrate and silver nitrate solution can be easily subject to decomposition upon light. Silver nitrate is a kind of oxidizing agent and can cause protein coagulation with corrosive effect on the human body. It has a relative density of 4.35 (19/4 ℃) and a melting point of 212 ℃. Upon being heated to 444 ℃, it can be decomposed into metallic silver, nitrogen dioxide and oxygen. It can be heated and melt into a light yellow liquid in a porcelain crucible and then condensed into white crystals after being cold. If you further increase the temperature, then it is gradually decomposed and can generate brown oxide vapor at the same time. When electric current passes through the silver nitrate solution, metallic silver is deposited on the negative electrode. Silver nitrate is easily soluble in ammonia and water, slightly soluble in alcohol, insoluble in acetone, benzene, and almost insoluble in concentrated sulfuric acid. Its aqueous solution was acidic (pH = 5~6). Silver nitrate, in the aqueous solution of ammonia, meets glucose and formaldehyde can be reduced to generate "silver mirror." Zinc, cadmium, tin, lead, copper and other metals are easy to replace the metallic silver in the nitrate silver solution. Silver nitrate, when being mixed with sulfur, can lead to explosion upon being beaten by hammer.
Silver nitrate is an inorganic silver salt and can dissociate silver ions with sterilization, corrosion, erosion, and convergence effect. Its dilute solution has antibacterial and astringent effect while its concentrated solution has a corrosive effect. Topical application of silver ion can bind with bacterial protein to form silver protein precipitate with bactericidal effect. It can be used for treating dentin hypersensitivity, mucosal ulceration, early caries and cavity disinfection.
The above information is edited by the chemicalbook of Dai Xiongfeng.
Chemical PropertiesIt is colorless transparent orthorhombic crystal flake. It is easily soluble in water and ammonia, soluble in ether and glycerin, slightly soluble in ethanol, but almost insoluble in concentrated nitric acid. Its aqueous solution exhibits weak acidity.
UsesSilver nitrate can be used as the raw material of the silver salt, photographic materials, preservatives, and catalyst and also used for silvering, mirror production, etc.
It can be used for analysis reagents.
It can be used for the manufacture of movie film, X-ray photographic film and other photographic emulsions photosensitive material. In the field of electronics industry, it can be used for the manufacture of conductive adhesives, gas purification agents, as well as silvering of electronic components. It can also be used for the silvering material of mirror production and thermal glass liner, voltage-sharing coat and gloves for electronic work. It can also be used for the silvering of other crafts. Battery industry applied it for the production of silver-zinc battery. In the field of medicine, it can be used for sterilization, corrosive reagent. Daily chemical industry used it for the manufacturing of dyed hair shampoo. It can also be applied to the manufacture of other silver catalyst.
It can be used for the cyanide-free silver-plating such as being the major salt of thiosulfate silvering, hydrochloric acid silvering, imino ammonium di-sulphonate silvering and sulphosalicylic acid silvering. It is also the source of the silver ion. The content of the silver nitrate has certain effect on the conductivity, dispersion property and sedimentation speed of the silver-plating solution. The general usage amount is about 25~50 g/L.
ReactionsSilver nitrate can have precipitation reaction and coordination reaction with a series of reagents.
It can react with hydrogen sulfide to form a black silver sulfide Ag2S precipitate.
It can react with potassium chromate, to form a red-brown silver chromate Ag2CrO4 precipitate.
It can react with disodium hydrogen phosphate to form a yellow silver phosphate Ag3PO4 precipitate.
It can react with halogen ion to form silver halide AgX precipitate.
It can react with alkali to form a brown-black silver oxide Ag2O precipitate.
It can react with NH3, CN-, SCN-, S2O3, etc., to form a variety of complex ions, such as: Ag (NH3) 2OH, Ag [Ag (CN) 2], [Ag (SCN) 2]-, [Ag (S2O3) 2] 3-and so on.
It can react with oxalate ions to form white oxalate ion Ag2C2O4 precipitate.
Silver nitrate is a moderately strong oxidant that can be reduced by a number of moderately strong or strong reducing agent to become elemental silver.
Hydrazine (N2H4) and phosphorous acid and reduce Ag+ to metallic silver with the reaction equation: (1) N2H4 + 4AgNO3─ → 4Ag + N2 + 4HNO3; (2) H3PO3 + 2AgNO3 + H2O─ → 2Ag + H3PO4 + 2HNO3
The above information is edited by the chemicalbook of Dai Xiongfeng.
SynthesisSynthesis method: put the silver bar into the reactor, add distilled water first, followed by adding concentrated nitric acid to make the concentration of nitric acid be about 60% to 65%. Control the heating rate to make sure that the reaction was not too fierce. Heat to above 100 ℃, maintain the vapor pressure at 0.2 MPa and have the reaction for 2~3 h. Release the nitric oxide gas. The material liquid was pumped to a storage tank, diluted with distilled water to a relative density of 1.6 to 1.7. Cool and stand for 10 h and filter to remove impurities such as AgCl. Send the supernatant into an evaporator for being evaporated under reduced pressure at about pH = 1. Cool, crystallize and apply vacuum drying to obtain the products.
Ag + 2HNO3 → AgNO3 + H2O + NO2 ↑
ToxicityIt is corrosive to the skin and mucous membranes and has convergence effect. Skin, upon contact with silver nitrate, will turn dark upon light and is prone to get inflammation. If the skin is contaminated by silver nitrate, you can use iodine remove graze; if skin get injured upon contact, you can soak in salt water for washing.
Upon working, the production staff should wear masks, cotton overalls, and latex gloves and other protective equipment. The production staff should also do laundry frequently. The production equipment should be sealed with the workshop being ventilated.
Silver nitrate can react with acetylene to generate silver acetylene. Under dry conditions, it will explode upon a slight friction. Therefore, upon equipment maintenance, we should prohibit to bring calcium carbide paste and acetylene gas into the workshop.
Chemical PropertiesColorless or white solid
General DescriptionA colorless or white crystalline solid becoming black on exposure to light or organic material.
Air & Water ReactionsWater soluble.
Reactivity ProfileSilver nitrate is noncombustible but, as an oxidizing agent, can accelerate the burning of combustible materials. If large quantities are involved in a fire or the combustible material is finely divided, an explosion may result. Prolonged exposure to fire or heat may result in an explosion. Toxic oxides of nitrogen are produced in fires. Light sensitive. Mixtures with alkyl esters may explode owing to the formation of alkyl nitrates. Mixtures with phosphorus, tin(II) chloride, or other reducing agents may react explosively [Bretherick 1979 p. 108-109]. Reacts with acetylene in the presence of ammonia to form silver acetylide, a powerful detonator when dry [Bretherick 1979 p. 198]. Reaction with ethyl alcohol (or other alcohols) may produce silver fulminate, which can explode when disturbed [Bretherick 1979 p. 200]. An intimate mixture of Silver nitrate and magnesium may ignite spontaneously on contact with a drop of water [Bretherick 1979 p. 200]. An explosion occurred when purified phosphine was passed rapidly into a concentrated solution of Silver nitrate [Mellor 3:471 1946-47]. When a mixture of 28% ammonium hydroxide and Silver nitrate solution was treated with a small amount of sodium hydroxide. Black precipitate, silver nitride exploded on stirring [MCA Case History 1554 1968].
Health HazardConcentrated solutions will produce irritation, ulceration, and discoloration of the skin; also causes severe irritation of the eyes. Ingestion will produce violent abdominal pain and other gastroenteric symptoms.
Fire HazardBehavior in Fire: Increases flammability of combustibles.
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