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Silver nitrate

description Chemical Properties Uses Reactions Synthesis Toxicity

CAS No. 7761-88-8
Chemical Name: Silver nitrate
Synonyms: argerol;Titripur?;BETZ 0207;Silbernitrat;caswellno737;lunarcaustic;Silbernitrat8;Lunar caustic;Silver nitrat;nitratodeplata
CBNumber: CB2280970
Molecular Formula: AgNO3
Formula Weight: 169.87
MOL File: 7761-88-8.mol
Silver nitrate Property
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
PH: 5.4-6.4 (100g/l, H2O, 20℃)
Water Solubility : 219 g/100 mL (20 ºC)
Sensitive : Light Sensitive
Merck : 14,8518
CAS DataBase Reference: 7761-88-8(CAS DataBase Reference)
NIST Chemistry Reference: silver(I) nitrate(7761-88-8)
EPA Substance Registry System: Nitric acid silver(1+) salt(7761-88-8)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
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
F : 8
TSCA : Yes
HazardClass : 5.1
PackingGroup : II
Hazardous Substances Data: 7761-88-8(Hazardous Substances Data)
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H272 May intensify fire; oxidizer Oxidising liquids;Oxidising solids Category 2
Category 3
Danger
Warning
P210, P220, P221P280, P370+P378,P501
H290 May be corrosive to metals Corrosive to Metals Category 1 Warning P234, P390, P404
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H303 May be harmfulif swallowed Acute toxicity,oral Category 5 P312
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501
H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P220 Keep/Store away from clothing/…/combustible materials.
P221 Take any precaution to avoid mixing with combustibles/…
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P321 Specific treatment (see … on this label).
P391 Collect spillage. Hazardous to the aquatic environment
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313 IF SKIN irritation occurs: Get medical advice/attention.
P337+P313 IF eye irritation persists: Get medical advice/attention.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.
P406 Store in corrosive resistant/… container with a resistant inner liner.
P501 Dispose of contents/container to..…

Silver nitrate Chemical Properties,Usage,Production

description
Silver 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 Properties
It 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.
Uses
Silver 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.
Reactions
Silver 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.
Synthesis
Synthesis 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 ↑
Toxicity
It 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 Properties
Colorless or white solid
General Description
A colorless or white crystalline solid becoming black on exposure to light or organic material.
Air & Water Reactions
Water soluble.
Reactivity Profile
Silver 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 Hazard
Concentrated 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 Hazard
Behavior in Fire: Increases flammability of combustibles.
Silver nitrate Preparation Products And Raw materials
Raw materials
Nitrogen BISMUTH SULFATE Silver sulfate Nitric acid Silver
Preparation Products
2-TERT-BUTYLPYRIDINE-4-CARBONITRILE PHTHALAMIC ACID Docetaxel 2-tert-Butylpyridine-4-carboxylic acid ,97% Oxaliplatin Acetylpyrazine Faropenem sodium hemipentahydrate 1-(BROMOMETHYL)ISOQUINOLINE HYDROBROMIDE 2-(Bromomethyl)benzoic acid UV-photoxidation degradation film containing FeDBC photosensitize 1-ETHYL-3-METHYLIMIDAZOLIUM DICYANAMIDE Sodium edetate 2-Methyl-2-pentenoic acid Silver oxide 3-FLUOROQUINOLINE-4-CARBOXYLIC ACID Potassium dicyanoargentate Silver sulfate Prostaglandin E1 1,3-Dihydroxyadamantane Silver cyanide tert-Butyl nitrite 5-Phenylthiophene-2-carboxylic acid
Silver nitrate Suppliers      Global( 245)Suppliers     
Supplier Tel Fax Email Country ProdList Advantage
Hysén on Hao Fine Chemical Co., Ltd. 021-66058261/63812598/18301703451
021-63803113 haosensh3113@aliyun.com China 20 60
Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333
021-50323701 sale@aladdin-e.com China 25125 65
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96831 76
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30314 84
Beijing dtftchem Technology Co., Ltd. 13651141086; 86(10)60275028、60275820
86 (10) 60270825 dtftchem@sina.com China 3437 62
Energy Chemical 021-58432009 / 400-005-6266
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Beijing Ouhe Technology Co., Ltd +86-10-4006331231;+86-10-51280831;+86-10-82967028
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Jia Xing Isenchem Co.,Ltd 0573-85280080,15157346371
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Secco work (Beijing) chemical technology co., LTD 010-69755668;
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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) COLOPHONY LUMPS DICHLOROPHENOLINDOPHENOL TABLETS KARL FISCHER REAGENT TITRANT 2 LUCIFERIN, SODIUM SALT ULTRA PURE GRADE SOY PEPTONE GMOFREE ANIMAL FREE BACT. GR STREPTOZOTOCIN ULTRA PURE GRADE 0.01mol/l-Silver Nitrate Solution 0.02mol/l-Silver Nitrate Solution 0.1mol/l-Silver Nitrate Solution SILVER NITRATE BIOXTRA Silver nitrate for analysis EMSURE ACS,ISO,Reag. Ph Eur SILVER NITRATE PLANT CELL*CULTURE TE SILVER NITRATE, ACS REAGENT, 99+% Silver nitrate≥ 99.0% (Titration) Assay-isotopic standard for silver Silver Nitrate, 0.1 N Volumetric Solution Silver Nitrate, 0.10 Normal (N/10) Titripur? Silver Nitrate Solution, 0.1N Silver Nitrate, Reag. Ph. Eur. reag. ISO Silver Nitrate, Meets analytical specification of Ph. Eur. BP, USP Silver nitrate, For ACS analysis Silver Nitrate Standard Solution, 1mL = 1mg Chloride Silver nitrate, For AAS analysis Silver Nitrate, DILUT-IT? Analytical Concentrate, 0.1N, 1/10 equiv. = 16.99g AgNO nitratodeplata Nitric acid silver salt Nitric acid silver(1+) salt Nitric acid silver(I) salt Nitricacid,silver(1+)salt nitricacidsilver(1)salt nitricacidsilver(1+)salt nitricacidsilver(1++)salt nitricacidsilver(i)salt Silbernitrat Silver mononitrate Silver saltpeter Silver(1+) nitrate silver(1+)nitrate Silver(I) nitrate (1:1) silver(i)nitrate(1:1) silvermononitrate utssilveratorwatertreatmentunit Silver ICP standard solution Fluka Silver Ion standard solution Fluka Silver nitrate 99.8+ % Silver Nitrate BP Silver nitrate solution SilvernitrateACSwhitextl SilvernitratePURATREMwhitextl
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