ChemicalBook
Chinese Japanese Germany Korea

Silica gel

Silica gel
Silica gel structure
CAS No.
112926-00-8
Chemical Name:
Silica gel
Synonyms
SAND;G118307;SILICA GEL;IATROBEADS;Silica gel;DAVISIL(TM);SILICAR CC-4;Drying perls;SILICA GEL 7;WAKOGEL(R) G
CBNumber:
CB1199389
Molecular Formula:
O2Si
Formula Weight:
60.0800018310547
MOL File:
Mol file

Silica gel Properties

Melting point:
1610°C
Boiling point:
2230℃
Density 
2.6
Flash point:
23°C
storage temp. 
2-8°C
form 
powder or granules
Specific Gravity
0.88g/ml
color 
blue
PH
~6.8 (10% in aq. suspension)
Merck 
14,8493
CAS DataBase Reference
112926-00-8
EPA Substance Registry System
Silica gel, pptd., cryst.-free(112926-00-8)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS08
Signal word  Danger
Hazard statements  H350i-H360F-H412
Precautionary statements  P201-P273-P308+P313
Hazard Codes  Xi,T,N,Xn
Risk Statements  20-37-42/43-49-36/37-48/20-51/53-68-50/53-41-22-60
Safety Statements  22-24/25-45-36/37-53-26-36-61-60-39
RIDADR  1993
WGK Germany  2
RTECS  VV7315000
3
Hazard Note  Harmful/Irritant
TSCA  Yes

Silica gel price More Price(101)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 10087 Silica gel orange granular, 0.2-1mm 112926-00-8 2.5kg-r $169 2018-11-20 Buy
Sigma-Aldrich 10087 Silica gel orange granular, 0.2-1mm 112926-00-8 1kg-r $72.6 2018-11-20 Buy
Strem Chemicals 14-4353 Metals scavenging agent, Mercaptopropyl modified silica (BASF MSA-FC Si-3) 112926-00-8 10g $80 2018-11-13 Buy
Strem Chemicals 14-4353 Metals scavenging agent, Mercaptopropyl modified silica (BASF MSA-FC Si-3) 112926-00-8 50g $320 2018-11-13 Buy
Sigma-Aldrich 645524 Silica gel Residual water (≤12%) 112926-00-8 2.5kg $323 2018-11-20 Buy

Silica gel Chemical Properties,Uses,Production

Chemical Properties

white to off-white powder

Chemical Properties

Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder

Uses

Silica gel was used on glass plates for preparative TLC and on aluminium sheets for analytical TLC. Silica gel was used in vacuum chromatography and TLC. Silica gel was used in column chromatography.

Definition

A gel made by coagulating sodium silicate sol. The gel is dried by heatheating and used as a catalyst support and as a drying agent. The silica gel used in desiccators and in packaging to remove moisture is often colored with a cobalt salt to indicate whether it is still active (blue=dry; pink=moist).

Definition

A rigid gel made by coagulatinga sol of sodium silicate andheating to drive off water. It is usedas a support for catalysts and also asa drying agent because it readily absorbsmoisture from the air. The gelitself is colourless but, when used indesiccators, etc., a blue cobalt salt isadded. As moisture is taken up, thesalt turns pink, indicating that thegel needs to be regenerated (by heating).

Agricultural Uses

A hard granular hygroscopic form of hydrated silica is called silica gel. It is made by heating a coagulated sol of sodium silicate. It is used as a catalyst and a desiccant.

Potential Exposure

Amorphous fumed silica is used as a mineral, natural or synthetic fiber. A potential danger to those involved in the production and handling of fumed silica for paint pigments or catalysts. Diatomaceous earth is used in clarifying liquids, in manufacture of fire brick and heat insulators; used as a filtering agent; as a filler in construction materials; pesticides, paints, and varnishes. A potential danger to those involved in mining of diatomaceous earth or fabrication of products there from.

Purification Methods

Before use as a drying agent, silica gel is heated in an oven, then cooled in a desiccator. Conditions in the literature range from heating at 110o for 15hours to 250o for 2-3hours. Silica gel has been purified by washing with hot acid (in one case successively with aqua regia, conc HNO3, then conc HCl; in another case it was digested overnight with hot conc H2SO4), followed by exhaustive washing with distilled water (one week in a Soxhlet apparatus has also been used), and prolonged oven drying. Alternatively, silica gel has been extracted with acetone until all soluble material was removed, then dried in a current of air, washed with distilled water and oven dried. Silica gel has also been washed successively with water, M HCl, water, and acetone, then activated at 110o for 15hours. Silicon monoxide [10097 -28 -6] M 44.1, m > 1700o, d 4 2.18. Purify the monoxide by sublimation in a porcelain tube in a furnace at 1250o (4hours) in a high vacuum (10-4mm) in a stream of N2. It is obtained as brownish black scales. [Schenk in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 696 1963.]

Incompatibilities

Silica, amorphous is a noncombustible solid. Generally unreactive chemically. Incompatible with fluorine, oxygen difluoride, chlorine trifluoride. Soluble in molten alkalis and reacts with most metallic oxides at high temperature.

Waste Disposal

Sanitary landfill.

Silica gel Preparation Products And Raw materials

Raw materials

Preparation Products


Silica gel Suppliers

Global( 174)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Jiangxi New jiayi New Materials Co., Ltd.
15988280056
0792-3170903 info@xjysi.com; mina@xjysi.com CHINA 27 55
Qingdao Hongjin Trading Co., Ltd.
0532-83657313
hjt@hong-jin.com CHINA 220 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20672 55
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555
+86-021-57951555 jack.li@time-chemicals.com CHINA 1365 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30003 58
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 23980 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 export@haihangchem.com CHINA 8921 58
Cangzhou Wanyou New Material Technology Co.,Ltd
18631714998
sales@czwytech.com CHINA 913 58
BOC Sciences
1-631-619-7922
1-631-614-7828 inquiry@bocsci.com United States 20115 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 35440 58

View Lastest Price from Silica gel manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-07-21 silica gel desiccant
112926-00-8
US $1.00 / KG 1KG 99.9% 300000 Kilogram/Kilograms per Month Cangzhou Wanyou New Material Technology Co.,Ltd
2019-05-28 desiccant silica gel raw materials white beads
112926-00-8
US $1.00 / g 1g 99% 200 Metric Ton Cangzhou Wanyou New Material Technology Co.,Ltd
2019-07-10 Silica gel
112926-00-8
US $1.00 / KG 1KG 98% 1kg,5kg,100kg career henan chemical co

112926-00-8(Silica gel)Related Search:


Copyright 2017 © ChemicalBook. All rights reserved