7440-57-5 (金,海绵状,Gold)

金,海绵状;黄金;金;金溅射;纳米金粉;金粉;金片;氨基酸键合金纳米粒子;金离子标准溶液;氨基金纳米粒子;海绵金;化学金保护剂;黄金开缸剂;胶体金;介孔二氧化硅修饰的金纳米棒;金保护剂;金标准溶液;金粒;金纳米棒;金原子吸收法标准溶液;羧基金纳米粒子;5’-一磷酸鸟苷二钠;L的HCl溶液;ml,溶剂:柠檬酸钠溶液;黄金,金粉,金箔,金叶;金标准溶液,Gold Standard,1000μg;金标准溶液,Gold Standard,100μg;金粉,4N 金粉;金粉,4N 金丝;金粉,5N;金粉,5N 金粉;金丝;纳米金溶液;纳米金粉体;超高浓度胶体金溶液;

Gold;GoldpowderNmesh;gold coating quality balzers;gold, colloidal;10nm colloidal gold;E 175;GoldfoilNmmthickcagxmm;GoldshotNmmanddownsemispherical;GoldwireNmmdiacagcm;GoldfoilNmmthickcagmmxmm;Goldpowdermicronspherical;GoldpowderNmicron;Gold powder;Gold wire;Gold foil;Gold nanoparticles;Gold nanorods;Gold Ultrathin foil;Gold flake;Gold Thinfoil;Gold splatter;Gold rod;Gold sputtering target;Gold slug;Gold nanopowder;Gold shot;Gold sponge;Gold AA Std.;Gold Gemini Nanorods, CTAB Free (Wavelength 650 nm);Gold Gemini Nanorods, CTAB Free (Wavelength 700 nm);Gold Gemini Nanorods, CTAB Free (Wavelength 750 nm);Gold Gemini Nanorods, CTAB Free (Wavelength 800 nm);Gold Gemini Nanorods, CTAB Free (Wavelength 850 nm);Gold ICP Standard;Gold ICP Std.;Gold Nanoparticles (100nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free;Gold Nanoparticles (100nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 572nm abs. max.);Gold Nanoparticles (10nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 520nm abs. max.) reactant free;Gold Nanoparticles (10nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 515-520nm abs. max.);Gold Nanoparticles (150nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free;Gold Nanoparticles (150nm, 1 OD, supplied in 0.1mM stabilizing surfactant);Gold Nanoparticles (15nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 520nm abs. max.) reactant free;Gold Nanoparticles (15nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 520nm abs. max.);Gold Nanoparticles (200nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free;Gold Nanoparticles (200nm, 1 OD, supplied in 0.1mM stabilizing surfactant);Gold Nanoparticles (20nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 524nm abs. max.) reactant free;Gold Nanoparticles (20nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 524nm abs. max.);Gold Nanoparticles (250nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free;Gold Nanoparticles (250nm, 1 OD, supplied in 0.1mM stabilizing surfactant);Gold Nanoparticles (300nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free;Gold Nanoparticles (300nm, 1 OD, supplied in 0.1mM stabilizing surfactant);Gold Nanoparticles (30nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 526nm abs. max.) reactant free;Gold Nanoparticles (30nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 526nm abs. max.);Gold Nanoparticles (400nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free;Gold Nanoparticles (400nm, 1 OD, supplied in 0.1mM stabilizing surfactant);Gold Nanoparticles (40nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 530nm abs. max.) reactant free;Gold Nanoparticles (40nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 530nm abs. max.);Gold Nanoparticles (5 nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 515-520 nm abs. max.) reactant free;Gold Nanoparticles (50nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 535nm abs. max.) reactant free;Gold Nanoparticles (50nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 535nm abs. max.);Gold Nanoparticles (5nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 515-520nm abs. max.);Gold Nanoparticles (60nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free;Gold Nanoparticles (60nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 540nm abs. max.);Gold Nanoparticles (70nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free;Gold Nanoparticles (70nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 548nm abs. max.);Gold Nanoparticles (80nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free;Gold Nanoparticles (80nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 553nm abs. max.);Gold Nanoparticles (90nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free;Gold Nanoparticles (90nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 564nm abs. max.);Gold nanoparticles powder, 6nm, organic solvent-dispersible;Gold nanoparticles with amine surface functional group, 6nm, in water;Gold nanoparticles with carboxylic acid surface functional group, 6nm, in water;Gold Nanorods (Axial Diameter - 10 nm) (Wavelength 700 nm);Gold Nanorods (Axial Diameter - 10 nm) (Wavelength 750 nm);Gold Nanorods (Axial Diameter - 10 nm) (Wavelength 780 nm);Gold Nanorods (Axial Diameter - 10 nm) (Wavelength 808 nm);Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 550 nm);Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 600 nm);Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 650 nm);Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 700 nm);Gold Nanorods [AuNP-Rod: Aspect Ratio: 3-3.5 (CTAB)];Gold solution;Gold standard;Spherical Gold Nanoparticles (30 nm);Spherical Gold Nanoparticles (50 nm);Spherical Gold Nanoparticles (70 nm);Spherical Gold Nanoparticles (90 nm);Sponge gold;Sugar Coated Gold Nanoparticles [AuNP: 1-2 nm (Lactose)];Sugar Coated Gold Nanoparticles [AuNP: 6-10 nm (Maltose)];Water Soluble Gold Nanoparticles [AuNP: 10 nm (Citrate)];Water Soluble Gold Nanoparticles [AuNP: 11-20 nm (Gelatin)];Water Soluble Gold Nanoparticles [AuNP: 12-16 nm (Starch)];Water soluble Gold Nanoparticles [AuNP: 15 nm (Citrate)];Water Soluble Gold Nanoparticles [AuNP: 3nm (Citrate)];Water Soluble Gold Nanoparticles [AuNP: 5nm (Citrate)];100.0μg;1000μg;Au solution;AURIC;AUROUS;Glod;GMP DisodiuM Salt;Gold standard solution, for AAS, 1 Mg;gold-197;m (Gum Arabic)];Ml Au in 0.5N HCl;sphere;tetra-n-octylammonium chloride colloid;AU005830;AU005835;AU005840;AU004700;AU004500;AU005820;AU004800;AU005831;AU004850;AU004300;AU004100;AU004950;AU004925;AU007905;AU007910;AU007920;AU007940;AU007950;AU007960;AU006840;AU007050;AU005837;AU005845;AU005825;AU005810;AU005120;AU008710;AU000140;AU000150;AU000329;AU000340;AU000347;AU000351;AU000110;AU000341;AU000160;AU000348;AU000130;AU005165;AU005155;AU006010;AU000100;AU005125;AU005110;AU000343;AU000350;AU000330;AU000331;AU000345;AU000180;AU005135;AU005160;AU005133;AU005140;AU000370;AU005150;AU000090;AU006015;AU005132;AU005130;AU005126;AU000170;AU005145;AU005171;AU008730;AU005170;AU005137;AU000349;AU000371;AU008721;AU000070;AU000120;AU000065;AU000342;AU005172;AU005151;AU005166;AU000310;AU000190;AU005115;AU005148;AU000080;AU005121;AU007190;AU000060;AU006020;AU008725;AU007100;AU007150;AU004600;AU007180;AU004990;AU007961;AU007700;AU007200;AU007290;AU007201;AU007650;AU007020;AU000372;burnish gold;c.i. pigment metal 3;ci pigment metal 3;colloidal gold;gold leaf;magnesium gold purple;shell gold;Gold, elemental;Pigment metal 3;CI 77480;C.I. 77480;Au;79Y1949PYO;COLLOIDAL GOLD PARTICLES;Gold wire, 1.0mm (0.04in) dia;Gold wire, 0.25mm (0.01in) dia;Au2;Gold, 99.99%, (trace metal basis), shot;Gold, ion(Au4+);Gold, ion(2 );Gold wire, 1.0;Nano gold solution;Nano gold powde;Ultra high concentration colloidal gold solution;

MFCD00003436

PCHJSUWPFVWCPO-UHFFFAOYSA-N

1S/Au

[Au]

2125

用作货币、珠宝饰物、牙科材料和电镀金属。金的量常用金衡制表示，并以“克拉”(carat，1克拉= 2g)表示合金中金的纯度。24K就是纯金。金还用于制造各种电器、红外光反射器和玻璃着色剂。作为半导体连接所需的金线原料和镀金材料。超细金粉是制备细线金浆、低温金浆及金钯、金铂钯、金银钯等优良导体浆料的主要导电材料。半导体工业用作镀金材料。

1.金主要以游离态(天然金)存在于自然界中，也存在于碲化物矿中。海水中含有一定量的金(0.1～2mg/t)，但尚无工业方法提取。通常采用氰化物法、汞齐法或熔炼法提取。纯化精炼金多采用电解法。将高纯氯化金溶液加入反应器中，在搅拌下加入草酸进行还原反应，过滤，用无离子水洗涤，制得高纯金成品。超细金粉：可用热分解法和水溶液还原法制取。热分解法可获得平均粒度为1～2μm的金粉；水溶液还原法可获得平均粒度为0.05～0.5μm的金粉。2.金通常是从含有天然金的矿石中提取获得，最常用的方法是氰化法。用稀的NaCN溶液(0.03%～0.2%)处理粉碎后的矿石，并通入空气，使金粒溶解，残渣分出后，用锌或铝将金置换出来。该法的缺点是使用了大量的剧毒试剂氰化钠，对人体和环境有极大的危害。另一重要的方法是用硫脲来取代氰化钠，即在酸性溶液中，存在氧化剂(如H2O2，FeCl3)的条件下，使金与硫脲反应。3. 高纯金的制法.将高纯氯化金溶液加入反应器中，在搅拌下加入草酸进行还原反应，过滤，用无离子水洗涤，制得高纯金成品。然后用还原法还原出金。若要获得高纯度的金，则必须通过电解精炼得到。将HAuCl2与盐酸混合液进行电解精炼，便可获得99.999%的高纯金。将高纯氯化金溶液加入反应器中，在搅拌下加入草酸进行还原反应，过滤，用无离子水洗涤，制得高纯金成品。

231-165-9