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.
Silicon rod, 0.828cm (0.326in) dia, 99.999% (metals basis)
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]
Silicon rod, polycrystalline, unpolished, 1.6cm (0.6in) dia, 99.9999% (metals basis)
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]
Silicon Metal Lump, Laboratory Grade, Innovating Science™
Molecular Weight (g/mol): 28.09 g/mol
Sigma Organic Chemistry Silicone Elastomer, Sheet, Thickness 3.0Mm, Size 150X150 Mm, 1 Piece | 1EA
Silicone Elastomer, Sheet, Thickness 3.0Mm, Size 150X150 Mm, 1 Piece, 1EA
About This Item:
UNSPSC Code: 12352100
Storage: room temp
Sigma Organic Chemistry Silicon | 10G | 7440-21-3 | MFCD00085311 | >=98% trace metals basis
Silicon, 10G
About This Item:
Linear Formula: Si
Storage: room temp
EINECS Number: 231-130-8
Sigma Organic Chemistry Silicone Elastomer, Sheet, Thickness 3.0Mm, Size 150X150 Mm, 1 Piece | 5EA
Silicone Elastomer, Sheet, Thickness 3.0Mm, Size 150X150 Mm, 1 Piece, 5EA
About This Item:
UNSPSC Code: 12352100
Storage: room temp
Sigma Organic Chemistry Gold coated silicon wafer | 1EA | | MFCD00003436 | 99.99% (Ti); 99.999% (Au)
Gold coated silicon wafer, 1EA
About This Item:
Linear Formula: Au
MDL Number: MFCD00003436
UNSPSC Code: 12352300
Storage: room temp
Sigma Organic Chemistry Silicon monoxide | 1EA0.99999
Silicon monoxide, 1EA
About This Item:
UNSPSC Code: 12352200
Storage: room temp
Sigma Organic Chemistry Aluminum-silicon alloy, Al88Si12 | 5EA
Aluminum-silicon alloy, Al88Si12, 5EA
About This Item:
UNSPSC Code: 12352300
Storage: room temp
Sigma Organic Chemistry Silicon monoxide | 1EA0.99999
Silicon monoxide, 1EA
About This Item:
UNSPSC Code: 12352200
Storage: room temp
Sigma Organic Chemistry Aluminum-silicon alloy, Al99Si1 | 1EA
Aluminum-silicon alloy, Al99Si1, 1EA
About This Item:
UNSPSC Code: 12352300
Storage: room temp
Sigma Organic Chemistry Aluminum-silicon alloy, Al88Si12 | 1EA
Aluminum-silicon alloy, Al88Si12, 1EA
About This Item:
UNSPSC Code: 12352300
Storage: room temp
Sigma Organic Chemistry Silicon monoxide | 1EA0.99999
Silicon monoxide, 1EA
About This Item:
UNSPSC Code: 12352200
Storage: room temp
- 1
- 2