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Methyl Paraben | 99-76-3

Methyl Paraben | 99-76-3


  • Ubwoko:Kurinda
  • EINECS Oya. ::202-785-7
  • CAS No. ::99-76-3
  • Qty muri 20 'FCL:10MT
  • Min. Tegeka:500KG
  • Gupakira:25KG / BAGS
  • Ibicuruzwa birambuye

    Ibicuruzwa

    Ibicuruzwa bisobanura

    Methyl paraben, nayo mEthyl Paraben, imwe muri parabene, ni uburyo bwo kubungabunga imiti ya CH3 (C6H4 (OH) COO). Ni methyl ester ya p-hydroxybenzoic aside.

    Kamere: ifu ya kirisiti yera cyangwa kristaline. Ahantu ho gushonga 115-118 ° C, aho batetse, 297-298 ° C. Gushonga muri Ethanol, etil ether na acetone, gushonga mikorobe mumazi, chloroform, carbone disulfide na peteroli ether. Impumuro idasanzwe nuburyohe, uburyohe busharira, Zhuo Ma.

    Kwitegura: p-hydroxybenzoic aside na Ethanol imbere ya catalizike ya acide sulfurike yo kwisuzumisha, esterifisation mumazi nyuma yo kurangiza kristu, hanyuma ikayungurura, mugutoragura ibicuruzwa. Koresha: abahuza kama. Kubibungabunga, imiti igabanya ubukana, ikoreshwa mubiribwa, kwisiga no gufata imiti. Ikoreshwa kandi mu gusesengura reagent. Ibicuruzwa bibumbabumbwe, umusemburo na bagiteri bifite ingaruka nini za antibacterial, umusemburo nububiko kugirango bigire uruhare rukomeye, ariko cyane cyane kuri bagiteri Gram-negative bacilli nuruhare rwabakene ba Lactobacillus. Ibiribwa nubuvuzi kubungabunga neza fungiside.

    Ibisobanuro

    INGINGO UMWIHARIKO
    Kugaragara Ifu ya kirisiti yera
    Isuku > = 99.0%
    Ingingo yo gushonga 125- 128
    Ibisigisigi byo gutwikwa = <0.1%
    Acide (mg / g) 4.0- 7.0
    Ibintu bifitanye isano = <0.5%
    Kumenyekanisha Hindura
    Igisubizo cyumvikana Birasobanutse kandi bisobanutse
    Icyuma kiremereye (nka Pb) = <10 ppm

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