NODULAR, APS 1-5 MICRON
TDS 17 Inquiries
7440-21-3
Industrial Grade
99.5%
Shanghai
Dideu;CT200
25KG/ DRUM
2026-01-10
Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst
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Product Description
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Seller Information
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Inquiry History
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DescriptionCertificatesBasic Info
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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
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Seller Information
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Business Type:
Manufactory
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Main Products:
Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst
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Location:
https://www.dideu.com/en/
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Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance
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Average lead Time:
7
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Total Annual Revenue:
Above $100 million
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Total Employees:
Above 1000
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Year of Establishment:
2016
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Certifications:
ISO Certificate,REACH
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Inquiry History17 Inquiries
Country Product Purchase Quantity Date Posted
Saudi Arabia
Silicone
1 PCS Mar 9, 2026
United Kingdom
Silicone
200 PCS Jan 21, 2026
South Africa
Silicone
1 KG Jan 8, 2026
Saudi Arabia
Silicone
1 KG Jan 4, 2026
India
Silicone
1 KG Sep 3, 2025
United States
Silicone
50 Jul 23, 2025
India
silicon powder
25.00 MT Feb 13, 2025
Pakistan
silicon
5 TON Jul 25, 2024
Qatar
Silicone
1 KG Mar 18, 2026
Indonesia
Silicone
100 G Feb 5, 2026
Malta
Silicone
3020 PCS Dec 10, 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
Bangladesh
silicone
1 MT Sep 2, 2024
Ghana
Silicone
250 KG Jan 3, 2024 Post an enquiry for this product