Magnesium Carbonate Powder
Suitable for buyers sourcing magnesium carbonate powder for antacid, magnesium-support, anti-caking, absorbent, and formulation-support applications, with review typically focused on grade, assay direction, handling profile, and destination-market document requirements.
- Available for food, pharmaceutical, supplement, and selected industrial application review
- Commonly evaluated for antacid, magnesium-source, anti-caking, and absorbent formulation uses
- COA, SDS/MSDS, and TDS/specification sheet available according to product scope
- Bulk packing and export support available for international sourcing projects
Tell us your application, target specification, and destination market so we can support grade selection, documentation review, and packaging recommendations.

Quick Specs
Identity
Alias
CAS Number
Molecular Formula
Molecular Weight
Quality
Assay
Grade
Standards
Assay Method
Handling
Appearance
Form
Solubility
Applications
Commercial Terms
MOQ
MOQ depends on packaging and specification.
Lead Time
3–7 working days for standard items; bulk orders by schedule.
Incoterms
EXW / FOB / CIF / DAP / DDP
Sample
Free sample (shipping charged)
Quality & Documents
COA (per batch) • SDS/MSDS • TDS/Spec sheet (on request). Additional statements depend on product and market.
Product Overview
Magnesium Carbonate Powder is an inorganic magnesium compound commonly reviewed for antacid, magnesium-source, anti-caking, absorbent, and formulation-support applications across food, supplement, pharmaceutical, and selected industrial projects.
It is typically supplied as a white powder, and buyers usually evaluate grade direction, assay range, handling profile, packaging format, and document scope before technical or commercial review.
It is commonly considered for tablets, powder blends, food additive systems, and selected industrial absorbent or filler applications, with sample support and bulk-supply documentation available for sourcing reference.

Comparison
Use the comparison below to identify when magnesium carbonate may be a better fit for your formulation target and sourcing direction.
| Criteria | Magnesium Carbonate | Magnesium Citrate | Magnesium Oxide |
|---|---|---|---|
| Core role | Commonly positioned for antacid, powder-system, anti-caking, absorbent, and formulation-support applications where grade direction and handling profile matter. | Commonly positioned for supplement and nutrition systems where broader formulation flexibility and magnesium supplementation are key priorities. | Mainly positioned for standard magnesium input and cost-sensitive projects where a basic magnesium form is sufficient for the intended use. |
| Best for | Antacid tablets, powder blends, food additive systems, and selected projects where powder behavior, packaging, and specification alignment are part of the review. | Capsules, tablets, sachets, and drink or powder concepts where mainstream magnesium supplementation is the main formulation direction. | Tablets, capsules, and selected technical projects where a straightforward magnesium source and simpler cost structure are part of supplier selection. |
| Formulation focus | Usually reviewed for grade, assay basis, powder handling, moisture response, and suitability for solid or blended systems. | Usually reviewed for application flexibility, dosage-form fit, and supplement-oriented formulation direction. | Usually reviewed for magnesium-content direction, compression suitability, and practicality in simpler systems. |
| Buyer review focus | Buyers usually review intended use, grade direction, powder profile, document scope, and packaging plan before commercial evaluation. | Buyers usually review supplement positioning, delivery format, and overall formulation fit before supplier comparison. | Buyers usually review cost structure, dosage-form plan, and specification alignment before sourcing. |
Applications
Antacid and Tablet Systems
Commonly reviewed for antacid tablets and related solid-dose projects where buyers need magnesium carbonate powder with clear specification support and documentation.
Magnesium Supplement Formulations
Can be considered for magnesium-support tablets, capsules, and powder systems where grade direction, assay basis, and dosage-form fit are part of supplier review.
Food and Powdered Additive Systems
Also used in food-related powder systems where anti-caking, moisture-management, and handling profile are relevant to the formulation concept.
Selected Industrial Absorbent or Filler Projects
May be evaluated for agreed industrial uses where powder behavior, bulk handling, and specification consistency are part of the commercial review.
How to Choose the Right Grade / Form
For pharmaceutical and antacid projects
Confirm pharmacopoeial direction, assay basis, impurity limits, and required document scope before supplier comparison.
For supplement formulations
Check elemental magnesium direction, dosage-form fit, powder behavior, and packaging plan according to your product concept.
For food applications
Review additive positioning, handling profile, and destination-market compliance before commercial sourcing.
For industrial projects
Confirm appearance, particle behavior, absorbent or filler role, and specification alignment according to the intended formulation or processing route.
Technical & Formulation Notes
Technical Notes
Magnesium carbonate powder is usually evaluated by grade direction, assay basis, appearance, handling characteristics, and end-use suitability rather than by compound name alone.
For sourcing review, buyers typically confirm whether the product is intended for food, pharmaceutical, supplement, or selected industrial use, and then review specification alignment, impurity control, and document scope according to project needs.
Manufacturing & Process
The product is commonly produced through controlled precipitation and purification processes designed to support consistency in appearance, composition, and handling profile.
For commercial review, process discussion is usually linked to grade direction, batch consistency, drying profile, and final powder suitability rather than over-detailed manufacturing claims unless project-specific technical data are required.
Compatibility / Formulation Notes
Magnesium carbonate powder should be evaluated within the target tablet, capsule, powder blend, food additive, or industrial formulation system rather than by assay value alone.
For project review, buyers usually assess powder flow, blending behavior, moisture response, compatibility with companion ingredients, and overall handling fit during internal testing.
Final suitability should be confirmed according to the actual dosage form, manufacturing process, storage condition, and destination-market requirements.
Extended QC & Test Items
Typical review items may include:
- Appearance
- Identification
- Assay basis
- Chloride and sulfate control
- Soluble and insoluble matter
- Calcium, iron, and related impurity items
- Heavy metals and, where relevant, microbiological indicators
- Packaging integrity and batch traceability
Product specifications
| Test | Specification | Method |
|---|---|---|
| Appearance | White powder / per agreed spec | Visual |
| Identification | Conforms | Per agreed specification |
| Assay Basis | Per agreed spec | Pharmacopeial / per spec |
| CAS No. | 546-93-0 | Reference |
| Molecular Formula | MgCO3 | Reference |
| Molecular Weight | 84.31 | Reference |
| Documents | COA per batch; SDS/MSDS and TDS/spec sheet on request | Reference |
Storage, Shelf Life & Packaging
Storage
Store in a cool, dry place in a tightly sealed container away from moisture, heat, and direct sunlight.
After opening, keep the package well closed and protect the material from unsuitable storage conditions that may affect handling, assay, or batch stability.
Shelf Life
Shelf life should follow the agreed specification, batch label, and original packing condition.
For commercial review, please refer to the COA, product label, or specification sheet for the declared shelf-life period of the supplied lot.
Packaging & Logistics
Sample Packing
1 kg foil bag or small evaluation pack can be arranged for technical review and early-stage formulation screening.
Mid-Size Packing
5 kg or 10 kg packing can be discussed according to project and order plan.
Bulk Packing
Normally 25 kg/drum or bag according to grade, order volume, and shipment arrangement.
Customization
Custom packaging, labeling, and shipping-mark discussion can be arranged according to destination-market and project needs.
Logistics & Documents
Packing configuration and document pack should be aligned before shipment to support storage, handling, and destination-market review.

Supply, Documentation & Customization
Documents & Compliance
COA, SDS/MSDS, and TDS/spec sheet available based on product and market requirements.
Customization & Private Label
Custom packing, private label, and labeling support available depending on product type and order scope.
Commercial Support
Sample, lead time, and incoterm options can be discussed according to destination market and supply plan.
Why Source From Lifeworth
Grade-led sourcing communication
Support for buyers who need magnesium carbonate sourcing aligned with target standard, assay basis, and document scope rather than generic product claims.
Multi-application review support
The product can be discussed for food, supplement, pharmaceutical, and selected industrial projects according to application direction and technical needs.
Batch documentation support
COA per batch with SDS/MSDS and TDS available for technical, quality, and purchasing review.
Export-ready bulk handling
Packaging, labeling, and shipment coordination can be arranged for international sourcing projects.

FAQ
1) What is magnesium carbonate powder mainly used for?
It is commonly reviewed for antacid, magnesium-support, anti-caking, absorbent, and formulation-support applications depending on grade and intended use.
2) Can this product be discussed for food and pharmaceutical projects?
Yes. Food, pharmaceutical, supplement, and selected industrial directions can be discussed according to target specification and market requirements.
3) What should buyers confirm before ordering?
Please confirm intended use, target standard, assay basis, packaging preference, destination country, and required technical documents before quotation and scale-up.
4) What documents are available?
COA per batch is available. SDS/MSDS and TDS/specification sheet can be provided on request.
5) Is sample evaluation available?
Yes. Small sample packing can usually be arranged for technical review and sourcing evaluation.
6) Is magnesium carbonate the same as basic magnesium carbonate?
Not always. Buyers should confirm the exact product identity, specification basis, and intended use before supplier comparison and commercial evaluation.
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