秒速时时彩


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    Shanghai Gong’s silica-gel desiccant Industrial and Trading Co.Ltd.
    Company Address:Shanghai Pudong Weifang road 335, lane 3, room 602, no. 1
    Tel:021-58202097
    Email:13701663200@139.com
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    URL:http://www.cfdow.com
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Column chromatography silica gel

【 Product Name 】Non Cobalt Color-variable Silica Gel

【 Characteristics 】  

In the form of spherical or irregularly-shaped grains, the gel is currently presented purple, orange and yellow. With silicon dioxide as the chief ingredient, the product performs all the functions of blue silica gel but does not contain cobalt chloride and is therefore innocuous and pollution-free, and its color varies as humidity changes.
【 Use 】  
Mainly for drying and indicating humidity of precision instruments, medicine, petrol chemicals, foodstuff, clothing, leather, electric appliances, other industrial gases,etc.

Put proper amounts in a suitable container or package and set the container or package where drying or humidity indication is needed. This gel can used independently or in with other types of silica gel. After changing color as a result of absorbing dampness, the gel can be reused after heating to change back to its pre-use color. Heating is most suitable between 100-120℃ 
【 Technical Data 】
Average pore diameter: 2.0-2.5nm, Surface area: 700-800m2/g, Pore volume:0.35-0.4ml/g, Specific heat:0.92KJ/kg.℃,Thermal conductivity: 0.63 KJ/m.Hr.℃.   

Item

Orange Silica Gel

Typical values

 

秒速时时彩 RH=20%

8.0min

12.2min

秒速时时彩 Adsorption

RH=35%

14。0min

19。5min

秒速时时彩 capacity %

秒速时时彩 RH=50%

22.0min

27。0min

 

RH=90%

30.0min

36.3min

秒速时时彩 Rattler loss%

10.0max

1max

Qualified size ratio %

96min

95min

Loss on heating %

5.0max

2max

Bulk density

750min

847min

Color

RH=20%

light yellow

eligibility

秒速时时彩 RH=35%

Light brown green

eligibility

RH=50%

light green

eligibility