As LPG, Natural Gas do not have any smell, Ethyl Mercaptan is dosed is small quantities to give that smell. This is provided as a safety precaution to detect leakage by its smell.
TRI SODIUM PHOSPATE
TRI SODIUM PHOSPATE is used as a dosing chemical in Boilers to remove scale, sludge.
HYDRAZINE
HYDRAZINE is used as a dosing chemical in Boilers to remove dissolved oxygen.
SILICA GEL
Silica Gel is used as a dryer in Oil and gas Industry