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Silica gel

Silica gel
Silica gel structure
CAS No.
112926-00-8
Chemical Name:
Silica gel
Synonyms
SAND;gsj-30;G118307;Silicage;IATROBEADS;SILICA GEL;DAVISIL(TM);CAB-OSIL M-5;Drying perls;SILICA GEL 7
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)
Odor
Odorless
PH Range
About 7.0
Water Solubility 
Insoluble in water
Hydrolytic Sensitivity
6: forms irreversible hydrate
Merck 
14,8493
CAS DataBase Reference
112926-00-8
FDA 21 CFR
175.390
EWG's Food Scores
1
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(112)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 94098 Drying pearls Orange 112926-00-8 500 g $57.2 2021-03-22 Buy
Sigma-Aldrich 1.07735 Silica gel beads, desiccant ~ 2 - 5 mm 112926-00-8 1 kg $60.03 2021-03-22 Buy
Sigma-Aldrich 94098 Drying pearls Orange 112926-00-8 1 kg $94 2021-03-22 Buy
Sigma-Aldrich 1.01905 Silica gel granules, desiccant ~ 0.2 - 1 mm 112926-00-8 1 kg $82.97 2021-03-22 Buy
Sigma-Aldrich 10087 Silica gel orange granular, 0.2-1mm 112926-00-8 1kg-r $79 2020-08-18 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( 232)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
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Shanghai Time Chemicals CO., Ltd.
+8618017249410 +86-021-57951555
+86-021-57951555 jack.li@time-chemicals.com CHINA 1365 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 8909 55
Shanxi Naipu Import and Export Co.,Ltd
+8613734021967
kaia@neputrading.com CHINA 1009 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29954 58
SHANDONG ZHI SHANG CHEMICAL CO.LTD
+86 18953170293
+86 0531-67809011 sales@sdzschem.com CHINA 2941 58
Cangzhou Wanyou New Material Technology Co.,Ltd
18631714998
sales@czwytech.com CHINA 914 58
Shandong chuangyingchemical Co., Ltd.
18853181302
sale@chuangyingchem.com CHINA 5917 58
BOC Sciences
1-631-485-4226
1-631-614-7828 inquiry@bocsci.com United States 19752 58

View Lastest Price from Silica gel manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-11-08 Silica Gel Desiccant CAS 112926 00 8
112926-00-8
US $10.00 / KG 100g 99% 500MT/Month Wuhan wingroup Pharmaceutical Co., Ltd
2021-10-21 silica gel
112926-00-8
US $5.00-6.00 / KG 0.5KG >99% 20tons Anhui Rencheng Technology Co., Ltd
2021-08-31 silica gel
112926-00-8
US $1.00 / KG 100KG 99.99% 1000 tons/month Wuhan Monad Medicine Tech Co.,LTD

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