铬价格

更多供应商 7440-47-3 价格

性状
为略带暗灰色的银白色金属(体心立方晶系)。熔点(1857±20)℃。沸点2672℃。相对密度d287.20,溶于稀硫酸、盐酸,不溶于水、硝酸、王水。
所属类别
无机化工产品: 无机盐: Cu单质
用途与作用
用于炼制高温合金、电阻合金、精密合金作为铬元素添加剂用。
合成工艺与制法
金属铬的生产,一直沿用铬铁矿钙法焙烧工艺,使三氧化二铬转化为铬酸钠,用稀溶液和水浸取成铬酸钠溶液,然后用电解法制造。由于铬铁矿及其附加剂中硅、铝等杂质含量较高,致使工艺中排渣量大,因渣中含有毒的水溶Cr6+,严重污染环境。
近年提出将铬铁矿先经还原制成碳素铬铁,再同纯碱进行氧化焙烧、浸取,得到铬酸钠溶液,此法的优点是铬铁矿中杂质大部分进入冶炼渣中,则混合料中全铬可配得较高,焙烧过程消耗于杂质的纯碱较少。
电解法用铬酸钠作为补偿液进行电解时,阴极液为40 g/L(以Cr计)、90g/L(以NH4计);阳极液为22 g/L(以Cr计),18 g/L(以NH4计),200g/L H2S04。阴极用不锈钢,阳极用:Pb-Ag合金,在温度约60℃、槽电压4.8 V、电流密度8.6 A/cm<2>。下进行电解,制得金属铬成品。
参考质量标准
国家标准GB 3211—82
化学成分%
Cr,≥杂质,≤
牌号FeSiAlCuCSPPbSnSbBiAs
外观表面应精整呈现铬的本色,断面应致密无气孔
JCr9999.00.400.300.300.040.020.020.010.00050.0010.0010.0010.001
JCr98.598.50.500.400.500.060.030.020.010.00050.0010.0010.0010.001
JCr9898.00.800.400.800.060.050.030.010.0010.0010.0010.0010.001


铬价格(试剂级)

更新日期产品编号品牌产品信息CAS号MDL号规格与纯度包装价格库存信息操作
2024/01/19 38494 铬片, 2-3mm (0.08-0.12in) 厚, 99.995% (metals basis)
Chromium pieces, 2-3mm (0.08-0.12in) thick, 99.995% (metals basis)
7440-47-3 MFCD00010944 50g 1430元 4 详细
2024/01/19 38494 铬片, 2-3mm (0.08-0.12in) 厚, 99.995% (metals basis)
Chromium pieces, 2-3mm (0.08-0.12in) thick, 99.995% (metals basis)
7440-47-3 MFCD00010944 250g 6367元 2 详细
2024/01/16 096159
Chromium pieces5-12mm Puratronic|r99.996% (metals basis)low gas (O{2} <100ppm; N{2} <50ppm)
7440-47-3 100g 2800元 0 详细
2024/01/16 44565 铬块, 2-15mm (0.08-0.59in), 99.996% (metals basis)
Chromium chunks, 2-15mm (0.08-0.59in), 99.996% (metals basis)
7440-47-3 MFCD00010944 10g 1230元 0 详细
2024/01/16 045251 铬, 等离子标准溶液, Specpure®, Cr 10μg/ml
Chromium, plasma standard solution, Specpure®, Cr 10µg/ml
7440-47-3 100ml 764元 0 详细
2024/01/16 44565 铬块, 2-15mm (0.08-0.59in), 99.996% (metals basis)
Chromium chunks, 2-15mm (0.08-0.59in), 99.996% (metals basis)
7440-47-3 MFCD00010944 50g 5302元 1 详细
2024/01/16 44556 铬粉末, -60目, 99.99% (metals basis)
Chromium powder, -60 mesh, 99.99% (metals basis)
7440-47-3 MFCD00010944 100g 1595元 0 详细
2024/01/16 44556 铬粉末, -60目, 99.99% (metals basis)
Chromium powder, -60 mesh, 99.99% (metals basis)
7440-47-3 MFCD00010944 500g 5495元 0 详细
2024/01/16 44005 铬片, 2-12mm (0.08-0.47in), 99.996% (metals basis), 氧含量 <100ppm, 氮含量 <50ppm
Chromium flakes, 2-12mm (0.08-0.47in), 99.996% (metals basis), Oxygen <100ppm, Nitrogen <50ppm
7440-47-3 MFCD00010944 10g 851元 0 详细
2024/01/16 43066 铬片, 1-25mm (0.04-1in), 99.99% (metals basis)
Chromium pieces, 1-25mm (0.04-1in), 99.99% (metals basis)
7440-47-3 MFCD00010944 50g 1220元 1 详细
2024/01/16 44005 铬片, 2-12mm (0.08-0.47in), 99.996% (metals basis), 氧含量 <100ppm, 氮含量 <50ppm
Chromium flakes, 2-12mm (0.08-0.47in), 99.996% (metals basis), Oxygen <100ppm, Nitrogen <50ppm
7440-47-3 MFCD00010944 50g 4167元 0 详细
2024/01/16 43066 铬片, 1-25mm (0.04-1in), 99.99% (metals basis)
Chromium pieces, 1-25mm (0.04-1in), 99.99% (metals basis)
7440-47-3 MFCD00010944 250g 6096元 0 详细
2024/01/16 43066 铬片, 1-25mm (0.04-1in), 99.99% (metals basis)
Chromium pieces, 1-25mm (0.04-1in), 99.99% (metals basis)
7440-47-3 MFCD00010944 1kg 24381元 0 详细
2024/01/16 042926
Chromium granules, -4+7 mesh
7440-47-3 99.999% (metals basis) 50g 5080元 0 详细
2024/01/16 042926
Chromium granules, -4+7 mesh
7440-47-3 99.999% (metals basis) 250g 22923元 0 详细
2024/01/16 42310 铬立方体块, 通常 6.35mm (0.25in) 边长, 99.95% (metals basis)
Chromium cubes, typically 6.35mm (0.25in) square, 99.95% (metals basis)
7440-47-3 MFCD00010944 10g 481元 0 详细
2024/01/16 42310 铬立方体块, 通常 6.35mm (0.25in) 边长, 99.95% (metals basis)
Chromium cubes, typically 6.35mm (0.25in) square, 99.95% (metals basis)
7440-47-3 MFCD00010944 50g 2487元 0 详细
2024/01/16 42310 铬立方体块, 通常 6.35mm (0.25in) 边长, 99.95% (metals basis)
Chromium cubes, typically 6.35mm (0.25in) square, 99.95% (metals basis)
7440-47-3 MFCD00010944 250g 9243元 0 详细
2024/01/16 41797 铬粉末, APS <10 微米, 99.2% (metals basis)
Chromium powder, APS <10 micron, 99.2% (metals basis)
7440-47-3 MFCD00010944 50g 681元 4 详细
2024/01/16 41797 铬粉末, APS <10 微米, 99.2% (metals basis)
Chromium powder, APS <10 micron, 99.2% (metals basis)
7440-47-3 MFCD00010944 250g 2175元 1 详细
2024/01/16 41797 铬粉末, APS <10 微米, 99.2% (metals basis)
Chromium powder, APS <10 micron, 99.2% (metals basis)
7440-47-3 MFCD00010944 1kg 3739元 0 详细
2024/01/16 040845 铬溅射靶, 76.2mm (3.0in) 直径 x 6.35mm (0.250in) 厚, 99.95% (metals basis)
Chromium sputtering target, 76.2mm (3.0in) dia x 6.35mm (0.250in) thick, 99.95% (metals basis)
7440-47-3 MFCD00010944 76.2mm (3.0in) 直径 x 6.35mm (0.250in) 厚, 99.95 1each 7358元 1 详细
2024/01/16 040843 铬溅射靶, 50.8mm (2.0in) 直径 x 6.35mm (0.250in) 厚, 99.95% (metals basis)
Chromium sputtering target, 50.8mm (2.0in) dia x 6.35mm (0.250in) thick, 99.95% (metals basis)
7440-47-3 50.8mm (2.0in) 直径 x 6.35mm (0.250in) 厚, 99.95 1each 4611元 1 详细
2024/01/16 040842 铬溅射靶, 50.8mm (2.0in) 直径 x 3.18mm (0.125in) 厚, 99.95% (metals basis)
Chromium sputtering target, 50.8mm (2.0in) dia x 3.18mm (0.125in) thick, 99.95% (metals basis)
7440-47-3 MFCD00010944 50.8mm (2.0in) 直径 x 3.18mm (0.125in) 厚, 99.95 1each 2835元 0 详细
2024/01/16 35668 铬粉, -100+325目, 99.99% (metals basis)
Chromium powder, -100+325 mesh, 99.97% (metals basis)
7440-47-3 MFCD00010944 10g 1672元 0 详细
2024/01/16 14760 铬片, 3-8mm (0.1-0.31in), 99.99% (metals basis)
Chromium pieces, 3-8mm (0.1-0.31in), 99.99% (metals basis)
7440-47-3 MFCD00010944 50g 2858元 0 详细
2024/01/16 35668 铬粉, -100+325目, 99.99% (metals basis)
Chromium powder, -100+325 mesh, 99.97% (metals basis)
7440-47-3 MFCD00010944 50g 6101元 0 详细
2024/01/16 14760 铬片, 3-8mm (0.1-0.31in), 99.99% (metals basis)
Chromium pieces, 3-8mm (0.1-0.31in), 99.99% (metals basis)
7440-47-3 MFCD00010944 250g 14286元 1 详细
2024/01/16 14760 铬片, 3-8mm (0.1-0.31in), 99.99% (metals basis)
Chromium pieces, 3-8mm (0.1-0.31in), 99.99% (metals basis)
7440-47-3 MFCD00010944 1kg 33041元 0 详细
2024/01/16 13796 铬粉末, -200 mesh, 99.95% (metals basis)
Chromium powder, -200 mesh, 99.95% (metals basis)
7440-47-3 MFCD00010944 25g 1415元 4 详细
2024/01/16 13796 铬粉末, -200 mesh, 99.95% (metals basis)
Chromium powder, -200 mesh, 99.95% (metals basis)
7440-47-3 MFCD00010944 100g 4081元 7 详细
2024/01/16 13796 铬粉末, -200 mesh, 99.95% (metals basis)
Chromium powder, -200 mesh, 99.95% (metals basis)
7440-47-3 MFCD00010944 500g 17829元 0 详细
2024/01/16 10453 铬单晶片, 2-15mm (0.08-0.59in), 99.996% (metals basis)
Chromium crystallite pieces, 2-15mm (0.08-0.59in), 99.996% (metals basis)
7440-47-3 MFCD00010944 10g 907元 3 详细
2024/01/16 10452 铬粉末, -10+20 目, 99.996% (metals basis)
Chromium powder, -10+20 mesh, 99.996% (metals basis)
7440-47-3 MFCD00010944 5g 1204元 10 详细
2024/01/16 10453 铬单晶片, 2-15mm (0.08-0.59in), 99.996% (metals basis)
Chromium crystallite pieces, 2-15mm (0.08-0.59in), 99.996% (metals basis)
7440-47-3 MFCD00010944 50g 6144元 0 详细
2024/01/16 10452 铬粉末, -10+20 目, 99.996% (metals basis)
Chromium powder, -10+20 mesh, 99.996% (metals basis)
7440-47-3 MFCD00010944 25g 4403元 2 详细
2024/01/16 10452 铬粉末, -10+20 目, 99.996% (metals basis)
Chromium powder, -10+20 mesh, 99.996% (metals basis)
7440-47-3 MFCD00010944 100g 10384元 0 详细
2024/01/16 10151 铬片, 电解的, 6mm 或更小, Puratronic®, 99.997% (metals basis)
Chromium pieces, electrolytic, 6mm & down, Puratronic®, 99.997% (metals basis)
7440-47-3 MFCD00010944 25g 1603元 1 详细
2024/01/16 10151 铬片, 电解的, 6mm 或更小, Puratronic®, 99.997% (metals basis)
Chromium pieces, electrolytic, 6mm & down, Puratronic®, 99.997% (metals basis)
7440-47-3 MFCD00010944 100g 6678元 2 详细
2024/01/16 10150 铬片, 不规则, 99% (metals basis)
Chromium pieces, irregular, 99% (metals basis)
7440-47-3 MFCD00010944 100g 369元 0 详细
2024/01/16 10150 铬片, 不规则, 99% (metals basis)
Chromium pieces, irregular, 99% (metals basis)
7440-47-3 MFCD00010944 500g 940元 0 详细
2024/01/16 10149 铬立方体块, 12.5mm (0.492in) square, 99.97% (metals basis)
Chromium cubes, 12.5mm (0.492in) square, 99.97% (metals basis)
7440-47-3 MFCD00010944 1each 2551元 0 详细
2024/01/16 10148 铬粉末, -325 目, 99% (metals basis)
Chromium powder, -325 mesh, 99% (metals basis)
7440-47-3 MFCD00010944 100g 527元 2 详细
2024/01/16 10149 铬立方体块, 12.5mm (0.492in) square, 99.97% (metals basis)
Chromium cubes, 12.5mm (0.492in) square, 99.97% (metals basis)
7440-47-3 MFCD00010944 5each 10558元 0 详细
2024/01/16 10148 铬粉末, -325 目, 99% (metals basis)
Chromium powder, -325 mesh, 99% (metals basis)
7440-47-3 MFCD00010944 500g 2732元 0 详细
2024/01/16 10147 铬粉末, -100 目, 99% (metals basis)
Chromium powder, -100 mesh, 99% (metals basis)
7440-47-3 MFCD00010944 10g 275元 9 详细
2024/01/16 10148 铬粉末, -325 目, 99% (metals basis)
Chromium powder, -325 mesh, 99% (metals basis)
7440-47-3 MFCD00010944 2kg 5548元 0 详细
2024/01/16 10147 铬粉末, -100 目, 99% (metals basis)
Chromium powder, -100 mesh, 99% (metals basis)
7440-47-3 MFCD00010944 100g 709元 0 详细
2024/01/16 10147 铬粉末, -100 目, 99% (metals basis)
Chromium powder, -100 mesh, 99% (metals basis)
7440-47-3 MFCD00010944 500g 3544元 1 详细
2024/01/16 10147 铬粉末, -100 目, 99% (metals basis)
Chromium powder, -100 mesh, 99% (metals basis)
7440-47-3 MFCD00010944 2kg 12449元 0 详细
2024/01/16 00472 铬片, 3-12mm (0.12-0.47in), 99.2% (metals basis)
Chromium pieces, 3-12mm (0.12-0.47in), 99.2% (metals basis)
7440-47-3 MFCD00010944 100g 790元 0 详细
2024/01/16 00472 铬片, 3-12mm (0.12-0.47in), 99.2% (metals basis)
Chromium pieces, 3-12mm (0.12-0.47in), 99.2% (metals basis)
7440-47-3 MFCD00010944 500g 9624元 0 详细
2024/01/16 53204561 铬标准溶液
Chromium standard solution
100mL 164元 请询货期 详细
2024/01/16 53204560 铬标准溶液
Chromium standard solution
100mL 87元 请询货期 详细
2024/01/16 51006960 铬片
chromium
7440-47-3 25G 101元 <10 详细
2024/01/16 51006867 铬粉 250-300目
chromium
7440-47-3 2KG 1906元 >10 详细
2024/01/16 51006865 铬粉 200-250目
chromium
7440-47-3 100G 133元 >10 详细
2024/01/16 51006862 铬粉 200目
chromium
7440-47-3 2KG 1746元 >10 详细
2024/01/16 51006861 铬粉 200目
chromium
7440-47-3 100G 123元 >10 详细
2024/01/16 51006760 铬粉
chromium
7440-47-3 100G 95元 >10 详细
2024/01/16 51006460 铬粒
chromium
7440-47-3 100G 101元 <10 详细
2021/02/25 040844
Chromium sputtering target, 76.2mm (3.0in) dia x 3.18mm (0.125in) thick
7440-47-3 99.95% (metals basis) 1each 999999元 详细
2010/05/25 40844 铬溅射耙材, 76.2mm (3.0in) dia x 3.18mm (0.125in) thick, 99.95% (metals basis)
Chromium sputtering target, 76.2mm (3.0in) dia x 3.18mm (0.125in) thick, 99.95% (metals basis)
7440-47-3 MFCD00010944 each 5726元 详细
铬酸钾价格(试剂级) 三氧化铬价格(试剂级) 重铬酸铵价格(试剂级) 媒介黑 17价格(试剂级) 重铬酸钾价格(试剂级) 三氧化二铬价格(试剂级) 六水氯化铬价格(试剂级) 氯铬酸吡啶盐(PCC)价格(试剂级) 铬黑 T价格(试剂级) 铬价格(试剂级)