What is TCEP?
1. The flame retardant TCEP has excellent flame retardancy, excellent low temperature resistance and ultraviolet resistance. Its vapor can only be ignited directly with an open flame above 225 ℃, but it will extinguish immediately after the ignition source is removed.
2. This product is widely used in chemical fiber fabrics and cellulose acetate as flame retardant. Besides self extinguishing, it can also improve water resistance, cold resistance and antistatic property.
3. Used as additive Halogenated Phosphate Flame Retardant and plasticizer.
Basic product elements
Appearance: colorless or light yellow oily transparent liquid
CAS No：115-96-8
Packing method: net weight 250kg / galvanized iron drum.
1. Product information:
Chinese Name: flame retardant TCEP, tris (2-chloroethyl) phosphate, tris (2-chloroethyl) phosphate (TCEP)
English Name: tris (2-chloroethyl) phosphate
Chinese alias: trichloroethyl phosphate flame retardant plasticizer; Triphosphate（ β- Ethyl chloride); 2-chloroethyl phosphate bis (2-chloroethyl) ester; (III)（ β- Chloroethyl) phosphate; Tris (2-chloroethyl) phosphate; TCEP； Trichloroethyl phosphate
CASRN：115-96-8
EINECS No.: 204-118-5
Molecular formula: c6h12cl3o4p
Molecular weight: 285.4898
2. Product physical information:
Appearance: pure flame retardant TCEP is colorless or light yellow oily transparent liquid with light cream flavor.
Refractive index: (n20d) 1.4731
Boiling point: 194 ℃
Flash point: 225 ℃
Freezing point: - 64 ℃
Decomposition temperature: 240-280 ℃
Viscosity: 38-47 centipoise (20 ℃)
Phosphorus content: 10.8%
Chlorine content: 37.3%, compatible with general organic solvents (such as alcohol, ketone, aromatic hydrocarbon, chloroform, etc.), insoluble in aliphatic hydrocarbon, almost insoluble in water, and with good hydrolysis stability. A small amount of decomposition occurs in alkaline solution. This product has no obvious corrosion.
3.Product process:
There are three industrial methods: the reaction of phosphorus oxychloride with chloroethanol; Phosphorus trichloride reacts with chloroethanol for reoxidation; Reaction of phosphorus oxychloride with ethylene oxide (a common industrial method).
1. Phosphorus oxychloride and ethylene oxide react at 50 ℃ with sodium metavanadate as catalyst, and the reactants are neutralized, washed with water, and dewatered in vacuum to remove the low boiling matter to obtain the finished product. Chloroethanol can also be used as raw material to react with phosphorus oxychloride or phosphorus trichloride to produce tris (2-chloroethyl) phosphate.
2. Put 326kg phosphorus oxychloride and 1.0kg sodium metavanadate into the reactor. Fill nitrogen to drive out the air in the reaction kettle, inject 650kg ethylene oxide under vacuum, and stir at 45-50 ℃ for 2-3H. After distilling out excess ethylene oxide, add alkali to neutralize to neutral, wash with water and dehydrate in vacuum. Get the finished product.
3. Put phosphorus oxychloride and sodium metaphosphate into the reaction kettle. Fill nitrogen to drive out the air, inject ethylene oxide under vacuum, and stir at 45-50 ℃ for 2-3H. After distilling out excess ethylene oxide, add alkali to neutralize to neutral, wash with water and dehydrate in vacuum to obtain the finished product.
4. Purpose:
1. The flame retardant TCEP has excellent flame retardancy, excellent low temperature resistance and ultraviolet resistance. Its vapor can only be ignited directly with an open flame above 225 ℃, but it will extinguish immediately after the ignition source is removed. Using this product as a flame retardant can not only improve the material grade of the flame retardant material, but also improve the water resistance, acid resistance, cold resistance and antistatic property of the flame retardant material. It is commonly used for flame retardant paint coatings based on nitrocellulose and acetate fiber, unsaturated polyester, polyurethane, acrylate, phenolic resin, etc. it can also be used as plasticizing flame retardant of soft PVC. The content of this product used for unsaturated polyester is 10% ~ 20%, and it can be about 10% in polyurethane rigid foams (with flame retardant polyether as raw material), and 5% ~ 10% in soft PVC as auxiliary plasticizing flame retardant. Flame retardant, separation solvent or extractant for rare metals such as uranium, thorium, plutonium and technetium.
2. This product is widely used in chemical fiber fabrics and cellulose acetate as flame retardant. Besides self extinguishing, it can also improve water resistance, cold resistance and antistatic property. The general dosage is 5-10 parts. This product is an excellent flame retardant for synthetic materials and has a good plasticizing effect. It is widely used in cellulose acetate, nitrocellulose varnish, ethyl cellulose, polyvinyl chloride, polyvinyl acetate, polyurethane, phenolic resin, etc. in addition to the self extinguishing property, the products can also improve the physical properties of the products. The products have a soft feel and can also be called petroleum additives and extractants of rare elements, It is also the main flame-retardant material of flame-retardant rubber conveyor belt, with a general addition of 5% ~ 10%.
3. Used as additive Halogenated Phosphate Flame Retardant and plasticizer. The molecule contains phosphorus and chlorine at the same time. It has remarkable flame retardancy, is not easy to volatilize and hydrolyze, and has good stability to ultraviolet rays. Suitable for phenolic resin, polyvinyl chloride, polyvinyl acetate, polyurethane, etc. It is also used as flame retardant of nitrocellulose coatings, flame retardant plasticizer of polyvinyl chloride, metal extractant, gasoline additive and polyimide processing aid. It can improve water resistance, weather resistance, cold resistance and antistatic property. The reference dosage is 5% ~ 20%.
5. Necessary data for flame retardant TCEP export:
CAS No.: 115-96-8
Customs Code: HS: 29199000.90
Tax refund: at present, the tax refund of tris (2-chloroethyl) phosphate (flame retardant TCEP) is 9%.
Raw materials: phosphorus oxychloride and ethylene oxide are used as raw materials.
It belongs to several categories of dangerous goods: at present, tris (2-chloroethyl) phosphate (flame retardant TCEP) belongs to 9 categories of dangerous goods.
Packing method: net weight: 250kg / galvanized iron bucket (20 tons in a small cabinet), 1000kg / IB bucket (18 tons in a small cabinet).