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| Moderator Join Date: Jul 2004 Location: Bronx, NY 10475
Posts: 12,032
Reefer Ratings: (96) Friends: (17) | DUROCK cement board MSDS Excerpt: ENVIRONMENTAL TOXICITY: Portland cement is expected to be toxic to fish due to its high alkalinity (pH > 12). Discharge of large quantities directly into waterways would be expected to cause significant fish kills. |
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