accessibility menu, dialog, popup

Test

Silicon (Si)

Silicon (Si)

Impure amorphous silicon was prepared in 1811 and purified in 1824. Crystalline silicon, the second allotropic form of the element, was first prepared in 1854.

Crystalline silicon is grayish with a metallic luster. Although relatively inert, it is affected by halogens and dilute alkali and unaffected by most acids.

Silicon is present in the sun and stars and in meteorites known as aerolites. It is not found free naturally, but is usually in the form of the oxide and silicates. Look for silicon in sand, quartz, rock crystal, amethyst, agate, flint, jasper, opal, granite, hornblende, asbestos, feldspar, clay, mica, and other minerals.

Molecular Weight (g/mol) 
  • (44)
Quantity 
  • (2)
  • (1)
  • (2)
  • (4)
  • (1)
  • (3)
  • (4)
  • (3)
  • (1)
  • (1)
  • (1)
  • (3)
  • (2)
  • (3)
  • (3)
  • (1)
  • (5)
  • (3)
  • (1)
Percent Purity 
  • (4)
  • (2)
  • (2)
  • (3)
  • (28)
  • (4)
Form 
  • (3)
  • (3)
  • (8)
  • (6)
  • (9)
  • (2)
  • (3)
  • (6)
  • (2)

Filtered Search Results

Products from some of our suppliers do not display in filtered search results. Please clear all filters to see these products.

Narrow Results

Narrow Results

No results found within this category. Try removing some selected filters and try again.

category

brands

  • (44)

special offers

  • (1)
  • (1)

Molecular Weight (g/mol)

  • (44)

Quantity

  • (2)
  • (1)
  • (2)
  • (4)
  • (1)
  • (3)
  • (4)
  • (3)
  • (1)
  • (1)
  • (1)
  • (3)
  • (2)
  • (3)
  • (3)
  • (1)
  • (5)
  • (3)
  • (1)

Percent Purity

  • (4)
  • (2)
  • (2)
  • (3)
  • (28)
  • (4)

Form

  • (3)
  • (3)
  • (8)
  • (6)
  • (9)
  • (2)
  • (3)
  • (6)
  • (2)
1 – 15 of 18 results
1

Silicon slugs, 9.5mm (0.375 in.) dia. x 9.5mm (0.375 in.) length, 99.9999% (metals basis), Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si
2

Silicon powder, -325 mesh, 99.999% (metals basis), Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si
3

Silicon plate, 12.5mm (0.5in) thick, 99.999% (metals basis), Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si
4

Silicon rod, 2.5cm (0.98in) dia, 99.999% (metals basis), Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si
5

Silicon powder, crystalline, APS 100nm, 99%, Plasma Synthesized, Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si
7

Silicon lump, 10cm (3.9in) & down, 98.4% (metals basis), Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si
8

Silicon powder, crystalline, -100+325 mesh, 99.999% (metals basis), Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si
9

Silicon powder, crystalline, -325 mesh, 99.999% (metals basis), Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si
10

Silicon rod, polycrystalline, unpolished, 1.6cm (0.6in) dia, 99.9999% (metals basis), Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si
11

Silicon powder, crystalline, -140 mesh, 98% (metals basis), Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si
12

Silicon plate, 6.35mm (0.25in) thick, 99.999% (metals basis), Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si
13

Silicon granular, virgin poly fines, 99.999% (metals basis), Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si
15

Silicon plate, 9.5mm (0.37 in.) thick, 99.999% (metals basis), Thermo Scientific Chemicals

CAS: 7440-21-3 Molecular Formula: Si Molecular Weight (g/mol): 28.09 MDL Number: MFCD00085311 InChI Key: XUIMIQQOPSSXEZ-UHFFFAOYSA-N Synonym: metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831 PubChem CID: 5461123 ChEBI: CHEBI:27573 IUPAC Name: silicon SMILES: [Si]

PubChem CID 5461123
CAS 7440-21-3
Molecular Weight (g/mol) 28.09
ChEBI CHEBI:27573
MDL Number MFCD00085311
SMILES [Si]
Synonym metal,silicone,defoamer s-10,flots 100sco,powder,dust,unii-z4152n8iui,polyeristalline powder,ccris 6599,ccris 6831
IUPAC Name silicon
InChI Key XUIMIQQOPSSXEZ-UHFFFAOYSA-N
Molecular Formula Si