Industrial chemicals · Taylor, TXCertificate of Analysis

Sample Certificate of Analysis

Magnesium Hydroxide ACS

Certificate #: TYP-MAGNESIUMHYD
Lot Number: TYPICAL SAMPLE
Test Date: 2026-06-02
Category: Bases & Salts (E)
CAS Number: 1309-42-8
Formula: H2MgO2
Computed Assay: 99.50%(100 − Σ impurities)

Sample COA. Lot-specific COAs ship with each order.

Specifications

Parameter	Specification	Typical Result	Test Method
Assay (Titration)	95 – 100.5 %	99.5 %	Titration
Acid-Insoluble Substances	≤ 0.05 %	0.02 %	Gravimetric
Appearance	—	—	Visual Inspection
Arsenic (As)	≤ 0.0003 ppm	0 ppm	ICP-MS
Calcium (Ca)	≤ 0.5 %	0.26 %	ICP-MS
Calcium	≤ 1.5 %	0.26 %	Per specification
Chloride	≤ 0.03 ppm	0 ppm	Ion chromatography
Heavy Metals (as Pb)	≤ 20 ppm	6 ppm	ICP-MS (as Pb)
Iron	≤ 0.12 ppm	0 ppm	ICP
Manganese (Mn)	≤ 0.005 ppm	0 ppm	ICP-MS
Sulfate	≤ 0.1 ppm	0 ppm	Ion chromatography

Generated 2026-06-02. Values are representative of typical production lots and reflect the published specification range. Lot-specific COAs are provided with every shipment.