产品展示
石油冰点分子量测定仪
点击次数:367发布时间:2009/11/2 0:00:00
更新日期:2012/3/8 16:46:51
所 在 地:美国PSI
产品型号:5008
优质供应
详细内容
laboratory model automatic cryoscope for molecular weight, solution concentration, and freezing point depression determinations for aqueous and benzene solutions for 2.0 ml samples, featuring:
- two se-lectable ranges: -2.0 to 0°c and +2.5 to +5.5°c
- results displayed in m°c of freezing point depression
- adjustable bath temperature allowing optimum temperature settings for particular solvents
- 2-step calibration with non-interacting calibration controls
- refrigerator which reaches operating temperature in < 15 minutes
- bath controlled to ±0.1°c
- precise air temperature environment during sample isolation
comes with instruction manual, 24 2.0 ml sample tubes, spare stirring wires, 125 ml each of two standards, 250 ml of bath fluid, test tube rack, and spare temperature probe. power: 115v 50/60 hz. (other voltages are 00 extra). dr cryette a is shipped assembled and ready to use.
操作 | 自动 |
样品量 | 2ml |
适用溶剂 | 水或苯 |
冰点测量范围 ℃ | -2~0℃; +2.5~5.5℃ |
精度 ℃ | 0.001 |
分子量测定范围 daltons | <58~1200 |
精度 daltons | 1% |
测量时间 | 120秒 |
水浴容积 | 55ml |
冷冻时间 | 15分钟 |
校正 | 两点 |
外形尺寸(w*d*h) | 35.6*20.3*25.4cm |