What are the characteristics of antimony trioxide?

Release time:

2024-03-12 08:42

Antimony trioxide is the earliest flame retardant, suitable for epoxy resin, polyurethane, chloroprene rubber, polystyrene, polyvinyl chloride, polyester, etc., when used alone, the dosage is large, the flame retardant effect is poor (unless the flame retardant contains halogen), when combined with halogen compound (R.HX), it has good synergistic effect, and the flame retardant effect is obviously improved.

Antimony trioxide is an additive flame retardant, often used with other flame retardants and smoke suppressants, which can produce synergistic effects between the components. Antimony trioxide in the early stage of combustion, the first is melting, forming a protective film on the surface of the material to isolate the air, through the internal endothermic reaction, reduce the combustion temperature. Antimony trioxide is gasified at high temperature, which dilutes the oxygen concentration in the air, thus playing a flame retardant role.

Antimony trioxide is used in catalyst, mordant, fabric, paper, plastic flame retardant, glass decolorant. For the preparation of potassium antimony tartrate, glaze, fire retardant. Manufacture of lead softeners.

Antimony trioxide is an inorganic compound with the chemical formula Sb2O3. Natural products called antimony, commonly known as antimony white, white crystalline powder. Melting point 655 ℃. Boiling point 1550 ℃. Soluble in sodium hydroxide solution, hot tartaric acid solution, bitartrate solution and sodium sulfide solution, slightly soluble in water 370±37 µg/L, dilute nitric acid and dilute sulfuric acid. There is a carcinogenic possibility. There are two kinds of preparation methods, dry and wet, which are mainly used for white pigments, paints and plastics, and can play the role of pigments and flame retardants.

Antimony trioxide

Analysis of the main role of antimony trioxide!

The role and use of antimony trioxide

Analysis of the main role of antimony trioxide!

The role and use of antimony trioxide

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Antimony trioxide (also referred to as antimony oxide, commonly known as antimony white) molecular formula: Sb2O3 molecular weight: 291.5 Antimony trioxide is one of the inorganic flame retardants that have been used for a long time. It is mainly used as a flame retardant synergist to cooperate with halogen-containing compounds. It plays a flame retardant role in their thermal decomposition process and can replace some halogen compounds. It can be applied to plastics, rubber, chemical fiber, enamel, pigment, paint, glass, glass, electronics and other industries.

Antimony trioxide

3.5 zinc borate water molecular formula: 2ZnO • 3B2O3 • 3.5H2O molecular weight: 434.51. Zinc borate is an inorganic additive flame retardant, which is characterized by good thermal stability, I .e. flame retardant and smoke elimination. It can replace antimony trioxide in some products and can also be used in conjunction with other inorganic flame retardants with better effect. Anhydrous zinc borate molecular structure formula is 2ZnO · 3B2O3, white powder, excellent fluidity, temperature resistance to 600 ℃, low heat release rate. Very low water solubility, no migration, and excellent charring performance, can be compounded with other additives into halogen-free expansion flame retardant, can be used as a high processing temperature polymer (polyether ketone, polyalum, polyester, nylon, fluorine-containing polymer, etc.) excellent flame retardant and smoke suppression agent.

Zinc Borate

Tris (2-chloroethyl) phosphate abbreviation: TCEP molecular formula: C 6 H 12O 4 CL 3 P molecular weight: 285.5 Tris (2-chloropropyl) phosphate abbreviation: TCPP molecular formula: C 9H 18C l3P O 4 molecular weight: 327.56

TCEP TCPP