(10-11) F3 Chemistry Individual Project Work Ionic & Covalent compounds Name: Esther Wong Class: 3C...
-
Upload
lucas-hill -
Category
Documents
-
view
216 -
download
0
Transcript of (10-11) F3 Chemistry Individual Project Work Ionic & Covalent compounds Name: Esther Wong Class: 3C...
(10-11) F3 Chemistry Individual Project WorkIonic & Covalent compounds
Name: Esther WongClass: 3CClass no: (35)
MgOMagnesium Oxide
(Electron diagram)
Boiling point & Melting point High Boiling point : 3600 &℃ Melting point : 2827 ± 30℃
Color & Physical state White, tasteless powder (solid)
Density 3.58 g/ cm3
Solubility in water Very slightly ( 0.086 g/ L )
Electrical conductivity It is a good electrical insulator
Molecular Weight 40.31 g/mol
Physical properties of MgO
Reactivity towards Water and Acid Water: it will form Magnesium Hydroxide
Acid: gives Magnesium Nitrate and water.
Storage & Laboratory preparation Store in cool and dry places. Keep away from strong acids.
Don’t touch it with bare skin.
Make sure all the touching surfaces are completely dry.
Wash thoroughly after handing it.
Chemical properties of MgO
It is basic Both oxidising and reducing.
Cause eyes irritation.
Cause respiratory tract (呼吸道 ) irritation.
Inhalation (吸入 ) of the fumes of MgO may cause fever.
The bright light produced will emit harmful intensity of UV light.
Potential hazards
Eyes Gently lift the eyelids & flush continuously with water.
Skin (bare skin) Flush with PLENTY of water, remove the contaminated clothing.
Ingestion DON’T induce vomiting or drink water!
Inhalation Remove to fresh air environment
First Aid Measures
The End~
List of the resources :http://en.wikipedia.org/wiki/Magnesium_oxide
http://www.magnesiaspecialties.com/students.htm
http://www.ehow.com/about_4709013_common-uses-magnesium-oxide.html
http://www.magnesiaspecialties.com/students-mining.htm
http://kidshealth.org/parent/medications/magnesium_oxide.html