7440-21-3|SiliconProducts Supply - Chemical intermediates Network

Silicon cas no:7440-21-3

Synonyms: silicon coating quality balzers; silicium; silicon, containing by weight not less than 99.99 % of silicon; SiliconpowderNmesh; Silicon Monocrystalline; SiliconchipsNmm; SiliconrandompiecesNcm; Silicon wafer orientation P-doped; Silicon wafer orientation; Silicon powder; Siliconwaferorientation; Siliconwafer; Silicon (low oxygen); Silicon (3 oxygen levels); Silicon chips (99.9999%); Silicon random pieces (99.5%); Silicon solution 1000 ppm

Identification

NameSilicon
CAS7440-21-3
Synonymssilicon coating quality balzers; silicium; silicon, containing by weight not less than 99.99 % of silicon; SiliconpowderNmesh; Silicon Monocrystalline; SiliconchipsNmm; SiliconrandompiecesNcm; Silicon wafer orientation P-doped; Silicon wafer orientation; Silicon powder; Siliconwaferorientation; Siliconwafer; Silicon (low oxygen); Silicon (3 oxygen levels); Silicon chips (99.9999%); Silicon random pieces (99.5%); Silicon solution 1000 ppm
EINECS(EC#)231-130-8
Molecular FormulaSi
Molecular Weight28.08

Chemical Properties

Appearancesilver-gray solid.
storage tempFlammables area

Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)

Hazardclass4.1

Safety Data

Hazard F:Flammable
Risk R11
Safety

A nuisance dust. Moderately toxic by ingestion. An eye irritant. Does not occur freely in nature, but is found as silicon dioxide (silica) and as various silicates. Elemental Si is flammable when exposed to flame or by chemical reaction with oxidizers. Violent reactions with alkali carbonates, oxidants, (Al + PbO), Ca, Cs₂C₂, Cl₂, CoF₂, F₂, IF₅, MnF₃, Rb₂C₂, FNO, AgF, NaK alloy. When heated it will react with water or steam to produce H₂; can react with oxidizing materials.
Hazard Codes:? Toxic T,F
Risk Statements: 11?
R11:Highly flammable.
Safety Statements: 26-36/37-45-7/9-33-16-36?
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
S36/37:Wear suitable protective clothing and gloves.?
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)?
S7:Keep container tightly closed.?
S9:Keep container in a well-ventilated place.?
S33:Take precautionary measures against static discharges.?
S16:Keep away from sources of ignition.?
S36:Wear suitable protective clothing.
RIDADR: UN 2922 8/PG 2
WGK Germany: 2
RTECS: VW0400000
TSCA: Yes
HazardClass: 4.1
PackingGroup: III

Toxicity

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
rat	LD50	oral	3160mg/kg (3160mg/kg)	?	FAO Nutrition Meetings Report Series. Vol. 53A, Pg. 21, 1974.
rat	LDLo	intraperitoneal	500mg/kg (500mg/kg)	SENSE ORGANS AND SPECIAL SENSES: OTHER CHANGES: OLFACTION SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION	National Technical Information Service. Vol. OTS0536164,

supplier list

Wenzhou Huaqiao Chemical Reagent Co., LTD.: Tel:; Address: 305-4-5shangdoumen xincun wenzhou

Neelam Aqua & Speciality Chem (P) Ltd.: Tel:+91-141-2331539; Address: H-337 (D) Road No. 17, VKI Area,Jaipur - 302013 (Raj.) INDIA.

Beijing Hengye Zhongyuan Chemical Co., Ltd.: Tel:+86-(10)-8580-1612; Address: Room 901, Block D, Soho Modern City, 88 Jianguo Road, Chaoyang District, Beijing,

Emerson & Cuming France: Tel:+33-(0)-4 74 02 3960; Address: Zone Industrielle Nord - B.P. 438, Villefranche Cedex F-69655,

Goldschmidt GmbH: Tel:+49-(201)-173-01; Address: Goldschmidstrasse 100, Essen 45127,

Wacker Chemie AG: Tel:+49-(89)-6279-0; Address: Hanns-Seidel-place 4, M?nchen 81737,

KPL International Limited: Tel:+91-(11)-43606200; Address: Statesman House, 10th Floor, 148, Barakhamba Road, Kolkata, Delhi 110 001,

Reliance Silicones (India) Ltd.: Tel:; Address:

Chemokraft: Tel:+91-(22)-24161842; Address: B-902, Rajgir Court,Kohinoor Road, Dadar-East, Mumbai, Maharashtra 400 014,

Nippon Denko Co. Ltd.: Tel:+81-(3)-35469333; Address: 13-14,1-chome,Tsukiji, Chuo-ku, Tokyo 104-8112,

Tokuyama Soda Co Ltd: Tel:+81-(3)-3499-8030; Address: Shibuya Konno Bldg. 3-3-1, Shibuya, Shibuya-ku, Tokyo 150-8383,

Gulf Ferro Alloys Co.: Tel:+966-(3)-358-4444; Address: P.O. Box 11823, Jubail Industrial City 31961,

Atlantic Metals & Alloys, Inc.: Tel:203-359-8881; Address: P.O. Box 589, Stratford, Connecticut 06615,

Gelest Inc.: Tel:+1-(215)-547-1015; Address: 11 East Steel Road, Morrisville, Pennsylvania 19067,

GE Silicones: Tel:+1-(800)-332-3390; Address: 260, Hudson River Road, Waterford, New York 12188,

Silicon cas no:7440-21-3

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