If that container was ever an operational container, please note at one time it contained:
Diethylenetriamine - 69-71% TLV: 4.2 mg/m3 (1 ppm) (skin)
Sodium Hydroxide - 1.9-2.1% TLV: 2 mg/m3 (ceiling)
Ethylene Glycol Monomethyl Ether - 26.9-29.1% TLV: 16 mg/m3 (5 ppm) (skin)
DS2 is an alkali and with direct contact will corrode tissue, e.g., skin, eye, respiratory mucosa or gastric mucosa. The effects exhibited depend on route of exposure, amount of substance present, and duration of exposure. Health effects can range from mild burns and primary irritation to corneal opacification, severe burns and esophageal stricture.
Sufficient exposure to EGME, a major component of DS2, may cause central nervous system depression and liver damage. Although not definitely established in humans, reproductive effects (including teratogenisis) are also a major concern with this substance. The National Institute for Occupational Safety and Health (NIOSH) recommends that EGME be regarded in the workplace as having the potential to cause adverse reproductive effects in male and female workers.