01 / 06
Stage 01
Off the ladder entirely
This is not a purer oxide. It is a different compound, magnesium hydroxide, reached by a different route.
Mg(OH)2 not MgO
Magnesium hydroxide
MgVanta USP Mg(OH)2 99: pharmaceutical grade magnesium hydroxide, 99% Mg(OH)2
Pharmaceutical and supplement grade magnesium hydroxide for ingredient use and halogen-free flame retardancy.
- Mg(OH)2
- 99% Mg(OH)2 min.
- Antacid active ingredient
- Personal care formulation
- Halogen-free flame retardant
- Pharmaceutical suspension
- Wastewater pH control
Under the lens
MgVanta USP Mg(OH)2 99, from ore to your order.
1.0%Calcium
100 ppmIron
30.0 to 33.0Loss on ignition
2.36 g/cm3Specific gravity
0.45 g/cm3Bulk density
02 / 06
Stage 02
Made by adding water
Water is added to the oxide and taken up into the structure. The platelet that forms carries the chemistry the oxide brought with it.
2 routes
03 / 06
Stage 03
MgVanta USP Mg(OH)2 99 arrives
Assay above 99% by titration, with calcium held well inside the in-house ceiling.
99.0 % Mg(OH)2 min.
04 / 06
Stage 04
One chemistry, two jobs
Formulators want purity and consistent particle size. Compounders want it to survive heat aluminium hydroxide cannot.
340 °C, around
05 / 06
Stage 05
It cools by releasing water
As it decomposes it pulls heat out of the fire and gives off water vapour, halogen-free, diluting the flame directly.
Endothermic decomposition
06 / 06
Stage 06
Request the MgVanta USP Mg(OH)2 99 quote
Tell us your channel: antacid, personal care or flame retardant. We confirm US stock, price and documentation.
US stock
Product identity
Compound
Magnesium hydroxide
Formula
Mg(OH)2
Grade
99% Mg(OH)2 min.
CAS number
1309-42-8
EC number
215-170-3
HTS
2816.10.0000
Hydroxide and peroxide of magnesium. 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
- MOCRA-registered cosmetic-grade production
- ISO 9001:2015
- HACCP
- Independent US laboratory verification 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 |
|---|---|---|
| Mg(OH)2 assay | 99.0% min. | Titrimetric |
| Calcium, monograph limit | 1.5% max. | USP monograph |
| Calcium (Ca), in-house | 1.0% max., 0.05% typical | ICP-OES |
| Iron (Fe) | 100 ppm max., 50 ppm typical | ICP-OES |
| Chloride (Cl) | 0.10% max., 0.05% typical | USP <221> |
| Loss on drying (105 C, 2 h) | 2.0% max. | USP <731> |
| Loss on ignition (800 C) | 30.0 to 33.0%, 31.0% typical | USP <733> |
| Specific gravity | 2.36 g/cm3 | USP <841> |
| Bulk density, loose | 0.45 g/cm3 | USP <616> |
| Bulk density, tapped | 0.70 g/cm3 | USP <616> |
| Appearance | White free-flowing powder | Visual |
| Solubility in water | Very slightly soluble | USP monograph |
| Solubility in dilute acids | Soluble with effervescence | USP monograph |
| Identification | Passes | USP <191> |
| Heavy metals | 20 ppm max. | USP <231> Method I |
| Arsenic (As) | 4 ppm max. | USP <231> Method I |
| Lead (Pb) | 1.5 ppm max. | USP <231> Method I |
Request the technical data sheet for the controlling specification and tolerances.
Note
Manufactured to a USP-aligned specification for magnesium hydroxide. Conformance testing against the monograph is available on request. The certificate of analysis states exactly which tests have been performed on your lot. Antacid drug use and dietary supplement use sit under different US frameworks, and the requirements follow your finished product, so tell us the channel and we will supply the matching documentation. Stearate and silane coated variants are available to order.
Packaging and supply
How it ships
- 25 kg polyethylene-lined paper bags
- 500 kg and 1,000 kg bulk bags with a food-contact-compliant liner
- Surface-treated variants available to order for polymer compounding
Formats and minimum order quantities confirmed at quote.
Documentation
What ships with it
- COA
- TDS
- SDS
- Supplement-channel documentation
Applications
Where this grade is used
-
Segment 01
Supplement and pharma
Pharmaceutical grades for supplement, antacid and personal care formulation.
-
Segment 04
Flame retardants
Halogen-free flame retardant for high-temperature compounding.
-
Segment 03
Water treatment
Self-limiting pH correction that will not overshoot.
Get a quote for MgVanta USP Mg(OH)2 99.
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.