The Chemical Substances Hazardous ang dangerous for humans

Chemical Substances Hazardous There are chemicals that are harmful to humans , among others :
a. Aluminum sulfate (also 4 )
Shaped white crystals , soluble in water . Sulfatdigunakan aluminum instead of alum .
b concentrated ammonia ( NH 4OH )
Concentrated solution of ammonia gas in water , if exposed to the skin and eyes can cause irritation . In vapor form may interfere with breathing . Ammonia concentrated very dangerous if swallowed .
c . Sulfuric acid ( H 2SO 4 )
Sulfuric acid is a colorless liquid , toxic and highly corrosive . Sulfuric acid can cause burns to skin , eyes , and can damage clothing .
d . Hydrochloric acid ( HCl )
Hydrochloric acid is a liquid , toxic , corrosive , and is in vapor form can damage the skin , eyes , and respiratory apparatus .
e . Ethanol ( C 2H3OH )
Ethanol is often called alcohol . Ethanol has flammable properties and is used as a solvent .
ff f ... Or ormalin malin for 40 % ( HCHO ) Formalin is toxic , either liquid or gas . Formalin is used to kill pests .
g . Klorofrom ( CHCl 3 )
Chloroform is a colorless liquid and is toxic . Chloroform is used as an anesthetic in the laboratory .
h . Beer Metilin Blue
Metilin intangible dark blue solid . These chemicals are used as coloring the cell nucleus .
i . Sodium hydroxide ( NaOH )
Sodium hydroxide is a white solid , easy to absorb moisture , air , toxic and corrosive . Sodium hydroxide including hazardous material that can cause burns to skin and eyes .
j . Cobalt chloride ( CoCl 6H2O )
Cobalt chloride is a solid , red crystal , it is very easy to absorb water , and can bind water vapor . Cobalt chloride is used to test the air humidity .
k . Sodium Chloride ( NaCl )
Sodium chloride is a white solid substance , shaped crystals . Sodium chloride is also known as table salt .