Magnesium Carbonate
Specified where trace calcium, chloride and iron would show up in the fired body or the final formulation. The carbonate route to MgO for electronic ceramics, and a controlled magnesium source for fine-chemical use.
CAS 13717-00-5 · MgCO₃
Minimum order quantity, lead time and packing depend on the grade and the order size — confirm them with us on an inquiry.
Full specification in the batch TDS
What you see above is what we publish openly. The complete parameter set — including the values still marked to be confirmed — is issued with the batch technical data sheet. Download the current TDS, or ask us for the full specification and the latest certificate of analysis.
| Specifications | Guaranteed value | Typical value | |
|---|---|---|---|
| MgO basis (%) | On request | On request | On request |
| CaO (%) | On request | On request | On request |
| Chloride (Cl-) (%) | On request | On request | On request |
| Iron (Fe) (%) | On request | On request | On request |
| Acid insoluble matter (%) | On request | On request | On request |
| Loss on ignition (%) | On request | On request | On request |
| Bulk density (g/ml) | On request | On request | On request |
| Particle size D50 (µm) | On request | On request | On request |
| Moisture (%) | On request | On request | On request |
| Whiteness (%) | On request | On request | On request |
Cells marked Values marked "On request" are grade-specific; our technical team issues them with the full data sheet.
25 kg multi-wall kraft bags with PE inner liner, palletised
Store sealed, dry, off the floor, in delivery order. Magnesium compounds pick up moisture and CO₂ from air.
Full Product Catalogue
Magnesium Oxide Grade Table
Magnesium Hydroxide Grade Table
Magnesium Carbonate Grade Table
Packing & Storage Guide
Sample Certificate of Analysis (example)
The hydrated form of MgCO₃, with a higher loss on ignition than the normal grade. Decomposes to MgO on firing, which is why it is used as a ceramic precursor — and its fine, bulky structure is why rubber and flame-retardant compounders use it as a reinforcing filler.
View detailsThe low-bulk-density, high-specific-volume form of MgCO₃: very fine, bulky, easy to disperse. Used for rubber reinforcement and as a carrier and anti-caking agent in food and pharmaceutical powders.
View detailsGeneral-purpose MgCO₃ for industrial filling and processing use.
View detailsIt is a vulcanising agent and a vulcanisation activator — not an accelerator and not a filler. MgO controls scorch time, raises crosslink density and neutralises the acidic by-products of vulcanisation. If you dose it as if it were a filler, the compound will not cure the way your formulation expects.
Bulk density. Light grades have low bulk density and high specific surface area — they react faster and occupy more volume per kilogram. Heavy grades are dense and free-flowing. Light is the conventional choice for rubber; heavy suits technical ceramics and volume-limited processes. A container of light material fills by volume long before it fills by mass, so quote by tonne and plan by cubic metre.
Active MgO has a high specific surface area — ZH-M600 runs at 175 m²/g minimum and ZH-V150 at 150 m²/g. Specify it when reactivity is what your formulation is short of: adsorbents for harmful gases, electronic components, inks, and rubber or plastics where it functions as both filler and reinforcing agent. If the constraint is purity rather than reactivity, ZH-V2 or ZH-V3H is the right choice instead.
Minimum order quantity, lead time and packing depend on the grade and the order size — confirm them with us on an inquiry.