Magnesium hydroxide CAS#1309-42-8

Magnesium hydroxide CAS#1309-42-8

Basic Information

Long-Lasting Antacid & Laxative Action:Reacts slowly with stomach acid and retains water in the intestine, providing sustained relief from acidity and constipation.


Effective Flame Retardant & Smoke Suppressant:Decomposes endothermically at 332 °C, releasing water and magnesia to reduce heat and suppress smoke in fire-resistant applications.


Versatile Industrial Applications:Widely used in wastewater treatment, fuel additives, and as a raw material for producing various magnesium salts.


Stable Aqueous Suspension:Forms a uniform suspension in water with controlled solubility, ensuring reliable performance in pharmaceutical and industrial formulations.



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product description

Product Description of ‌Magnesium hydroxide CAS#1309-42-8

As the main component of Milk of Magnesia, magnesium hydroxide acts as a long-acting antacid and laxative. It also functions as an effective flame retardant and smoke suppressant, decomposing endothermically at 332 °C. Additionally, it is applied in wastewater treatment, fuel additives, and magnesium salt manufacturing.


Product Application of Magnesium hydroxide CAS#1309-42-8

Magnesium hydroxide is a high-performance flame retardant for plastics, rubber and coatings. It is widely used in flue gas desulfurization and acidic wastewater treatment as a replacement for caustic soda and lime. It also serves pharmaceuticals, food processing, electronics and chemical raw material production. Owing to its higher decomposition temperature, it is ideal for high-temperature processing of common polymers and flame-retardant paints.

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Product Information

Parameters


Melting point350 °C (lit.)
density2,36 g/cm3
storage temp.Room Temperature
solubility5 M HCl: 0.1 M, clear, yellow
formpowder
colorWhite
Specific Gravity2.36
OdorOdorless
PH10.4(1 mM solution);10.4(10 mM solution);10.4(100 mM solution)
PH Range9.5 - 10.5
Water Solubility0.9 mg/100 mL (18 ºC)
λmaxλ: 260 nm Amax: 0.030
λ: 280 nm Amax: 0.025
SensitiveAir Sensitive
Merck145,670
Solubility Product Constant (Ksp)pKsp: 11.25
Stability:Stable.
Cosmetics Ingredients FunctionsABSORBENT
BUFFERING
InChIKeyVTHJTEIRLNZDEV-UHFFFAOYSA-L
LogP-1.380 (est)
CAS DataBase Reference1309-42-8(CAS DataBase Reference)
NIST Chemistry ReferenceMagnesium hydroxide(1309-42-8)
EPA Substance Registry SystemMagnesium hydroxide (Mg(OH)2) (1309-42-8)


Safety Information


Hazard CodesXi
Risk Statements36/37/38
Safety Statements26-36-37/39-24/25
WGK Germany-
RTECSOM3570000
TSCAYes
HS Code28161000
Hazardous Substances Data1309-42-8(Hazardous Substances Data)
ToxicityLD50 oral in rat: 8500mg/kg


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FAQ

1. What kind of company is Bohai New Materials?
Bohai New Materials (Tianjin) Co., Ltd. is a foreign trade company specializing in the international trade of chemical products, located in the Binhai New Area of ​​Tianjin. Leveraging the strategic location of Tianjin Port, the company provides one-stop procurement and export services to global clients for a wide range of products, including plastic resins, basic chemical raw materials, fine chemicals, chemical fiber raw materials, and inorganic chemicals.


2. Which markets does the company serve?
Our products are primarily exported to Southeast Asia (Vietnam, Thailand, Indonesia, Malaysia), the Middle East (UAE, Saudi Arabia), Africa (Nigeria, Kenya), as well as Europe and the Americas.


3. Does the company have the qualifications to export hazardous chemicals?
Yes. We hold a valid license for the operation of hazardous chemicals and are well-versed in the export declaration, packaging, documentation, and transportation requirements for various types of hazardous goods. We are capable of handling the export of Class 3, Class 5, Class 8, and Class 9 hazardous chemicals.


4. What are the company's main products?
Our core product portfolio includes:
Plastic resins: PP, PE, PVC, ABS, PC, POM, etc.
Basic chemical raw materials: Soda ash, caustic soda, titanium dioxide, methanol, styrene, ethylene glycol, PTA, etc.
Fine chemicals: Pharmaceutical intermediates, pesticide intermediates, chemical additives, solvents, surfactants.
Chemical fiber raw materials: Polyester filament, polyester staple fiber, polyester chips (PET).
Inorganic chemicals: Calcium carbonate, talc powder, sodium sulfate, calcium chloride, magnesium chloride, etc.
Others: Paraffin wax, white oil, petroleum jelly (Vaseline), rubber, water treatment chemicals, etc.
If you have specific product requirements, please feel free to contact us; we will quickly source high-quality products to meet your needs.


5. How can I obtain a product quote? What information is required?
You can contact us via our official website, by phone, or by email. To ensure a quick and accurate quote, please provide the following details: product name and specifications, target purchase quantity, destination port, and desired delivery time. Please also inform us of any special packaging or testing requirements.

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