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Bisphenol A (Bisphenol A)

National standard

Bargaining 10-21 09:11 Update

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Bisphenol A

Shanghai warehouse

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Buyers must arrange their own vehicles to bear the freight costs
Specification weight 750KG,900KG

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Inquiry
  • Bisphenol A
  • 2,2-Bis(4-hydroxyphenyl)propane
  • Phenol, 4,4‘-(1-methylethylidene)bis-
  • Bicifadinum
  • Bicifadino
+Expand -Stow
80-05-7 C15H16O2 National standard 228.29 National standard Domestic, imported Huanyi world Sinopec Sanjing, import, etc. 2907230001

Product Description

Nature Description

Phenol A is a white needle crystal or flake powder. Combustible. Micro-strip phenol odor. The melting point of pure products is 155-158 ℃, the melting point of industrial products is 150-152 ℃, the boiling point is 250-252 ℃(1.733kPa), the relative density is 1.195(25/25 ℃), and the flash point is 79.4 ℃. Soluble in ethanol, acetone, ether, benzene and dilute alkali solution, slightly soluble in carbon tetrachloride, almost insoluble in water.
750KG,900KG 220oC(4MMHG) 152-158oC 227oC <0.1G/100MLAT21.5oC <0.1G/100MLAT21.5oC

Product Applications

Phenol A used to make epoxy resin, polycarbonate, polyphenoxy, etc.

Production method

Phenol A it is obtained by condensation of phenol and acetone in acidic medium.

When making phenol A with sulfuric acid as catalyst , the acid concentration is 72.5-76.3, and the reaction temperature is about 40℃. The reaction is carried out in a stirred tank, which can be produced by batch method or a continuous production device can be arranged. The product is neutralized, isolated and separated into crude phenol A, and the finished product is refined by dimethylbenzene-water extraction. Sulfuric acid method requires less equipment and simple process, but the product quality is poor, the raw material consumption is high, and there are more "three wastes", which is only suitable for medium and small batch production.

In order to obtain the polymerization grade of phenol A with good quality, the commonly used method of industry make is hydrogen chloride gas as catalyst. Acetone and phenol are mixed, and dry hydrogen chloride is used as catalyst to react under normal pressure. The reaction is carried out at 50-60 ℃ for 8-9 hours, and the concentration of hydrogen chloride in gas phase is kept above 96. In addition to producing bisphenol A, the reaction also generates some isomer, trihydroxy or monohydroxy byproducts. These small amounts of impurities do not affect the production of epoxy resin.

However, when used to manufacture polycarbonate, it must be refined. Tiger gram process is distillation and extraction crystallization under pressure to refine phenol A, which reduces the cost of the product. Raw material consumption quota: phenol 940 kg/t, acetone 320 kg/t, sulfuric acid (98)500 kg/t.

Security

Xn

S26: in case of contact with eyes, rinse with plenty of water immediately and send it to the doctor for diagnosis and treatment. S46: in case of accidental swallowing, seek doctor's advice immediately (display product container or label). S36/37/39: Wear suitable protective clothing, gloves and use goggles or mask.

R37: stimulates respiratory tract. R41: risk of serious eye damage. R43: skin contact will produce allergic reactions. R62: there is a risk of weakening reproductive capacity.

GHS05,GHS07,GHS08,GHS09

P280;P305+P351+P338+P310

Danger

H317;H318;H335;H361f;H411

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