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3.4 สารเคมีและอุปกรณ#

Experiment Chemical Equipment
pH Buffer solution pH meter

Balance, Oven,
Total Solid Content Desiccators, Crucible,

(TSC)
Pipette
Balance, Oven,
Volatile Solid Content Desiccators, Crucible,
(VSC)
Pipette, Muffle Furnace

Test tube, Buret,
K 2Cr 2O 7, H 2SO 4, HgSO 4,
Chemical Oxygen (NH 4) 2SO 4, FeSO 4 ®6H 2O, Pipette, Oven, Ground

Demand (COD) glass, Erlenmayer flask,
Phenanthrolein, monohydrate
Beaker

Volatile Fatty Acid CHOOH, CH 3COOH, Pipette, Beaker,
(VFA) CH 3CH 2COOH, H 2SO 4 , Volumetric flask, Vail,

CH 3CH 2CH 2COOH Syringe filter, HPLC
Pipette, Beaker, Oven,
Balance, Rotary

evaporator, Round
Oil and grease Hexane bottom flask, Heating

(Soxhlet extraction)
mentle, Cellulose
thimble, Soxhlet

extraction
Micro Kjeldahl
Conc.H 2SO 4 , Na 2CO 3, H 3BO 3,
TKN NaOH, CuSO 4 ®5H 20, K 2SO 4, Distillation and

Digestion, Buret, Pipette,
methyl red, bromoglyceral
Beaker