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7440-22-4

Basic Information
CAS No.: 7440-22-4
Name: Silver
Article Data: 1910
Molecular Structure:
Molecular Structure of 7440-22-4 (Silver)
Formula: Ag
Molecular Weight: 107.868
Synonyms: 11000SP;3050HD;3200HD;7000C;A 1500 (metal);AA 0076;AA 0101;AA 0981;AG 3500M;AG 4315C;AG-CO;AGE 09PB;AGIN-WE;AMS300;AX 10C;AY 6080;Ag 103W;Ag 1T;AgNanopaste NPS-J 90;Ag Sphere 2;Ag-C-GS;Ag-E 100;AgC 1561;AgC 156I;AgC 209;AgC 224;AgC 251;AgC 74SE;AgC-B;AgC-H;AgF 5S;Agpure EG 5;Algaedyn;Arctic Silver 3;Argentum;C 0083P;C 200 (metal);CA 2500E;CS 001;CW 7100;Colloidal silver;DP 120H1;Degussa 67;Degussa 80;Dotite XA 208;E 174;EA 0008;EA 295;ECM 100AF4810;ED 6036;EG 20 (metal);EN 4277;EPC 100;Enlight 600;Enlight silver plate 600;Epinall;FA 333;FA 5-1;FA 8-1;Ferro 3349;Finesphere SVND 102;Fordel DC;G 12;G 12(metal);G 13;G 14;G 14 (element);G 17;G 17 (metal);HDY;HXR-Ag;I-ED;Jungindai Takasago 300;KS;KS (metal);L3 (element);LA 113;LS 500;M 1255;M-Dot SS;MF 0102;MF 0106;MFP 3050;MFP 4050;MG 101 (metal);MMC-SF 25;MMC-SF 53;MN 8060;MesoSilver;Metalor K 1332P;Metz 25B;Metz 3000-1;Metz 56;Metz 67;Metz 80;NPS-J;NTX 350WT;Nanomelt AGC-A;Nanopaste NPS-J 90;Nanosilver BG;OK6P;PA 1D;PC 100 (metal);PELCO Conductive Silver 187;PS 652;PUAG 119;Perfect Silver;Powdersafe 1080-01;
EINECS: 231-131-3
Density: 1.135 g/mL at 25 °C
Melting Point: 961 °C
Boiling Point: 2212 °C
Flash Point: 232 °F
Solubility: insoluble in water
Appearance: lustrous soft white metal
Hazard Symbols: DangerousN; ToxicT; HarmfulXn
Risk Codes: 22-38-20/21-10-40-34-23/24/25
Safety: 26-24/25-25-45-36/37/39-23
Transport Information: UN 3264 8/PG 3
PSA: 0.00000
LogP: 0.00000
Synthetic route

silver nitrate

7440-22-4

silver

Conditions
ConditionsYield
With perchloric acid; 2,4-dichlorophenol; phosphododecatungstate In water Kinetics; Irradiation (UV/VIS); irradiated (>320 nm) at pH 1 (HClO4) at 18.3°C for 50 min; ppt. collected, dried, elem. anal.;100%
With hydrogenchloride In ethylene glycol EG (5 ml) heated for 1 h at 145°C with stirring, HCl (0.5 ml, 3 mM soln.) added, stirred for 10 min, EG soln. of Ag compd. (1.5 ml, 94 mMsoln.) and PVP (1.5 ml, 147 mM soln.) added, stored for 1 d; washed, septd., SEM, TEM;95%
With hydrogen; nitric acid In not given byproducts: NH3, NO2(1-); 100 atm., ambient temp., 72 h;15%

silver(I) chloride

7440-22-4

silver

Conditions
ConditionsYield
With (C2H5)2SiH2 byproducts: (C2H5)2SiHCl; addition of AgCl to an excess of (C2H5)2SiH2 and heating under reflux;;100%
With (C2H5)2SiH2 byproducts: (C2H5)2SiHCl; addition of AgCl to an excess of (C2H5)2SiH2 and heating under reflux;;100%
With 2,3,5,6-tetramethyl-1,4-bis(trimethylsilyl)-1,4-diaza-2,5-cyclo-hexadiene In tetrahydrofuran at 20℃; for 18h; Inert atmosphere; Darkness;90%

iron(II) sulphate octahydrate

silver nitrate

7440-22-4

silver

Conditions
ConditionsYield
In water byproducts: Fe(NO3)3, Fe2(SO4)3; addn. of aq. soln. of Fe-salt to aq. soln. of Ag-salt in one portion with vigorous mechanical stirring; reaction temp. is varied from 20 to 80°C; filtn., washing with H2O, air drying at 110 -130°C, electron microscopy to determine the grain size;100%

silver nitrate

A

7697-37-2

nitric acid

B

7440-22-4

silver

Conditions
ConditionsYield
With H nitrate, in dild. soln., is completely reacting with Pd, satd. with H, at 16 °C in 24 hours to Ag and HNO3;;A 100%
B 100%
With H
13126-70-0

silver(I) formate

7440-22-4

silver

Conditions
ConditionsYield
at 20℃; for 90h; Milling;100%
In neat (no solvent) thermic decompn. in presence of a non-oxidizing gas-stream;;
In water formation of mirrors by spraying on 1% aq. AgHCO2-solns. and heating to 100°C;;

potassium nitrososulfonate

silver nitrate

A

7440-22-4

silver

B

14808-79-8

Sulfate

Conditions
ConditionsYield
With water In not given byproducts: N2, N2O, H3O(1+); molar ratio Ag:nitrosodisulphonate=1:2, 2 days (pptn.); elem. anal.;A 100%
B 94.4%
30123-12-7

silver(I)pentafluorobenzene

A

434-90-2

decafluorobiphenyl

B

7440-22-4

silver

Conditions
ConditionsYield
In neat (no solvent) 220°C, 0.04 Torr, 5h;;A 100%
B 100%

silver(I) iodide

7440-22-4

silver

Conditions
ConditionsYield
With dihydrogen peroxide In further solvent(s) redn. boiling in strong soda alcaline soln.;99.9%
With zinc In hydrogenchloride AgI was reacted with Zn in 0.1 M aq. HCl; 5 M aq. HCl added;99%
With formaldehyd In potassium hydroxide redn. in strong alcaline soln. boiling;99%

sodium octahydrotriborate tridioxanate

14701-21-4

silver (I) ion

7440-22-4

silver

Conditions
ConditionsYield
In water room temp.; X-ray diffraction, gravimetric anal.;99%
26042-63-7

silver(I) hexafluorophosphate

446875-38-3

(η1:η6:η1-1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)rhodium(I) hexafluorophosphate

A

(η1:η6:η1-1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)rhodium(II) hexafluorophosphate

B

7440-22-4

silver

Conditions
ConditionsYield
In dichloromethane Rh-complex was treated with AgPF6 in CH2Cl2 for 30 min; filtered;A 99%
B n/a
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  • Conductive Silver Powder(spherical, served for The Unit States) CAS NO.7440-22-4

  • Casno:

    7440-22-4

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    Silver

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  • Conductive Silver Powder(spherical, served for The Unit States) CAS NO.7440-22-4

  • Casno:

    7440-22-4

    Conductive Silver Powder(spherical, served for The Unit States) CAS NO.7440-22-4

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  • Silver

  • Casno:

    7440-22-4

    Silver

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  • Casno:

    7440-22-4

    Silver atomic absorption standard solution

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  • High quality 7440-22-4  Silver

  • Casno:

    7440-22-4

    High quality 7440-22-4 Silver

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    Address:RM.1118,NO.1 Building, Baiyun Tower,Jianggan Area, Hangzhou city, China,310004

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  • Acmec Silver 50g

  • Casno:

    7440-22-4

    Acmec Silver 50g

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  • Casno:

    7440-22-4

    Silver

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    Business Type:Manufacturers

    Tel:+86-0371-87507775

    Address:No 260 Dongming Road,Jinshui District

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  • Silver Brazing Paste Flux

  • Casno:

    7440-22-4

    Silver Brazing Paste Flux

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    Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS

    Xiamen Aeco Chemical Industrial Co., Ltd(same as Aecochem Corp.) An ISO 9001:2015 Certified Company Your Partner in China, a Professional chemical raw material supplier, our

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  • Casno:

    7440-22-4

    Silver

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    Tel:18168326835

    Address:2202 Scientific Research Business Center, Lihu Road, Wuxi 214128 China

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  • Silver

  • Casno:

    7440-22-4

    Silver

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  • Casno:

    7440-22-4

    Silver

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    Address:Room1027,No.Jinyu Road,Pudong

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History

 Silver has been known since ancient times.

Consensus Reports

 Silver and its compounds are on the Community Right-To-Know List. Reported in EPA TSCA Inventory.

Standards and Recommendations

OSHA PEL: Metal, Dust, and Fume: TWA 0.01 mg/m3
ACGIH TLV: TWA (metal) 0.1 mg/m3, (soluble compounds as Ag) 0.01 mg/m3
DFG MAK: 0.1 mg/m3; (salts) 0.01 mg/m3
NIOSH REL: (Silver, metal and soluble compounds) TWA 0.01 mg/m3

Analytical Methods

For occupational chemical analysis use OSHA: #ID-125G or NIOSH: Elements (ICP), 7300; Welding and Brazing Fume, 7200; Elements in Blood or Tissue, 8005; Metals in Urine (ICP), 8310.

Specification

The Silver, with the cas registry number 7440-22-4, is a kind of white glossy metal. This chemical is soluble in nitric acid, hot sulfuric acid while insoluble in water. Besides, it is stable but incompatible with strong acids and strong bases, tartaric acid, oxalic acid. In addition, it will be blackened by contacting with ozone, hydrogen sulfide, sulfur.

Its product categories are including Inorganics; Chemical Synthesis; SilverMetal and Ceramic Science; Catalysis and Inorganic Chemistry; Nanoparticles: Metals and Metal AlloysChemical Synthesis; 47: Ag; Nanoparticles: Metals and Metal AlloysMetal and Ceramic Science; Nanopowders and Nanoparticle Dispersions; SilverNanomaterials; Materials Science; Nanomaterials; Metal and Ceramic Science; Metals; Silver; Elemental AnalysisMetal and Ceramic Science; Analytical/Chromatography; Spectroscopy.

The production method of this chemical is below: Prepare the silver as the raw material and then dissolve it in the nutric acid to make the electrolyte with the component of Ag 50 g/L,HNO3 3~10 g/L; Next add into the electrolytic cell to electrolysis with the temperature of 45℃, cell voltage of 2.5 V, current density cathode of 2.5~2.7 A/cm2. Lastly, have the electrolysis and refining to get the high purified silver products. 

As to its usgae, it is widely applied in many ways. It could be used as the electronic industry material and in the preparation of high purified silver salt and high purified analysis reagents; It could also be used in gelled propellants, catalytic agent, adsorbing material, promoting agent, and then in filter, carbon-film potentiometer, solid tantalum capacitor, Darlington and heating element; In addition, it could also applied as the material in electroplate and preparation of precision alloy and solder.

When you are using this chemical, you should be very cautious. For one thing, it is harmful which may cause damage to health and it is irritating to skin. For another thing, it is toxic which may at low levels cause damage to health. If by inhalation, in contact with skin and if swallowed, it will be very dangerous. Besides, it has limited evidence of a carcinogenic effect. In addition, it is dangerous for the environment which may present an immediate or delayed danger to one or more components of the environment. Besides all these, it is flammable and may causes burns.
 
Due to so many dangers above, you should take the different measures to deal with different cases. Wear suitable protective clothing, gloves and eye/face protection. And if in case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) Then remember to avoid contacting with skin and eyes. In addition, do not breathe vapour. 

Additionally, you could convert the following datas into the molecular structure:
(1)Canonical SMILES: [Ag]
(2)InChI: InChI=1S/Ag
(3)InChIKey: BQCADISMDOOEFD-UHFFFAOYSA-N 

Below are the toxicity information of this chemical:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD oral > 5gm/kg (5000mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 27(12), Pg. 33, 1983.
mouse LD oral > 10gm/kg (10000mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 27(12), Pg. 33, 1983.