Magnesium perchlorate hydrate
Magnesium perchlorate hydrate (CAS 64010-42-0), with the formula Mg(ClO4)2 · xH2O, is a highly hygroscopic, crystalline salt. It is a strong oxidizing agent and is primarily utilised as a desiccant for gases and liquids due to its powerful affinity for water. This compound finds application in various laboratory settings for drying purposes and in specific chemical syntheses where anhydrous conditions are critical.

Desiccant
Magnesium perchlorate hydrate is an effective desiccant, extensively used for drying gases and liquids in laboratory and industrial applications. Its high affinity for water makes it suitable for achieving very low moisture levels.
Laboratory Reagent
As a laboratory reagent, it is employed in analytical procedures and chemical syntheses requiring the removal of water. Its role is crucial in maintaining anhydrous environments for sensitive reactions or analyses.
Oxidizing Agent
Due to the perchlorate anion, this compound acts as a strong oxidizing agent. This property can be harnessed in specific chemical processes, though it necessitates careful handling and storage.
| Molecular weight | 223.21 (anhydrous basis) |
|---|---|
| Linear formula | Mg(ClO4)2 · xH2O |
| Assay | ≥99.0% (calc. based on dry substance, KT) |
| Grade | puriss. p.a. |
| Impurities tested | ≤34% water |


Hazard statements
- H272May intensify fire; oxidiser
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P220Keep away from clothing and combustible materials
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 1475 5.1 / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | O,Xi |
| Risk statements (R) | 8-36/37/38 |
| Safety statements (S) | 16-17-26-36 |
| Cation traces | Ca: ≤500 mg/kgCd: ≤5 mg/kgCo: ≤5 mg/kgCr: ≤5 mg/kgCu: ≤5 mg/kgFe: ≤5 mg/kgK: ≤100 mg/kgMn: ≤5 mg/kgNa: ≤50 mg/kgNi: ≤5 mg/kgPb: ≤5 mg/kgZn: ≤5 mg/kg |
| Anion traces | chloride (Cl-): ≤50 mg/kgnitrate (NO3-): ≤50 mg/kgsulfate (SO42-): ≤50 mg/kg |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Magnesium perchlorate hydrate used for?
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Magnesium perchlorate hydrate is primarily used as a powerful desiccant for drying gases and liquids in laboratory settings. It also serves as an oxidizing agent in certain chemical applications.
What is the CAS number and formula for Magnesium perchlorate hydrate?
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The CAS number is 64010-42-0 and the chemical formula is Mg(ClO4)2 · xH2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Magnesium perchlorate hydrate in Puriss p.a. grade, with an assay of ≥99.0% calculated on the dry substance. It contains ≤34% water.
What are the safety considerations when handling Magnesium perchlorate hydrate?
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Magnesium perchlorate hydrate is a strong oxidizer and an irritant. It poses a fire risk if involved in a fire and can cause severe eye irritation and respiratory tract irritation. Always use appropriate personal protective equipment, including safety goggles, gloves, and a respirator if dust is generated. Store away from combustible materials.
How is Magnesium perchlorate hydrate shipped and exported?
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Magnesium perchlorate hydrate is classified under UN 1475, Hazard Class 5.1, Packing Group II. Tech Serve Solutions adheres to all international regulations for the safe packing, shipping, and export of this chemical.
How can I request a sample or a quote for Magnesium perchlorate hydrate?
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To request a sample or a quote, please contact our sales department via the website or by calling our dedicated order line. Please specify the required quantity and delivery location.
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