Silicon
17 Inquiries
7440-21-3
Industrial Grade
99.7%
QINGDAO
25kg/10kg Drum
2016-12-29
-
Product Description
-
Seller Information
-
Inquiry History
-
Description
Silicon research began in the country of Scandinavia, despite the 1950s people have the understanding and preliminary study on the effect of silica fume, but the application in practical engineering is from the beginning of 70s, the first is Norway and Sweden on 1982 in port, Beihai oilfield and underground mine part of the silica fume concrete, Norway in Funuo Bashang, Weiss the official use of silica fume concrete dam, Canada in early 1980s in Quebec established a silica fume concrete, and the experimental study on large volume concrete, mixing of high grade concrete 10 thousand cubic meters, in 1983 the United States with silica fume concrete repair cacha dam Austria Rivne River on the stilling basin, the effect is good. Other countries in the world have stepped up their research and application. In China, the history of research on silica fume is not long, only 10 years, 1985 Research Institute and the Department of East hydropower exploration hydropower tenth Engineering Bureau of the Ministry for the first time in the two Sichuan Yuzixi hydropower station in the trial of silica fume concrete, concrete with silica fume in the plant from 3% to 7%, in order to improve the early strength, accelerate the turnover of templates. To achieve the desired effect, in addition, in the diversion tunnel of sprayed concrete, silica powder, 715%, to reduce the springback of concrete, the south hospital in Dahuofang reservoir engineering, Longyangxia drainage building and Gezhouba Dam sluice repair and other projects are using silicon powder concrete, the effect is good, makes some research on the durability of concrete in terms of the algae and silica fume cement grouting material, and two in Ertan Hydropower Station foundation consolidation grouting, pan dam spillway repair engineering, health and Sichuan qiuda station guide The use of silica fume concrete flow Hongdong repair engineering, silica fume cement grouting. All of these show the application of silica fume concrete as a kind of high performance concrete in the project becomes more and more important, so its performance especially on the strength and durability have also attracted much attention.
Basic Info-
Product Name:
Silicon
Other Name:Silicon;Silicon element;Sicomill Grade 2;KDB 20;Sicomill 4C-P;Silgrain Standard;SILSO;Polysilicon;HGH 600;Metasilicon 325A;Hexsil;CZ-N Polished wafer;SI 1059;GKO 3516A;KR 1;KDB 10;4FY;Silgrain HQ;Si(100) wafer;Biosilicon;Silgrain;Silicon 100;PHC 20;KDB 0.5;KDB 0.1;Aldrich 267414-25G;Sharp 80W;FEB 450D;JT 02;SIE 23PB;Sicomill E 4;PSi-C 2;ψ-C 2;SIE 20PB;KTC;KTC (element);Silicon 600;SI 500443;SI 500444;KEF 100;AgroSilicio;Sili-K;Si-S 10μm;6PW-A1;Silicon 200;SI 500452;a-Si 11;a-Si 12;a-Si 13;M-Si 600;Silgrain E-Si 400;T 2;T 2 (filler);SI 006031;WFP 6005;SAF 184;SI 100;KR-2;Wafer World 119;S 308;17375-03-0;71536-23-7;72516-01-9;72516-02-0;72516-03-1;90337-93-2;152284-21-4;157383-37-4;160371-18-6;1616351-53-1
CAS No.:7440-21-3
Molecular Formula:Si
InChIKeys:InChIKey=XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Weight:28.09000
Exact Mass:27.98000
EC Number:231-130-8
UNII:5J076063R1|Z4152N8IUI
ICSC Number:1508
UN Number:1346
DSSTox ID:DTXSID0051441
Color/Form:Black to gray, lustrous, needle-like crystals or octahedral platelets (cubic system); amorphous form is dark brown powder
HScode:2804690000
Categories:
Characteristics-
PSA:
0
XLogP3:0.00000
Appearance:Silicon powder, amorphous appears as a dark brown powder. Insoluble in water and denser than water. Burns readily when exposed to heat or flames, and may be difficult to extinguish. Water may not be effective in extinguishing flames. Used to make computer microchips.
Density:2.33 g/cm3 @ Temp: 25 °C
Melting Point:1410 °C
Boiling Point:2355 °C
Water Solubility:H2O: INsoluble
Storage Conditions:Flammables area
Vapor Pressure:0 mmHg (approx)
Flammability characteristics:Combustible Solid in powder form.
Experimental Properties:Atomic number: 14; valence: 4, 2; poor conductor of electricity ... lattice constant (25 °C): 5.41987X10-8 cm; compressibility (vol/vol 0) at 25x10+3 kg/sq cm: 0.978; at 100x10+3 kg/sq cm: 0.940; dielectric constant: 13; covalent bond ionization energy at 0 K = 1.2 electron volt; band gap: 1.106 electron volt; impurity atom ionization energy: approx 0.04 electron volt; intrinsic resistivity at 300 K = 0.23 megaohm; average heat capacity (16-100 °C): 0.1774 cal/g/deg C|Temperature of transition: solid = 1683 degree K; liquid = 2750 degree K; Heat of transition: solid = 11.1 kcal/g mole; liquid = 71 kcal/g mole|Mohs hardness: 7; dielectric constant: 12; coordination number: 6|For more Other Experimental Properties (Complete) data for Silicon, Elemental (11 total), please visit the HSDB record page.
Air and Water Reactions:Highly flammable. Insoluble in water. A significant dust explosion hazard.
Reactive Group:Metals, Elemental and Powder, Active
Reactivity Alerts:Highly Flammable
Reactivity Profile:SILICON POWDER, AMORPHOUS is a reducing agent. Ignites in fluorine gas at ordinary temperatures [Mellor 2:11-13 1946-47]. Burns spontaneously in gaseous chlorine. A mixture of silicon, aluminum, and lead oxide explodes when heated [Mellor 7:657 1946-47]. When heated with an alkali carbonate, a vigorous reaction attended by incandescence occurs [Mellor 6:164 1946-47]. Reacts violently with silver fluoride [Mellor 3:389 1946-47]. Reacts with sodium-potassium alloy to form sodium silicide, which is spontaneously flammable in air [Mellor 2 Supp. 2:564 1961].
Heat of Combustion:-9.0550x10+8 J/kmol
Flammable Limits:Combustible Solid in powder form.
Physical Dangers:Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.
Heat of Vaporization:16 kJ/g
Critical Temperature & Pressure:Critical temperature: 4886 °C; critical pressure: 53.6 MPa
-
-
Seller Information
-
Business Type:
Manufactory
-
Location:
Lingshou County Yan Chuan Xiang Ying Li Cun
Lingshou Boshan County mineral processing plant is bentonite, kaolin, cenosphere, Maifanshi, micro silicon powder, sepiolite mineral fiber, wood fiber and other non-metallic mineral products professional production and processing companies, has a complete and scientific quality management system. Boshan Lingshou mineral processing plant integrity, strength and quality of products recognized by the industry. Welcome friends from all walks of life come to visit, guidance and business negotiation.
-
-
Inquiry History17 Inquiries
Country Product Purchase Quantity Date Posted 
Qatar
Silicone
1 KG Mar 18, 2026 
Saudi Arabia
Silicone
1 PCS Mar 9, 2026 
Indonesia
Silicone
100 G Feb 5, 2026 
United Kingdom
Silicone
200 PCS Jan 21, 2026 
Malta
Silicone
3020 PCS Dec 10, 2025 
United States
Silicone
50 Jul 23, 2025 
India
Silicone
1 TON Nov 5, 2024
India
Metallurgical Grade Silicon (99% purity)
1 MT Sep 13, 2024
United States
silicon
5000000 KG Aug 1, 2024 
Germany
Silicon anode material
20 MT Nov 10, 2023 
South Africa
Silicone
1 KG Jan 8, 2026
Saudi Arabia
Silicone
1 KG Jan 4, 2026
India
Silicone
1 KG Sep 3, 2025
India
silicon powder
25.00 MT Feb 13, 2025 
Pakistan
silicon
5 TON Jul 25, 2024 
Bangladesh
silicone
1 MT Sep 2, 2024 
Ghana
Silicone
250 KG Jan 3, 2024 Post an enquiry for this product
