Magnesium Sulphide City Chow F.3B (9) Chemistry Individual Project - Presentation

Basic Information  Molecular fomula: MgS  Each formed by the reaction of sulphur (S) or hydrogen sulphide with magnesium (Mg).  Type: Ionic bonds  Molar mass: g/mol  Electron diagram:

Physical PropertiesPhysical Properties  Melting point / Boiling point:: >2000°C / undefined  Physical state at room temperature: solid  Colour: white, red, or pale red brown  density: 2.68 g/cm3  solubility in water: decomposes  Appearance: white, pale red to reddish-brown crystalline solid

Chemical properties Reactivity:  MgS reacts with water to give hydrogen sulphide and magnesium hydroxide. (i.e. MgS evolves hydrogen sulphide upon contact with moisture.) Laboratory Preparations:  Store in tightly closed containers in a cool, dry place.  Wash hands and face after use.  Handle in a controlled atmosphere.  Extinguishing media: Use dry chemical, CO2 or graphite. DO NOT USE WATER.

Chemical properties Protection:  Respiratory: Wear dust-mist-fume respirator.  Hands / Skin: Wear gloves made of Neoprene( 氯丁橡膠 )  Eyes: Safety goggles or glasses.  Other Protective Clothing or Equipment: Wear protective clothing to prevent contamination of skin and clothes.

UsesUses It is generated industrially in the production of metallic iron.

Potential Hazards  Inhalation ( 吸入 ): May cause sneezing, coughing, difficulty breathing, and irritation of the respiratory tract.  Contact with skin: May cause irritation, itching, and dermatitis ( 皮膚炎 ).  Contact with eyes: May cause burning sensation, irritation, redness and watering of the eyes if it comes in contact.

FurthermoreFurthermore ☻ Element analysis: Element Symbol Atomic Mass # of Atoms Mass Percent MagnesiumMg % SulphurS % ☻ Stability: Stable

ResourcesResources  Kosmix:  Yahoo!:  Flickr:  Wikipedia:  Columbia Analytical Services: 9/ 9/

Thank You! Chemistry Individual Project - Presentation End.