Magnesium Hydroxide - Magnesium Hydrate and Magnesium Hydroxide Chemical From Niknam Chemicals

Magnesium Hydroxide is a white powder with specific gravity of 2.36. , very slightly soluble in water; decomposing at 350 C. Magnesium Hydroxide is an inert filler, flame retardant and smoke suppressant for plastics,synthetic rubber, reinforced polyesters, phenolics and urethane foam.Magnesium hydroxide releases its 31% water when heated to above 325 C, Which cools the product below flash point to reduce fire occurance. Medicinally it, in the form of a mixture (milk of magnesia), is also used as an antacid and as a osmotic laxative.

Advantage:

Initial dehydration temperature is 340°C, suitable for high temperature process of the flame – retardant rubber and plastic
The effectiveness of flame – retardant and smoke suppressant is better than Aluminum Hydroxide
Magnesium Hydroxide also has strong reinforcement due to high fineness & the surface is coated specially

Usage:
Widely used for flame - retardant rubber and plastic products that must be lower halogen, non-halogen, low-smoking. Also cab be used in thermoplastic and elastomers such as EVA, EPDM, PVC, PE, PP resins etc.

General Information of flame retardant agent
Flame Retardant are substances that can be chemically inserted into the polymer molecule or be physically blended in polymers after polymerization to suppress, reduce, delay or modify the propagation of a flame through a plastic materials. There are several classes of flame retardants; Halogenated Hydrocarbons (Chlorine and Bromine containing Compounds and reactive flame retardants), Inorganic flame retardants ( Boron Compounds, Antimony oxides, Aluminium Hydroxide, molybdenum Compounds, zinc and magnesium oxides ), Phosphorous containing Compounds (Organic Phosphate Esters, Phosphates, halogenated phosphorus Compounds and inorganic phosphorus containing salts).

Class of Flame Retardants

Inorganic
- Metal hydroxides
  - Aluminium hydroxide
  - Magnesium hydroxide
  - Orthers
- Antimony Compounds
  - Antimony trioxide
  - antimony pentoxide
  - Sodium antimonate
  - Others
- Boron Compounds
  - Boric acid
  - Borax
  - Zinc borate
  - Others
- Other metal Compounds
  - Molybdenum Compounds
    - Molybdenum Trioxide
    - Zinc Molybdate
    - Ammonium Octa Molybdate
  - Titanium Compounds
  - Zirconium Compounds
  - Zinc Compounds
    - Zinc stannate
    - Zinc Hydroxystannate
    - Others
  - Others
- Phosphorus Compounds
  - Red phosphorus
  - Ammonium polyphosphate
  - Others
- Other inorganic flame retardants
  - Ammonium Sulfamate
  - Ammonium Bromide
  - Others
Organophosphoros
- Non-halogenated Compounds
  - Phosphate Esters
    - Ttrialkyl Phosphates
    - Triaryl Phosphates
    - Aryl-alkyl Phosphates
    - Others
  - polyols
  - phosphonium derivatives
  - phosphonates
  - Others
- Halogenated Phosphates
  - Tris(1-chloro- 2-propyl) phosphate
  - Tris(2-chloroethyl) phosphate
  - Tris(2,3-dibromopropyl)phosphate
  - Others
Nitrogen-based
- Polyurethanes
- Polyamides
- Melamine and its salts
- Guanidine Compounds
- Others