Magnesium Hydroxide ACS

Category : Bases

$26.40
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Magnesium Hydroxide ACS Current
Magnesium Hydroxide Technical From $19.80
Other Grades & Concentrations

Available in other grades and concentrations:

Magnesium Hydroxide Technical
From $19.80
CAS: 1309-42-8 Mg(OH)2
$26.40
Other Grades & Concentrations

Available in other grades and concentrations:

Magnesium Hydroxide Technical
From $19.80
CAS: 1309-42-8 Mg(OH)2

Magnesium Hydroxide ACS

$26.40

Commercial Fulfillment Snapshot

Buy Magnesium Hydroxide ACS with faster decisions and fewer back-and-forth emails.

Ships from Taylor, Texas. In-stock orders placed before 1:00 PM CT (Mon-Thu) and before 12:00 PM CT (Fri) typically ship same business day. Order online 24/7.

Technical Documents

Lot-specific COA is issued per shipment batch.

Who Buys This
  • Water treatment facilities
  • Pharmaceutical manufacturers
  • Flame retardant producers
  • Chemical processing companies
  • Research laboratories
Purity / Grade Guide
  • ACS Reagent Grade certified
  • Meets American Chemical Society specs
  • Suitable for analytical & lab work
  • Certificate of Analysis with each lot
Pack Sizes
  • 2 lb: bench & testing
  • 5 lb: shop & formulating
  • 55 lb: bulk, best $/lb
SDS / COA / TDS
  • Non-regulated ground shipment
  • SDS with every order
  • COA showing purity specs
  • ACS compliance certificate
Small Packs: UPS Ground nationwide for pints, quarts, and gallons.
LTL / FTL: ABF, SEFL, Saia, XPO, and partner carriers for pails, drums, totes, and full truckloads.
Support: Email or call for freight options, hazardous-material routing, and lead-time confirmation.

Why Magnesium Hydroxide ACS

Magnesium Hydroxide ACS is an analytical-grade, fine white crystalline powder that strictly meets the stringent purity specifications established by the American Chemical Society. Technical buyers select this exact solid grade when trace element limits must be tightly controlled, such as during sensitive chemical synthesis, precise environmental testing, or specialized metal processing. By sourcing this compound in a dry powder form rather than a pre-mixed liquid solution, facility operators maintain complete operational control over dilution ratios. This flexibility enables water treatment professionals and chemical formulators to build custom alkaline slurries tailored to their unique system requirements. Furthermore, the inherently low water solubility of this opaque solid ensures a gradual, measured release of alkalinity. This controlled reaction prevents the rapid, dangerous pH spikes often associated with more aggressive caustic materials during complex neutralization sequences.

Best Applications for This Grade

  • Commonly applied in advanced environmental wastewater neutralization operations, where the dry powder is mechanically agitated on-site to create distinct slurry concentrations, providing reliable, sustained pH buffering across fluctuating acidic effluent flows.
  • Commonly applied in precise heavy metal precipitation applications within metal processing facilities, capitalizing on the rigid trace-metal limits of the ACS grade to ensure zero unmapped contaminants enter the recovery stream.
  • Commonly applied in laboratory-scale chemical synthesis and analytical testing environments that demand a guaranteed, reproducible magnesium source matching exact stoichiometric requirements without introducing reactive impurities.
  • Commonly applied in the manufacturing of specialty chemical cleaners and complex soap formulations where operators require a steady, mild alkaline chemical component that maintains physical stability in its dry state prior to formulation.

When to Choose a Different Grade

  • If the project involves large-scale industrial wastewater treatment, bulk gas scrubbing, or general manufacturing where demanding analytical purity parameters are unnecessary, choose Magnesium Hydroxide Technical to achieve targeted, cost-effective base additions.
  • If the facility lacks the mechanical blending equipment required to actively convert fine crystalline powders into suspended slurries, evaluate ready-to-use liquid caustic solutions to streamline automated dosing procedures and bypass dry material handling constraints.
  • If the underlying chemical formulation explicitly demands immediate and total solubility in aqueous systems or alcohol bases, operators must source a different alkaline compound, as this specific chemical features distinctly low water solubility and is completely insoluble in alcohol.
Property Value
Molecular Weight 58.44
Formula Mg(OH)2
Assay 99-100.5%
Grade ACS Grade
Form Solid
Solubility Slightly soluble in water
Appearance White powder
Melting Point 350
Boiling Point 350°C (662°F)
Specific Gravity 2.36
Industry Pharmaceutical, Water Treatment, Industrial, Chemical Manufacturing

Frequently Asked Questions About Magnesium Hydroxide ACS

What is Magnesium Hydroxide ACS and what is its chemical formula?
Magnesium Hydroxide ACS is a chemical compound with the molecular formula Mg(OH)2, registered under CAS Number 1309-42-8 by the Chemical Abstracts Service (PubChem), with a molecular weight of 58.32 g/mol. Alliance Chemical supplies Magnesium Hydroxide ACS in ACS Reagent grade for laboratory, industrial, and commercial applications.
What are the physical properties of Magnesium Hydroxide ACS?
According to the NIOSH Pocket Guide to Chemical Hazards, Magnesium Hydroxide ACS is supplied as a solid with a fine white crystalline powder, opaque appearance. It has a melting point of 350°C (662°F)°C, a boiling point of 350°C (662°F)°C, a flash point of N/A. The specific gravity is 2.36 relative to water. Solubility: Low water solubility, insoluble in alcohol.
What grade and purity of Magnesium Hydroxide ACS does Alliance Chemical offer?
Alliance Chemical offers Magnesium Hydroxide ACS in ACS Reagent grade. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.
What are common industrial applications of Magnesium Hydroxide ACS?
Magnesium Hydroxide ACS serves a wide range of sectors, including Industrial & Manufacturing, and Water & Environmental.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.
What PPE is required when handling Magnesium Hydroxide ACS?
OSHA-mandated PPE per 29 CFR 1910.132-138:Chemical-resistant gloves (20+ mil neoprene or PVC), full face shield over safety goggles (ANSI Z87.1), acid-resistant apron or chemical suit, closed-toe chemical-resistant footwear. Respiratory protection (organic vapor cartridge) required in areas exceeding PEL/TLV per 29 CFR 1910.134. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.
What are the storage requirements for Magnesium Hydroxide ACS?
Store perOSHA 29 CFR 1910.106: Approved flammable storage cabinet, maximum 60 gallons per cabinet, grounding/bonding required. Temperature range:15-25°C. Segregate from:acids, aluminum, zinc. Maximum storage:2-3 years unopened.
What is the emergency spill procedure for Magnesium Hydroxide ACS?
Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 100 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Neutralize with citric acid or acetic acid (5% solution). (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.
What is the DOT shipping classification for Magnesium Hydroxide ACS?
DOT Classification per 49 CFR 172.101:See SDS Section 14 for specific UN number, Hazard Class8 (Corrosive), Packing GroupII/III. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.
How must Magnesium Hydroxide ACS waste be disposed?
Disposal per RCRA (40 CFR 261-265):Characteristic waste D002 (Corrosive, pH ≤2 or ≥12.5). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.
Does Alliance Chemical provide an SDS and COA for Magnesium Hydroxide ACS?
Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Magnesium Hydroxide ACS. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.