Technical Data Sheet

Magnesium Hydroxide Technical

CAS Number
1309-42-8
Alliance Code
magnesium-hydroxide-technical
Generated
2026-06-02
Last reviewed 2026-05-20 by Hossein Taki, Vice President.

1. Identity & Composition

Product Name
Magnesium Hydroxide Technical
Alliance Code
magnesium-hydroxide-technical
Grade
Concentration
CAS Number
1309-42-8PubChem
Formula
H2MgO2PubChem
Molecular Weight
58.320PubChem
Product Type
pure_substance

Available GradesSame CAS, alternate grades and concentrations

GradeConcentrationTypical AssaySKUTDS
This grade currentcurrent
magnesium-hydroxide-acsView TDS →

Typical assay shown is the rolling-window mean from the sibling product's most recent lots. Grade selection drives downstream end-use — verify the sibling grade matches your specification before substitution.

Physical & Chemical Properties

Appearance
Dry Powder, Liquid; Pellets or Large Crystals; Liquid; Water or Solvent Wet Solid; Dry Powder; Other SolidProduct record
Form
SolidProduct record
Odor
OdorlessProduct record
pH
pH = 9.5-10.5 (aqueous slurry)Product record
Density
2.36 g/mLProduct record
Boiling Point
354Product record
Melting Point
350 °C (decomposes)Product record
Flash Point
N/AProduct record
Solubility (water)
Practically insoluble in water and in ethanolProduct record

Regulatory & Transport

DOT / 49 CFR

UN Number
Not regulatedAdjudicated
Hazard Class
Not regulatedAdjudicated
Packing Group
Not regulatedAdjudicated
Proper Shipping Name
Not regulatedAdjudicated

GHS / OSHA HazCom 2012

Signal Word
Not regulatedAdjudicated
H-Codes (Hazard Statements)
unknown
P-Codes (Precautionary Statements)
unknown

Occupational Exposure Limits

OSHA PEL (29 CFR 1910.1000)
unknown
ACGIH TLV
unknown
NIOSH REL
unknown
NIOSH IDLH
unknown

Transport descriptions reflect 49 CFR 172.101 lookup at time of publication. Sourced data: ECHA CLP Annex VI for harmonised classifications, NIOSH Pocket Guide for REL/IDLH, OSHA Z-Tables for PEL. Always verify against the latest regulatory text before shipment-critical decisions.

Supplier Qualification Packet

One zipped download containing the TDS, SDS, latest lot COA (when available), and a fresh Letter of Continuing Guaranty for Magnesium Hydroxide Technical. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.

Download audit packet

Application Guidance

Magnesium Hydroxide Technical application guidance is available on request. Contact Alliance Chemical Technical Services for grade-specific use recommendations.

    Storage & Handling

    Recommended Storage
    Cool, dry, well-ventilated area in original sealed containers. Refer to product SDS for material-specific guidance.
    Handling Precautions
    Use standard chemical PPE — splash goggles, gloves, lab coat. Refer to SDS for hazard-specific PPE requirements.
    Incompatibilities
    Consult the SDS for material-specific incompatibilities.
    Shelf Life
    24 months from date of manufacture in sealed, original packaging

    For full hazard, PPE, and emergency response guidance, refer to the Safety Data Sheet (SDS) for this product. The SDS controls in all cases where guidance differs.

    Revision History

    Last reviewed 2026-05-20 by Hossein Taki, Vice President (Vice President, Alliance Chemical · CAGE Code 1LT50 · DOT Hazmat Registrant #2188383).

    VersionDateChangeTrigger
    1.02026-05-20Initial URL-first TDS published from canonical chemistry registry.initial

    This Technical Data Sheet is provided for technical reference. The Safety Data Sheet (SDS) controls in all cases where guidance differs. Values reflect Alliance Chemical canonical data at time of generation; subsequent revisions are recorded in the Revision History above.