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Formaldehyde expiration
I have a gallon of Paracide ( Formaldehyde 37% solution from Argent
Lab) left from the early 90s. Has an expiration date 1994. The stuff is still crystal clear, no whitish formation on bottom. Stored in garage never below 40F. Can I still use the stuff for Koi pond ? Its still Formaldehyde ain't it ? |
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