Skip to Content

尊敬的客户：

目前国际形势复杂多变，关税政策尚不明朗，这可能对我们的产品价格产生一定影响。在此情况下，我们希望就订单事宜与您进行友好沟通。

基于当前的不确定性，如果您选择在此期间下单，我们将保留根据实际情况调整价格的权利。同时，我们也理解市场变化可能给您带来的困扰，因此如果在订单实际发货前因关税政策变动导致价格出现较大波动，默克将与您进行协商讨论并视情况对订单进行调整或取消。

Merck
CN
All Photos(4)

Key Documents

View All Documentation

Safety Information

215619

Sigma-Aldrich

Silicon

powder, −325 mesh, 99% trace metals basis

Sign Into View Organizational & Contract Pricing

Select a Size

25 G
CN¥852.84
100 G
CN¥861.16
500 G
CN¥3,092.76
1 KG
CN¥7,152.31
10 KG
CN¥33,034.01

CN¥852.84

Available to ship onApril 25, 2025Details

Request a Bulk Order
All Photos(4)

Select a Size

Change View
25 G
CN¥852.84
100 G
CN¥861.16
500 G
CN¥3,092.76
1 KG
CN¥7,152.31
10 KG
CN¥33,034.01

About This Item

Linear Formula:
Si
CAS Number:
7440-21-3
Molecular Weight:
28.09
EC Number:
231-130-8
MDL number:
MFCD00085311
UNSPSC Code:
12141911
PubChem Substance ID:
24852908
NACRES:
NA.23

CN¥852.84

Available to ship onApril 25, 2025Details

Request a Bulk Order

Quality Level

100

Assay

99% trace metals basis

form

powder

particle size

−325 mesh

bp

2355 °C (lit.)

mp

1410 °C (lit.)

density

2.33 g/mL at 25 °C (lit.)

SMILES string

[Si]

InChI

1S/Si

InChI key

XUIMIQQOPSSXEZ-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
117458169101174580891011685597910
生物素标记缺口转录混合物 suitable for hybridization, solution, sufficient for 40 labeling reactions, pkg of 160 μL

11745824910

生物素标记缺口转录混合物

DIG-切口平移混合物 sufficient for 40 labeling reactions, pkg of 160 μL, suitable for hybridization

11745816910

DIG-切口平移混合物

缺口转录混合物 sufficient for 50 labeling reactions, pkg of 200 μL, solution

11745808910

缺口转录混合物

生物素RNA标记混合物 sufficient for 20 reactions (transcription), pkg of 40 μL, solution

11685597910

生物素RNA标记混合物

technique(s)

hybridization: suitable

technique(s)

hybridization: suitable

technique(s)

nucleic acid labeling: suitable

technique(s)

-

form

solution

form

solution

form

solution

form

solution

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

usage

sufficient for 40 labeling reactions

usage

sufficient for 40 labeling reactions

usage

sufficient for 50 labeling reactions

usage

sufficient for 20 reactions (transcription)

packaging

pkg of 160 μL

packaging

pkg of 160 μL

packaging

pkg of 200 μL

packaging

pkg of 40 μL

General description

Silicon powder is a fine, gray powder. This silicon powder has been passed through a 325-mesh screen, meaning that the particles are small enough to pass through a sieve with openings that are approximately 44 thousandths of an inch in diameter. Silicon is a chemical element and is a hard, brittle, metallic-gray solid that is highly resistant to chemical attack and has a high melting point. Silicon is the second most abundant element in the Earth’s crust and is found in a variety of minerals.

Application

Silicon can be used as anode material in lithium-ion batteries.

It can be used to fabricate Al2O3-C refractories. The silicon powder generates β-Sialon whiskers which imparts high-temperature strength, slag resistance and thermal shock resistance of the refractories.

It can be incorporated into high-densitypolyethylene (HDPE) polymer composites. The addition of silicon powder enhancesthermal stability and thermal conductivity of composites.

Pictograms

Flame
GHS02

Signal Word

Warning

Hazard Statements

H228

Hazard Classifications

Flam. Sol. 2

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品
  • Specification Sheet

    • Choose from one of the most recent versions:

    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCT8391
    MKCR9919
    MKCP7149
    MKCK6629
    MKCG5658

    Don't see the Right Version?

    If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

    Search for a COA

    Already Own This Product?

    Find documentation for the products that you have recently purchased in the Document Library.

    Visit the Document Library

    Jae Cheol Shin et al.
    Journal of nanoscience and nanotechnology, 13(5), 3511-3514 (2013-07-19)
    We have characterized the structural properties of the ternary In(x)Ga(1-x)As nanowires (NWs) grown on silicon (Si) substrates using metalorganic chemical vapor deposition (MOCVD). Au catalyzed vapor-liquid-solid (VLS) mode was used for the NW growth. The density of the In(x)Ga(1-x)As NW
    Seungil Park et al.
    Journal of nanoscience and nanotechnology, 13(5), 3397-3402 (2013-07-19)
    We investigated the thin film growths of hydrogenated silicon by hot-wire chemical vapor deposition with different flow rates of SiH4 and H2 mixture ambient and fabricated thin film solar cells by implementing the intrinsic layers to SiC/Si heterojunction p-i-n structures.
    Jaewoo Lee et al.
    Journal of nanoscience and nanotechnology, 13(5), 3495-3499 (2013-07-19)
    A spin-casting process for fabricating polycrystalline silicon sheets for use as solar cell wafers is proposed, and the parameters that control the sheet thickness are investigated. A numerical study of the fluidity of molten silicon indicates that the formation of
    Bo-Soon Kim et al.
    Journal of nanoscience and nanotechnology, 13(5), 3622-3626 (2013-07-19)
    A subwavelength structure (SWS) was formed via a simple chemical wet etching using a gold (Au) catalyst. Single nano-sized Au particles were fabricated by metallic self-aggregation. The deposition and thermal annealing of the thin metallic film were carried out. Thermal
    Chengyong Li et al.
    Journal of nanoscience and nanotechnology, 13(3), 2272-2275 (2013-06-13)
    Mesoporous Si-C-O fibers were fabricated by air activation of a kind of carbon-rich SiC-C fibers at 600 degrees C. The SiC-C fibers were prepared from the hybrid precursor of polycarbosilane and pitch through melt-spinning, air curing and pyrolysis in nitrogen.
    View All Related Papers

    Articles

    Self-Propagating Reactions Induced by Mechanical Alloying

    An article concerning self-propagating reactions induced by mechanical alloying, presented by Sigma-Aldrich.com.

    Recent Developments in Silicon Anode Materials for High Performance Lithium-Ion Batteries

    Recent demand for electric and hybrid vehicles, coupled with a reduction in prices, has caused lithium-ion batteries (LIBs) to become an increasingly popular form of rechargeable battery technology.

    Silicides: Promising Thermoelectrics

    Higher transition metal silicides are ideal for anisotropic thermoelectric conversion due to their Seebeck coefficient anisotropy and mechanical properties.

    Electrode Materials for Li-ion Batteries

    Solid oxide fuel cells and electrolyzers show potential for chemical-to-electrical energy conversion, despite early development stages.

    See All

    Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

    Contact Technical Service