min. 99.9% magnesium hydroxide carbonate powder, extra light, magnesium carbonate, E504(ii), CAS No.: 12125-28-9
€3.03
Available, delivery time: 2-5 days
Product information "min. 99.9% magnesium hydroxide carbonate powder, extra light, magnesium carbonate, E504(ii), CAS No.: 12125-28-9"
Magnesium Hydroxide Carbonate, also known as Magnesia Alba, is a versatile mineral raw material used in numerous industries. For private users, the substance is primarily known as "chalk" – particularly in climbing sports, where it is used to dry hands and improve grip. However, magnesia alba is also valued in gymnastics, weightlifting, bouldering, and track and field athletics.
Our product is a particularly pure grade (E504 II) with an exceptionally low bulk density ("extra light") of only 85 g/dm³. This high purity makes the product suitable not only for technical applications but also for use as a food additive and in dietary supplements.
Applications of Magnesium Hydroxide Carbonate at a Glance
Thanks to its chemical and physical properties, magnesia alba is used in many areas:
- Filler in the ceramics and plastics industry
- Refractory materials, for example in kilns or casting molds
- Insulation aid in technical applications
- Mold release agent in industrial manufacturing
- Food additive (E504) – e.g., as a release agent and acidity regulator
- Dietary supplement as a magnesium source
- Stomach acid regulation (antacid) in the pharmaceutical sector
- Additive in the manufacture of rubber-based materials
- Sport & Leisure: as chalk for climbing, bouldering, gymnastics, and weightlifting
Chemical-Physical Data
| Property | Value |
|---|---|
| CAS No. | 12125-28-9 |
| Molecular Formula | 4 MgCO₃ · Mg(OH)₂ · 5 H₂O |
| Purity | min. 99.9% |
| MgO Content | 40 – 45.0% |
| Iron (Fe) | max. 0.04% |
| Calcium (Ca) | max. 0.6% |
| Lead (Pb) | max. 2 ppm |
| Chloride | max. 0.05% |
| Sulfate | max. 0.3% |
| Loss on Ignition | 54 – 58% |
| Moisture (H₂O) | max. 3.0% |
| Acid-Insoluble Matter | max. 0.05% |
| Bulk Density | 85 g/dm³ (extra light) |
Frequently Asked Questions (FAQ) on Magnesium Hydroxide Carbonate
Is Magnesia Alba suitable as climbing chalk?
Yes, absolutely. The extra light grade with low bulk density is excellent as chalk for climbing, bouldering, gymnastics, and weightlifting. It effectively dries hands and provides optimal grip.
Is the product food-grade?
Yes, it is the pure grade E504 II, which is approved as a food additive. The purity is at least 99.9%, and the lead content is below 2 ppm.
How do I store the product correctly?
Store in a dry, cool place in a well-sealed container. With a maximum moisture content of 3.0%, the product has a long shelf life with proper storage.
What package sizes and containers do you offer?
We supply small quantities for resellers as well as industrial containers (bags, big bags) – please contact us for a customized quote.
Do you provide a Certificate of Analysis (CoA) per batch?
Yes, upon request, we provide batch-related certificates of analysis that confirm the specifications (purity, MgO content, heavy metal values, etc.).
Is the product suitable for pharmaceutical or food-technical processes?
With quality grade E504 II and high purity, the product is suitable for food applications. For pharmaceutical applications, please check the relevant pharmacopoeia requirements – we are happy to advise you.
What is the minimum order quantity, and what delivery times can be expected?
The minimum order quantity depends on the selected container. We typically deliver stock items within a few working days. Contact us for details.
| Also known as: | Basisches Magnesiumcarbonat, Magnesiumhydroxidcarbonat, leicht, Magnesiumcarbonat, Magnesia Alba, Hydromagnesit, Magnesitbasisches Carbonat, |
|---|---|
| CAS-Nr.: | 12125-28-9 |
| CaO: | max. 0,50 % |
| Color: | Weiß |
| Eisen (Fe): | max. 0,04 % |
| Feuchtigkeit: | max. 3,0 % |
| Glühverlust: | 54 - 58 % |
| MgO: | 40 - 45,0 % |
| Produktcharakter: | feines Pulver |
| Schüttdichte: | ca. 85g/dm³ |
| Stoffgruppe: | Carbonate |
| chloride: | max. 0,05 % |
| kind of product: | chemical |
| material: | Magnesiumcarbonat |
| purity: | min. 99,9 % |
| zur GPSR-Informationspflicht: | Hersteller + Verantwortliche Person: Werth-Metall, Ringstr. 41b, 99428 Grammetal, info@werth-metall.de |
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Magnesium hydroxide carbonate (Magnesia Alba) is used in various industries. In the private sector, however, it is often known as “chalk” and especially in climbing. Other areas of application include: Filler ceramics and plastics Refractory materials (e.g. in kilns or molds) Insulation aid Release agent Additive in the production of rubber-based materials Chemical / physical examination CAS number: 12125-28-9 Formula: 4 MgCO3 • Mg(OH)2 • 5 H2O Purity: min. 99.5% MgO: Min. 40.0% Fe: Max. 0.02% CaO: Max. 0.50% Mn: Max. 0.10% Chloride: Max. 0.15% Sulphate: Max. 2.00% Ignition loss: 54 to 58% Humidity (H2O): max. 3.0% Acid-insoluble components: Max. 0.15% Sieve residue on 75µm sieve: Max. 1.0% Bulk density: 0.15 g/cm³
Content: 0.25 Kilogramm (€9.52 / 1 Kilogramm)
This variety Magnesium oxide is of extremely high quality. You get the light version, which has an extraordinarily low bulk density. The material is very pure and also permitted for use in food (E520). Chemical/Physical Examination*: MgO: 98.0-100.5 Appearance of the acetone solution: min. B2 Soluble components: < 2.00% Free alkali: < 2.00 ml Acid-insoluble components: < 0.10% Chloride: < 0.10% Sulphate: < 1.00% Arsenic: < 3 ppm Calcium oxide: < 1.50% Calcium (calculated): < 1.10% Heavy metals: < 20 ppm Iron oxide (Fe2O3): < 0.071% Iron (calculated): < 0.05% Lead: < 2 ppm Mercury: < 0.1 ppm Cadmium: < 1 ppm Ignition loss: < 5.0% Bulk density: < 200 g/dm³ Particle size: < 45μm (325mesh) >98.0% *Please request guideline values and batch-related analyzes when ordering.
Content: 0.5 Kilogramm (€30.94 / 1 Kilogramm)
Chemical/Physical Examination*: Chloride: max. 1.0% Sulphate: max. 0.6% Calcium oxide: max. 0.95 % Iron oxide (Fe2O3): 0.08 % SiO2: max. 0.20 % Al2O3: max. 0.15% Ignition loss: max. 10.0% Specific Surface: > 140 m²/g Activity index (acetic acid): max. 9.0 sec Bulk density: 550 g/dm³ *Please request guideline values and batch-related analyzes when ordering.
Content: 5 Kilogramm (€15.47 / 1 Kilogramm)
This potassium chloride comes directly from a German factory and is free of anti-caking agents. You should take this into account. The product may clump when stored for long periods in less than ideal conditions. Storage recommendation: Under dry conditions and at room temperature Application examples: - Fertilizer additive chemical Raw material Pottery Dental hygiene products MetallurgyTypical chemical/physical properties Manufacturer K+S Formula KCl UN number not applicable Purity min. 99.2% CAS No. 7447-40-7 Na 0.3% Br 0.2% Mg ~60ppm Proportion of heavy metal < 5ppm Sieve passage d90 850µm
Manufactured and finely ground in Germany, our sulfur features only very low sulfate and ash content. The sulfur is neither mixed with mineral oil nor silica, making it ideal for analytical applications in the laboratory.Note: Due to the absence of additives, the flowability is accordingly limited. Please consider this when purchasing. Typical chemical/physical specifications: Formula: S UN Number: 1350 Purity: min. 99.95% CAS No.: 7704-34-9 Carbon disulfide insoluble: 0.03% Iron: 0.001% H2SO4: max. 0.01% Ash (C): max. 0.01% Sieve passing: d90 45 µm Signal word: WARNING! Hazard statements: H315: Causes skin irritation Precautionary statements: P302+P352: IF ON SKIN: Wash with plenty of water and soap