All Tanks should be inspected and checked for VOC levels before cleaning begins. Verify that no liquid is in the sump area and the tank has been fully drained. If residue is in the sump area, follow proper procedure for emulsifying or encapsulating material before neutralizing flammable vapors.
A 3% solution of Vapo-Lock is applied through the John-Henry Simplicity Fogger when only flammable vapors remain, and via spinner system where substantial flammable heel remains. All applications should be applied below 180°F. Benzene and H2S levels will be reduced, with benzene levels less than 1 ppm. The concentration of vapors will be below the LEL. Thicker deposits and sludge can be quickly removed. The same 3% solution may be applied to tank exteriors using a scrub brush to remove deposits, followed by a water rinse. Personnel are safe from the dangers of low flash point solvents or degreasers and are not contributing to the waste by using diesel fuel as a solvent.
Appearance………………. Clear, water white liquid
Odor…………………………… Slight
pH……………………………… 10.5 – 11.5
Specific gravity…………….. 1.01
Solubility in water………… Disperses / Emulsifies
Hard water tolerance…… Excellent
Viscosity……………………… Same as water
Percent Volatile…………… 10-30%
Butyl Cellosolve……………. None
Flash point…………………… > 200 deg. F
Storage Stability………….. Excellent, 1 year minimum
EYES: Severely irritating and may cause temporary blurring of vision.
SKIN: Prolonged or repeated exposure may cause skin irritation and dermatitis.
INGESTION: Causes irritation to mouth, throat, esophagus, and gastrointestinal system .May cause gastrointestinal discomfort, including nausea, vomiting, diarrhea, etc
INHALATION: Mists, sprays, or vapor can be irritating to eyes and respiratory tract.
