01 / 06
Stage 01
Faster, not purer
This is not the next step past 99. It is the same 99%, taken out of the kiln differently.
99 % MgO
Magnesium oxide
MgVanta USP MgO 99 VHR: very high reactivity magnesium oxide, 99% MgO
Our highest-surface-area magnesia, for systems where reaction speed is the specification.
- MgO
- 99% MgO min.
- High-performance wastewater
- Specialty chemical synthesis
- Fast pH neutralization
- Reaction-rate-critical processes
- Fast-dissolution supplement formulation
Under the lens
MgVanta USP MgO 99 VHR, from ore to your order.
0.75%CaO
1.5%Loss on ignition
0.30 to 0.40Bulk density
02 / 06
Stage 02
Same certificate, different reaction
Every composition number matches the standard 99 grade, line for line. Nothing on an assay separates them.
0.75 % CaO, identical
03 / 06
Stage 03
The kiln held it differently
Shorter time, lower heat. The crystal never fully anneals, so surface area stays high and the grain stays small.
Lower thermal budget
04 / 06
Stage 04
Reacts in half the time
Against 20 to 30 seconds for the standard 99 grade. Same assay, provably faster.
12 to 20 seconds
05 / 06
Stage 05
Where a slower grade fails
Short-residence wastewater correction, specialty synthesis, flame-retardant precursor. Lower bulk density from the added porosity.
0.30 to 0.40 g/cm3
06 / 06
Stage 06
Trial MgVanta USP MgO 99 VHR
If a slower grade has passed through your system unreacted, request a sample and a quote for this one.
US stock
Product identity
Compound
Magnesium oxide
Formula
MgO
Grade
99% MgO min.
CAS number
1309-48-4
EC number
215-171-9
HTS
2519.90.2000
Other magnesium oxide. Classification is advisory, so confirm it with your broker.
Compliance
What this grade carries
The standards, verification and documentation that apply to this grade.
- USP-aligned specification, conformance testing on request
- FDA-registered production
- ISO 9001:2015
- Independent US laboratory verification of chemistry and reactivity per lot
- Halal and kosher available
- Documented chain of custody
Specification
Typical values
Typical values, not a certificate. Your COA reports the measured result for your lot.
| Parameter | Typical value | Method |
|---|---|---|
| MgO, MagVanta typical | 99.0% ± 0.5% | USP monograph, titrimetric |
| CaO | 0.75% ± 0.25% | ICP-OES |
| SiO2 | 200 ppm max. ± 100 | ICP-OES |
| Fe as Fe2O3 | 75 ppm ± 25 | ICP-OES |
| Al2O3 | 200 ppm ± 100 | ICP-OES |
| Loss on ignition | 1.5% ± 2.5%, adjustable to order | USP <733> |
| Citric acid reactivity | 12 to 20 s | Citric acid neutralisation time, house method |
| Surface area (BET) | Elevated relative to the standard grade, figure on request | Nitrogen adsorption, ISO 9277 |
| Particle size | 100% passing 45 microns (325 mesh) | Laser diffraction |
| Appearance | White free-flowing powder | Visual |
| Bulk density | 0.30 to 0.40 g/cm3, lower than the standard grade owing to porosity | USP <616> |
| Solubility in water | Practically insoluble | USP monograph |
| Arsenic (As) | 0.20 mg/kg max. | USP <232> / <233> |
| Lead (Pb) | 1.00 mg/kg max. | USP <232> / <233> |
| Cadmium (Cd) | 0.10 mg/kg max. | USP <232> / <233> |
| Mercury (Hg) | 0.05 mg/kg max. | USP <232> / <233> |
Request the technical data sheet for the controlling specification and tolerances.
Note
This grade is sensitive to moisture and carbon dioxide. Store sealed and indoors, and use within the shelf life stated on the technical data sheet to preserve activity.
Full calcine
Shorter, cooler calcine
Packaging and supply
How it ships
- 25 kg polyethylene-lined paper bags
- 500 kg and 750 kg bulk bags
- Moisture-barrier packaging as standard, since this grade is hygroscopic
Formats and minimum order quantities confirmed at quote.
Applications
Where this grade is used
-
Segment 03
Water treatment
Self-limiting pH correction that will not overshoot.
-
Segment 04
Flame retardants
Halogen-free flame retardant for high-temperature compounding.
-
Segment 01
Supplement and pharma
Pharmaceutical grades for supplement, antacid and personal care formulation.
Get a quote for MgVanta USP MgO 99 VHR.
Tell us the volume, the packaging you need and the delivery point. We will confirm current US stock, a delivered price and the documentation package for this grade.