| Company Name: | Meryer (Shanghai) Chemical Technology Co., Ltd. |
| Tel: | +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing) |
| Email: | sh@meryer.com |
| Products Intro: |
Product Name:SILANE, 7.0 - 7.5% in argon
CAS:7803-62-5
Purity:15-17% in nitrogen Package:100g Remarks:SIS6950.1 |
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| | Silicon tetrahydride Basic information |
| | Silicon tetrahydride Chemical Properties |
| mp | -185 °C | | bp | -112 °C | | density | 1.114 g/mL at 25 °C(lit.)
| | vapor density | 1.1 (vs air)
| | Merck | 13,8562 |
| Hazard Codes | F+,Xn | | Risk Statements | 12-17-20 | | Safety Statements | 9-16-33-36/37/39 | | RIDADR | UN 2203 2.1
| | WGK Germany | 1
| | RTECS | VV1400000
| | TSCA | Yes | | HazardClass | 2.1 |
| | Silicon tetrahydride Usage And Synthesis |
| General Description | Silicon tetrahydride is a colorless, flammable and poisonous gas, with a strong repulsive odor. Silicon tetrahydride is easily ignited in air, reacts with oxidizing agents, is very toxic by inhalation, and is a strong irritant to skin, eyes and mucous membranes. Silicon tetrahydride is lighter than air. Under prolonged exposure to fire or heat the containers may rupture violently and rocket. Silicon tetrahydride is used in the production of amorphous silicon. | | Air & Water Reactions | Highly flammable. Pure state ignites in air, the first seven to eight of the series 6H2n+1 ignite spontaneously in air at room temperature or slightly elevated temperatures [Mellor 1:376 1946-47]. Slowly reacts with water to form silicon hydroxides and hydrogen gas. | | Reactivity Profile | Slowly reacts with water to form silicon hydroxides and hydrogen gas [Hydrides of the Elements of Main Groups I - IV 1971 p.513]. Silicon tetrahydride burns in contact with bromine, chlorine or covalent chlorides (carbonyl chloride, antimony pentachloride, tin(IV) chloride). Even traces of the free halogens may cause violent explosions, when handling Silicon tetrahydride, extreme caution should be taken, [Mellor, 1940, Vol. 6, 220]. Mixtures of Silicon tetrahydride and nitrogen oxides, nitrous oxide, detonate very easily, [Chem. Abs., 1990, 112, 121711]. | | Health Hazard | Vapors may cause dizziness or asphyxiation without warning. Some may be toxic if inhaled at high concentrations. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire may produce irritating and/or toxic gases. | | Fire Hazard | EXTREMELY FLAMMABLE. Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air. Silicon tetrahydride will ignite spontaneously in air. Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Cylinders exposed to fire may vent and release flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket. |
| | Silicon tetrahydride Preparation Products And Raw materials |
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