亚洲第一区二区视频网,国产日韩欧美亚洲精品中字,亚洲欧洲中文字幕无线乱码,黑人欧美精美视频一区

    <menu id="0iy77"></menu><strike id="0iy77"><small id="0iy77"></small></strike>

  1. Medical food preservative series,APIs

    Cosmetic materialsVitamin series,etc.

    Commodity name Germall PP
    Product name Propyl paraben
    CAS#
    Molecular formula

    C10H12O3

    Structural formula

    Other

    Molecular weight : 180.20

    Physical and chemical properties: white crystal, soluble in alcohol and ether, almost insoluble in water, the relative density (d4102) 1.0630, refractive index (nD102) 1.5050.

    Product quality standards
    Item Index
    Properties White powder
    Assay (on a dry basis),% 98-102
    Melting point, ° C 96-99
    Loss on drying,% ≤ 0.5
    Residue on ignition,% ≤ 0.1
    Acidity qualified
    P-hydroxybenzoic acid and salicylic acid qualified
    Solubility soluble in alcohol, ether and acetone, slightly soluble in water

    Use

    ● Global registration recognition, excellent safety, eye, no stimulation to skin, mucous membrane, no allergies
    ● widely used in a variety of resident and wash-off cosmetics and

    Packing 25KG/Cardboard drum, or upon your demands
    Storage Kept in dark, cool and dry place, sealed tightly. Shelf life is 36 months.
    --Back--