幸运飞艇官网


Contact us
    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
    Free hotline:
    URL:
Your location:Home > ProductsProducts

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

 

RH=20%

8.0min

12.2min

Adsorption

RH=35%

14.0min

19.5min

capacity %

RH=50%

22.0min

27.0min

 

RH=90%

30.0min

36.3min

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

RH=35%

Light brown green

eligibility

RH=50%

light green

eligibility

友情链接:大都会彩票  永胜彩票  大都会彩票  大都会彩票  大都会彩票  大都会彩票登陆  

免责声明: 本站资料及图片来源互联网文章,本网不承担任何由内容信息所引起的争议和法律责任。所有作品版权归原创作者所有,与本站立场无关,如用户分享不慎侵犯了您的权益,请联系我们告知,我们将做删除处理!