Silicon Powder

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Silicon powder from Spanish production

Production of the highest quality, 99%

screen size distribution: +45 mesh 0% / -45 mesh 100%

Particle shape: amorphous

You will receive this product in a reclosable plastic box

Other components: Si 99%, Fe 0.7%, Ca 0.25%

admixture: carbon and max. 0.2% organic fatty acid

Silicon is a classic semi-metal, therefore it has properties of both metals and non-metals and is an elemental semiconductor.

Pure, elemental silicon has a grey-black colour and a typical metallic, often bronze to bluish shine

Elementary silicon is non-toxic for the human body, in bound silicate form silicon is important for humans

Silicon-containing compounds, especially rocks, have traditionally played an important role in human history as a building material.

A typical example of an early stone structure is Stonehenge

The entire earth consists of about 15 mass percent of silicon;

The earth's mantle in particular is composed of a considerable proportion of silicate rock melts.

The earth's crust consists of about 25.8 percent by weight of silicon, making it the second most common chemical element after oxygen.

Silicon occurs here essentially in the form of silicate minerals or as pure silicon dioxide

Siliceous earth or Silicea terra preparations are offered for ingestion.

They mainly contain silicic acid anhydrides (silicon dioxide) and are intended to strengthen and keep skin, nails, bones and connective tissue healthy

Elemental silicon can be obtained on a laboratory scale by reduction, starting from silicon dioxide or silicon tetrafluoride, with base metals Elemental silicon is used in various degrees of purity in metallurgy (ferrosilicon), photovoltaics (solar cells) and microelectronics (semiconductors, computer chips)

Silicon is combustible as powder like many elements.

As powder and granules it is irritating.

Compact silicon is not dangerous

Hydrogenated porous silicon, i.e. silicon covered on the surface with hydrogen, can be highly explosive when exposed to laser radiation and increased oxygen

inflammable

Signal word: ATTENTION

Security advice

CAS No: 7440-21-3

UN number: 1346

CHEMICAL CHARACTERIZATION:

The metal in compact form is not combustible Practically insoluble in water

EXPLOSION LIMITS:

Lower explosion limit: 80 g/m³

Storage conditions:

Do not use food containers - danger of confusion!

Store in the original container if possible.

Keep container tightly closed in a dry, well-ventilated place.

Store away from ignition and heat sources

Precautions for handling:

Areas, i. e. the substance in dust form can occur, that the possibility of a dust explosion exists, are considered to be explosion endangered

Keep away from ignition sources (e.g. open flames, heat sources and sparks)

DISPOSAL:

No hazardous waste according to the Waste Catalogue Ordinance (AVV)

RESTRICTIONS / PROHIBITIONS ON USE:

Rule/teaching in schools with hazardous substances (BGR/GUV-SR 2003)

Students and teachers are allowed to carry out experiments with this substance without restrictions Substance list GUV-SR 2004 (as of 11.2010)