广东快乐十分开奖结果

Toll free:+86-400 882 8982 中文 ENG

Sb

Antimony is a chemical element with the symbol Sb (Latin: stibium, meaning "mark") and atomic number 51. A metalloid, antimony has four allotropic forms. The stable form of antimony is a blue-white metalloid. Yellow and black antimony are unstable non-metals. Antimony is used in flame-proofing, paints, ceramics, enamels, a wide variety of alloys, electronics, and rubber.

Antimony in its elemental form is a silvery white, brittle, fusible, crystalline solid that exhibits poor electrical and heat conductivity properties and vaporizes at low temperatures。 A metalloid, antimony resembles a metal in its appearance and in many of its physical properties, but does not chemically react as a metal。 It is also attacked by oxidizing acids and halogens。 Antimony and some of its alloys are unusual in that they expand on cooling。 Antimony is geochemically categorized as a chalcophile, occurring with sulfur and the heavy metals lead, copper, and silver。

Estimates of the abundance of antimony in the Earth's crust range from 0.2 to 0.5 ppm.

TECHNICAL DATA
SymbolSbDensity (25°C)/gcm-36.691
Atomic number51Melting point / °C630.74
Atomic weight121.75Boiling point / °C1587
Electronic configuration[Kr] 4d105s25p3rcov(MIII single bond)/pm140
Ionization energy/MJmol-1 I0.834rionic(6-coordinate)(MIII)/pm76
II1.595(6-coordinate)(Mv)/pm60
III2.443Hardness (Mohs)3.35
Sum (I+II+III)/MJmof-14.872Electrical resistivity (20°C)/μohm cm41.7
Sum (IV+V)/MJmof -19.636Contraction on freezing/%0.8
Electronegativity χ1.9

EVAPORATION TECHNIQUES
Temperature (oC) @Vap. PressureTechniquesRemarks
10-8 Torr10-6 Torr10-4 TorrElectron BeamCrucibleCoilBoat
279 Sublimes345 Sublimes425 SublimesPoorBN, Graphite & Al2O3Molybdenum & TantalumMolybdenum, Tantalum coated with Al2O3Toxic, evaporates well. Film structure is rate dependent.



Sb
Sputtering Targets
Matierial SymbolAtomic Number     Thermal Conductivity         Theoretical Density 
W/m.K           g/cc
广东快乐十分开奖结果Antimony_SbSb51246.62


Below is the periodic table of chemical elements。The elements in red are the ones Nexteck's product contain。 Click them, you will come to the details。

广东快乐十分开奖结果24-hour hotline:+86-400 882 8982

logo.png

Providing real-time and high quality service

NEXTECK (CHINA) - SHENZHEN
Tower A1001, Galaxy Century, No 3069, CaiTian Rd, Futian District, Shenzhen, China
Zip Code: 518026
Tel: +86-755-8256-1631
Fax:+86-755-8256-1691
E-mail:nexteck@chinajddz.com
Hotline:+86-400 882 8982

PRODUCTION PLANT
Wenchuan Rd, Alley 5300/1, Baoshan District, Shanghai, China
Zip Code: 200942
Tel: +86-21-3638-0189
Fax: +86-21-3638-0109
E-mail: nexteck@chinajddz.com.cn

快赢彩票 快赢彩票 天津11选5分布走势图 陕西快乐十分开奖结果 贵州快3 河南快3走势 河南快3开奖结果 江苏快3走势图 黑龙江快乐十分开奖结果 陕西快乐十分