高清无码在线观看的网站亚洲国产视频,,影音先锋亚洲二区综合精品在线,,国产熟女激情99精品在线观看欧美日韩国产在线

<span id="k2fme"><code id="k2fme"><kbd id="k2fme"></kbd></code></span>
<dfn id="k2fme"></dfn>
  • <fieldset id="k2fme"><li id="k2fme"><tfoot id="k2fme"></tfoot></li></fieldset>
    <menuitem id="k2fme"></menuitem>
  • tel: 0632-6351666
    BENZOIC ACID
    測(cè)試

    BENZOIC ACID

     

    Quick Details:

     

    CAS No.:65-85-0                        MF:C7H6O2    

    EINECS No.:200-618-2           Place of Origin:China

    Type:Preservatives, Preservatives                    Brand Name:Luhu

    Model Number:Powder/flake                          Appearance:White crystalline flakes

    Shelf Life:24 MONTHS                                      Packing:25KG/BAG

    Application:Food additives preservative

    Certificates:Kosher/ Halal/ISO/HACCP             Storage:Cold Dry Place

    Assay:99.5%-100.5%                                         Standard:Food grade/Tech grade

     

    Product Description:

    Encyclopedia Britannica describes benzoic acid as a colorless organic compound. It is classified as a carboxylic acid, which means it is formed of a carbon bonded to an oxygen atom and a hydroxyl group (-OH). It is weakly acidic, with a pH of 2.8. In normal conditions it has a white, flaky appearance that actually consists of small, needle-like crystals.

     

     

    Application:

     

    Both benzoic acid and sodium benzoate, its salt form, have inhibitory effects on the growth of yeast, a major cause of food spoilage. In particular, yeast is particularly devastating in foods and drinks with a low pH and a high sugar content. A study published in 1991 in Applied and Environmental Microbiology described the metabolic disruption benzoic acid wreaks upon yeast cells. By slowing the yeast's ability to ferment sugars, benzoic acid starves the yeast of energy and prevents its growth.

     

    SPECIFICATION:

     

    APPEARANCE

    WHITE CRYSTALLINE FLAKES

    IR

    POSITIVE

    RETENTION TIME

    POSITIVE

    BENZOATE

    POSITIVE

    ASSAY

    99.5%-100.5%

    READILY CARBONIZABLE SUBSTANCE

    PASSED

    READILY OXIDIZABLE SUBSTANCE

    PASSED

    RESIDUE ON IGNITION%

    0.05MAX

    SOLIDIFICATION POINT(℃)

    121-123

    WATER %

    0.7 MAX

    LEAD

    2PPM MAX

    HEAVY METALS(IN TERMS OF LEAD)

    10PPM MAX

    苯甲酸.png