Technical Data Sheet

Magnesium Hydroxide Technical

Alliance Code: magnesium-hydroxide-technical
確認日: 2026-06-17
Revision: 1.4

CAS番号: 1309-42-8
構造: 構造・PubChem

Last reviewed 2026-06-17 by Andre Taki, Chief Commercial Officer.

Identity & Composition

製品名: Magnesium Hydroxide Technical
Alliance Code: magnesium-hydroxide-technical
グレード: —
濃度: —
CAS番号: 1309-42-8PubChem
化学式: —PubChem
分子量: 58.320PubChem
製品種別: Pure substance

Specifications

Test	Specification	Typical	Method	Source
Assay (Mg(OH)2)	99.0% min	99.36%	by difference	Interpreted
Aluminum Oxide (Al2O3)	0.15 % max.	0.023 %	—	Interpreted
Calcium (as CaO)	0.20% max	0.11%	—	Interpreted
Calcium Oxide (CaO)	0.70 % max.	0.11 %	—	Interpreted
Fineness, % passing 325 mesh	99.5 % min.	99.99 %	—	Interpreted
Iron (as Fe)	0.01% max	0.0023%	—	Interpreted
Iron Oxide (Fe2O3)	0.20 % max.	0.0035 %	—	Interpreted
Magnesium Oxide (MgO), equivalent	67.7 % min.	68.6 %	—	Interpreted
Median particle size	0.8 - 2.0 microns	1.5	—	Interpreted
Particle Size Distribution MsD50	1.70 mic max	1.41	—	Interpreted
Particle Size Distribution MsD90	4.70 mic max	3.83	—	Interpreted
Particle size: Residue on 325 mesh	1.0% max	0.01%	wet sieve	Interpreted
Silicon Oxide (SiO2)	0.35 % max.	0.035 %	—	Interpreted
Sulfates (as SO4)	0.15% max	0.058%	—	Interpreted
Surface area (BET)	7 - 18 m2/g	12.2	—	Interpreted
Free moisture	2.0 % max.	0.28 %	—	Interpreted
Chloride (Cl)	0.35 % max.	0.070 %	—	Interpreted
Loss on ignition	30.0 - 33.0 %	31.5 %	—	Interpreted
Whiteness (ISO brightness, R457)	95.0 % min.	98.0 %	Reflectance photometer, ISO 2470	Interpreted
Sodium (as Na2O)	0.30 % max.	0.065 %	ICP-OES (or flame photometry)	Interpreted

Values are reproduced from the current product reference. Source labels do not by themselves establish a supplier guarantee or a test result for your lot. Confirm applicable acceptance limits and request lot-specific documentation.

Available GradesSame CAS, alternate grades and concentrations

グレード	濃度	Typical Assay	SKU	TDS
This grade —	—	—	current	current
ACS	—	—	magnesium-hydroxide-acs	View 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.

物理的及び化学的性質

Property	値	Source
外観	White, odorless powder	Adjudicated
形状	Solid	Published reference
臭い	Odorless	Published reference
pH	9.5 - 10.8	Interpreted
密度	0.30 - 0.60 g/cm3	Interpreted
沸点	354	Published reference
融点	350 °C (decomposes)	Adjudicated
引火点	N/A	Published reference
Solubility (water)	Practically insoluble in water and in ethanol	Published reference

Regulatory & Transport

DOT / 49 CFR

国連番号: 非該当Adjudicated
危険有害性クラス: 非該当Adjudicated
容器等級: 非該当Adjudicated
正式輸送品名: 非該当Adjudicated

GHS / OSHA HCS 2024

注意喚起語: 非該当Adjudicated
H-Codes (Hazard Statements): 該当しないAdjudicated
P-Codes (Precautionary Statements): 該当しないAdjudicated

許容濃度

OSHA PEL (29 CFR 1910.1000): —no canonical
ACGIH TLV: —no canonical
NIOSH REL: —no canonical
NIOSH IDLH: —no canonical

輸送情報は発行時点の49 CFR 172.101の照会結果を反映しています。データ出典：REL/IDLHはNIOSH Pocket Guide、PELはOSHA Zテーブル。出荷に関わる重要な判断の前に、必ず最新の規制本文で確認してください。

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

Applications

Technical and industrial uses, including neutralization processes, waste water treatment, and paint applicationiclgroupv2.s3.amazonaws.com
Acid neutralizationmagnesiaspecialties.com
Flame retardant and smoke suppressant in plasticsmagnesiaspecialties.com
Acid scavenger in elastomersmagnesiaspecialties.com
Production of magnesium salts, ceramics, and specialty applicationsmagnesiaspecialties.com

Applications are drawn from published manufacturer and supplier documentation; each is sourced. Suitability for a specific use is the buyer's to confirm.

Storage & Handling

Recommended Storage: 混触危険物質から離し、乾燥した涼しい換気の良い場所で容器を密閉して保管すること。不燃性固体。粉じんの発生及び蓄積を最小限に抑えること。Adjudicated
Handling Precautions: Use standard chemical PPE — splash goggles, gloves, lab coat. Refer to SDS for hazard-specific PPE requirements.Class-level guidance — not product-specific; the SDS controls.
Incompatibilities: 強酸、強酸化剤、リン（自然発火）、無水マレイン酸Adjudicated
Shelf Life: 36 monthsiclgroupv2.s3.amazonaws.comStored in original packaging in a dry, ventilated space

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.

Packaging & Logistics

Shipping Description (US DOT)

Not regulated for transport.

Confirm against shipping documents and carrier requirements before tender.

NMFC Class

Revision History

Last reviewed 2026-06-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).

Version	Date	Change	Trigger
1.4	2026-10-13	Canonical data updated: 4 fields changed via the provenance/adjudication pipeline. storage_precautions· canonical change (coa.data_provenance / adjudication) incompatible_materials· canonical change (coa.data_provenance / adjudication) conditions_to_avoid· canonical change (coa.data_provenance / adjudication) hazardous_decomposition_products· canonical change (coa.data_provenance / adjudication)	canonical_change
1.3	2026-10-02	Canonical data updated: 2 fields changed via the provenance/adjudication pipeline. hazard_h_codes· canonical change (coa.data_provenance / adjudication) hazard_p_codes· canonical change (coa.data_provenance / adjudication)	canonical_change
1.2	2026-09-30	Canonical data updated: 2 fields changed via the provenance/adjudication pipeline. meltingPoint· canonical change (coa.data_provenance / adjudication) appearance· canonical change (coa.data_provenance / adjudication)	canonical_change
1.1	2026-06-17	Canonical data re-verified: 3 fields updated against independent vendor SDSs, CLP Annex VI, 49 CFR, and OSHA HazCom 2024 (GHS classification, hazard/precautionary codes, signal word, physical properties as applicable). countryOfOrigin· canonical adjudication / reground (coa.data_provenance) dotSubsidiaryHazardClass· canonical adjudication / reground (coa.data_provenance) hsCode· canonical adjudication / reground (coa.data_provenance)	canonical_change
1.0	2026-05-20	Initial 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.