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北京东方银华贸易商行(Silverado Trading Company)

产品介绍

石油冰点分子量测定仪

价 格:¥NIL

型 号:5008

产品完善度:

生产地:其他访问量:157次

发布日期:2009/11/2 0:00:00

更新日期:1900/1/1 0:00:00

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 $100 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

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