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Silicon, powder

BGC Id:	160851300835
CAS No:	7440-21-3
Synonyms:	silicium ; silicon 100 ; sicomill 4c-p ; kdb 20 ; si007915 ; 4fy ; 111> ; polysilicon ; polyeristalline silicon powder ; silgrain ; metasilicon 325a ; si(100) wafer ; gko 3516a ; si002050 ; silgrain hq ; biosilicon ; phc20 ; silgrain standard ; jt 02 ; cz-n polished wafer ; kdb 0.5 ; si002015 ; si007908 ; hexsil ; feb 450d ; sharp 80w ; silicon ; si002011 ; silicon element ; silicon metal ; si003077 ; hgh600 ; sicomill grade 2 ; si 1059 ; silso ; si002012 ; kdb 10 ; kdb 0.1 ; aldrich 267414-25g ; kr 1
Molecular Formula:	H4Si
Molecular Weight:	28.08
EINECS:	231-130-8

The most competitive supplier in 2025

The following 4 notable providers have been checked and can be recommended.

ProChem

Zyntex

Anderson & Steinssen

Hangzhou Verychem Science & Technology

What other providers are available for CAS 7440-21-3?

The last intensive check and update was carried out on 2025/05/28.

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Synonyms:

silicium ; silicon 100 ; sicomill 4c-p ; kdb 20 ; si007915 ; 4fy ; 111> ; polysilicon ; polyeristalline silicon powder ; silgrain ; metasilicon 325a ; si(100) wafer ; gko 3516a ; si002050 ; silgrain hq ; biosilicon ; phc20 ; silgrain standard ; jt 02 ; cz-n polished wafer ; kdb 0.5 ; si002015 ; si007908 ; hexsil ; feb 450d ; sharp 80w ; silicon ; si002011 ; silicon element ; silicon metal ; si003077 ; hgh600 ; sicomill grade 2 ; si 1059 ; silso ; si002012 ; kdb 10 ; kdb 0.1 ; aldrich 267414-25g ; kr 1

CAS:

7440-21-3

EINECS:

231-130-8

Molecular Formula:

H4Si

MDL:

MFCD00085311

Properties

Molecular Weight:

28.08 g·mol−1

Density:

2.33 g/mL at 25 °C(lit.)

Melting point:

1410 °C(lit.)

Boiling point:

2355 °C(lit.)

Solubility:

insoluble in water

Physical Description:

grey lustrous solid or grey powder

Suppliers

ProChem, Inc.

ProChem, Inc. was established in 1986 to supply quality chemical products at competitive prices. We are now celebrating 30 years of chemical manufacturing. Our philosophy at ProChem Centers on our customers Needs and the Quality of our products. We are supplier of Europium acetate.

Country: USA Phone: +1 (815) 398-1788 Telefax: +1 (815) 398-1810

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Zyntex Ltd

Company type: Bulk chemical supplier

Country: Türkiye

As Zyntex, we have been providing reliable solutions at global standards in the pharmaceutical raw materials and specialty chemicals sector since our establishment. The mission of contributing to human health and supporting technological progress is at the center of our activities. Our wide range of products ranges from pharmaceutical active ingredients to food supplements, from feed additives to innovative chemical products. Our Quality and Trust-Oriented Approach Zyntex ...

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Anderson & Steinssen Inc

Yttrium aluminum garnet, chromium-doped will be also provided by us. Anderson & Steinssen Inc is a new materials supplier with technology information sharing, THE BEST INGREDIENTS

Company type: Bulk chemical supplier

Country: USA
Phone: +1 206 556 7669
Telefax: +1 425 5299207

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Hangzhou Verychem Science & Technology Co., Ltd.

Company type: Producer

Hangzhou Verychem Science And Technology Co. Ltd. is a technology based company located in the city of Hangzhou, combined with and technologically directed by Zhejiang Industry University and Shengyang Pharmaceutical College. Hangzhou Verychem Science & Technology Co., Ltd. is a seller of S-2-Benzylsuccinic acid. Though Verychem is a young company, but it's a booming company with dynamic vigor and prosperous prospect. Verychem develops and manufactures latest pharmaceuticals, special fine chemicals and some of the developed projects have been technologically tran ...

Country: P.R.China Phone: +86-571-8816 2785 Telefax: +86-571-81906939

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Safety Information

Hazard Symbols: F, T

Europe standard Hazard pictograms, code and definition

Hazard Classes:

4.1

Hazardous Substances Data:

Non-Regulated Material ¹

Risk Codes:

11 (R)

Safety Codes:

26-36/37-45-7/9-33-16-36 (S)

WGK Germany:

RID / ADR:

UN 2922 8 / PG 2

RTECS:

VW0400000

Storage temperature:

Flammables area

What other providers are available for CAS 7440-21-3?

In addition to the providers presented here for Silicon, powder with the CAS number 7440-21-3, there are other 75 providers with slightly different product names available for this CAS number.