Zinc Carbonate
The fine particle-size-distribution of zinc carbonate results in a maximum amount of surface area for fast, efficient sulfide scavenging and is effective in water-base and oil- or synthetic-base fluids.
Application & Uses
Under operating conditions, zinc carbonate reacts with sulfides to form zinc sulfide (ZnS), which has an extremely low solubility in water (0.0096 g/mL). Drilling fluids should not be acidified; otherwise, hydrogen sulfide could be liberated.
Dosage & Directions for Use
zinc carbonate is effective as a scavenger at the pH levels found in drilling fluids. It is recommended that a pH above 10 be maintainedb whenever H2S is expected. This high alkalinity converts the dangerous H2S gas to less toxic bisulfide (HS-) and sulfide (S2-) ions. The alkaline pH (>10) allows an extra margin of safety.
Technical Specifications & Properties
Typical Physical Properties
| Physical appearance | White powder |
| Specific gravity |
3.5 |
| Zinc content | 55% minimum |
| Solubility in water |
Insoluble |
Packaging and Storage
zinc carbonate is packaged in multi-wall, paper sacks; packing container sizes will vary based on local area of purchase.
Store in a dry location away from sources of heat or ignition, and minimize dust.
Recommended Industrial & Shipboard Areas
Product Description & Chemical Profile
The fine particle-size-distribution of zinc carbonate results in a maximum amount of surface area for fast, efficient sulfide scavenging and is effective in water-base and oil- or synthetic-base fluids.
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