Industrial chemicals · Taylor, TXTechnical Data Sheet
Magnesium Hydroxide ACS
ACS
- CAS番号
- 1309-42-8
- 構造
構造・PubChem - グレード
- ACS
Identity & Composition
- 製品名
- Magnesium Hydroxide ACS
- Alliance Code
- magnesium-hydroxide-acs
- グレード
- ACS
- 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] | 95.00 - 100.5 % | 97.77 % | — | Interpreted |
| Arsenic (As) | 3 ppm max | 0.08 ppm | — | Interpreted |
| Calcium (Ca) | 1.50 % max | 0.077 % | — | Interpreted |
| Carbonate (CO3) | To pass test | Passes test | — | Interpreted |
| Heavy metals (as Pb) | 0.01 % max | 0.0012 % | — | Interpreted |
| Loss on drying @ 105 C | 2.00 % max | 0.49 % | — | Interpreted |
| Loss on ignition | 30 - 33.00 % | 31.45 % | — | Interpreted |
| Identification (magnesium) | To pass test | Passes test | ACS identification test - flame reaction and precipitation with ammonium phosphate | Interpreted |
| Insoluble in dilute hydrochloric acid | 0.02 % max | 0.0082 % | Gravimetric - dissolve in dilute HCl, filter, ignite residue | Interpreted |
| Chloride (Cl) | 0.03 % max | 0.0059 % | Turbidimetric comparison with AgNO3 against chloride standard | Interpreted |
| Sulfate (SO4) | 0.10 % max | 0.011 % | Turbidimetric comparison with BaCl2 against sulfate standard | Interpreted |
| Iron (Fe) | 0.02 % max | 0.0023 % | Colorimetric, 1,10-phenanthroline (or ICP-OES) | Interpreted |
| Ammonium hydroxide precipitate (as R2O3) | 0.02 % max | 0.0055 % | Gravimetric - NH4OH precipitation, ignition to mixed oxides | 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 ACS | — | — | current | current |
| Technical | — | — | magnesium-hydroxide-technical | View TDS → |
各グレードの代表的な含量は、直近ロットの平均値です。代替品として使用する前に、そのグレードがお客様の仕様を満たしていることをご確認ください。
物理的及び化学的性質
| Property | 値 | Source |
|---|---|---|
| 外観 | Fine white crystalline powder, opaque | Adjudicated |
| 形状 | Solid | Published reference |
| 臭い | Odorless | Published reference |
| pH | pH = 9.5-10.5 (aqueous slurry) | Published reference |
| 密度 | 2.36 g/mL | Published reference |
| 沸点 | 350 | 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 ACS. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
- 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
- Consult Technical Services for product-specific shelf life
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.
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.
| canonical_change |
| 1.3 | 2026-10-02 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-09-30 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| 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).
| 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.