P-Hydroxybenzoic acid
Time:2018/11/26
Classification:Acid

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    • P-hydroxybenzoic Acid CAS No. 99-96-7

      P-hydroxybenzoic Acid is white crystal powder without any smell but is astringent.  P-hydroxybenzoic Acid is easily dissolved in hot water, alcohol, ether, acetone; slightly dissolved in cold water, benzene, and not dissolved in carbon bisulfide. It is dissolved in 125 cold water and relative density is 1.46.

       

      Specification of P-Hydroxybenzoic Acid

       

      Item

      Specification

      Polymer Grade

      Technical Grade

      Appearance

      white crystal powder

      white crystal powder

      Purity(on dry base) %

      99.6

      99.0

      Melting Point

      214-217

      212-216

      Odor

      odorless

      odorless

      Solubility

      Clear and transparent

      clear and transparent

      Loss on Drying %

      0.20

      0.50

      Color(Pt-Co)

      10

      40

      Ash %

      0.02

      0.15

      Sulfate(SO42-)

      0.01

      0.05

      Chloride(Cl-) %

      0.005

      0.02

      Phenol %

      0.01

      0.10

      Salicylic Acid %

      0.02

      0.10

      4-Hydroxyisophthalic Acid(HIPA) ppm

      500

      /

      Insolubles in Methanol ppm

      50

      /

      Potassium(K+) ppm

      5

      /

      Sodium (Na+) ppm

      5

      /

      Iron (Fe) ppm

      5

      /

      Ca2++Mg2+ppm

      5

      /

       

      Usage of P-Hydroxybenzoic Acid

       

      This product could be used an intermediate of antiseptics, dyestuff, medicine and injection molding. Nipagins could be gained by its esterfication with alcohol. It is also the main raw material for liquid crystal polymer and material for pesticide intermediates.

       

      Packaging & Shipping

       25kg/drum,1kg/bag or according to customer request 

       

      Transit could be DHL,UPS,TNT,EMS,Fedex,and so on.

      For mass orders, it will be delivered by air or sea.


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