Magnesium Chloride CAS 7786-30-3
Magnesium Chloride (CAS 7786-30-3) is an inorganic chloride, a white anhydrous hygroscopic powder. It dissolves in water and pulls moisture from air, so the solid stays damp and binds dust. It is spread for deicing and dust control, mixed with magnesium oxide into oxychloride cement and used in metallurgy and brine baths, while food grade material coagulates tofu. UATChem supplies industrial, deicing and food grades in 25 kg woven bags, fiber drums and 1000 kg ton bags, with COA, TDS and SDS on request.
- CAS: 7786-30-3
- EC Number: 232-094-6
- Type: Inorganic magnesium chloride
- Appearance: White anhydrous powder
- Main Use: Deicing, dust control, cement, food
- Available Grades: Industrial / deicing / food
- Packaging: 25 kg woven bag
- Bulk Pack: 1000 kg FIBC ton bag
- Documents: COA, TDS and SDS on request
- Storage: Sealed, dry, away from moisture
- Samples: Available on request
What Magnesium Chloride Is
Magnesium Chloride is the inorganic salt of magnesium and chlorine, with the simple formula MgCl2. The anhydrous powder is white, odorless and strongly hygroscopic, and it dissolves freely in water and alcohol. Heated hydrated material tends to hydrolyze, so anhydrous grades are dried and sealed. UATChem supplies anhydrous material, with assay, sulfates, calcium and alkali metals on the COA and TDS.
Deicing, Dust Control, Building and Industrial Uses
- Deicing. It is spread on roads and pavements to melt ice and snow, working at lower temperatures and being gentler on concrete than plain salt.
- Dust control. On unpaved roads and yards it draws moisture from the air and forms a damp film that binds surface particles and cuts dust.
- Building. Mixed with magnesium oxide it makes magnesium oxychloride cement for fire boards, grinding wheels and artificial stone.
- Metallurgical, food and other. It supports magnesium metal production, welding flux and refrigerating brine, and food grade material acts as tofu coagulant E511. Buyers comparing road salts also review calcium chloride dihydrate.
Typical Specifications
Assay and impurity levels vary by grade and are reported on the COA and TDS, while handling is covered by the SDS; the table below identifies the material.
| Parameter | Typical Value |
|---|---|
| CAS / EC | 7786-30-3 / 232-094-6 |
| Synonyms | Magnesium dichloride; Magnogene; Anhydrous magnesium chloride |
| Linear Formula | MgCl₂ |
| Molecular Formula | MgCl₂ |
| Molecular Weight | 95.21 |
| Melting Point | 714 °C |
| Density | 2.32 g/cm³ |
| Food Additive | E511 |
| HS Code | 2827.31 |
| Solubility | Freely soluble in water, hygroscopic and deliquescent |
| Grades | Industrial / deicing / food |
Packaging, Documents and Ordering
- Orders ship in 25 kg woven bags or fiber drums, and bulk volumes in 1000 kg FIBC ton bags, matching the photos. Because the solid is strongly hygroscopic, keep it sealed and dry, away from moisture.
- Every lot comes with a COA, TDS and SDS covering assay, sulfates, calcium and alkali metals, with food grade E511 documents for food orders.
- Samples are available for evaluation. To quote, UATChem needs the grade, quantity, packing and destination port.
FAQ
Q: What is anhydrous magnesium chloride used for?
A: It handles deicing and dust control, magnesium oxychloride cement, metallurgy, brine baths and food grade tofu coagulant E511.
Q: How is magnesium chloride packed?
A: UATChem supplies anhydrous powder in 25 kg woven bags, fiber drums and 1000 kg FIBC ton bags, with other packing on request.
Q: Why does magnesium chloride control road dust?
A: It pulls moisture from air and forms a damp film that binds surface particles, and the same behavior supports deicing.
Q: Is food grade magnesium chloride available?
A: Every lot ships with a COA, TDS and SDS covering assay, sulfates and calcium, with food grade E511 documentation on request.
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