Tender Details
- Tender Name:
- Supply of Silica Gel
- Tender Type:
- NCT
- Package No:
- S2007/13
- Post Date:
- 05th April, 2007
- Closing Date:
- 26th April, 2007
- Currency:
- -
- Price of Tender Document:
- 500000.00
- Tender Description:
- 1. 2,500kg Silica Gel, self –indicating (blue) 1.0-3.0mm Description- a granular form of amorphous silica impregnated with cobalt chloride. The crystals change from a deep blue in the activated (dry) condition to pink when saturated with water. Specification: Moisture Content at 145 Deg Cel 2.0% maximum Adsorption Capacity 23.0% minimum at relative humidity (r.h.), at 250 C pH not less than 3.5 Water soluble sulphates 1.0% maximum Ammonia/ammonium compounds 10mg/kg maximum Cobalt chloride content 0.5% minimum Friility and dust Not more than 0.5% less than 125 micron The material should conform to BS 3523:1991 Chemical Comp Silica (SiO2) 90% maximum Aluminium as AL2O3 1.0% maximum Iron as Fe2O3 0.5% maximum Sodium as Na2O 0.3% maximum Sulphate (SO1) 0.5% maximum Typical Properties Bulk density 700-750 grams/litre Water adsorption capacity at 25 Deg Cel 10% r.h. 6.5% weight for weight (w/w) 20% r.h. 12% w/w 40% r.h. 22% w/w 60% r.h. 34% w/w 80% r.h. 36% w/w
- Additional Information:
- Source of Funds:
- -
- No. of Lots:
- Agency:
- Health Assistant Training School - Lawra
- Region:
- Greater Accra
- District:
- Tema Metropolitan District
- Contact Person:
- E.K. onyi Acquah
- Email:
- onyi.acquah@vra.com
- Telphone:
- 233-21-665073
- Fax:
- 233-21-668905
- Website:
- -