Tuam Tshoj Phenolphthalein CAS 77-09-8

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Phenolphthalein CAS 77-09-8 nrog tus nqi zoo tshaj


  • Khoom npe:Phenolphthalein
  • CAS:77-09-8 ib
  • MF:C20H14O4
  • MW:318.32 Nws
  • EINECS:201-004-7
  • Cim:neeg tsim khoom
  • Pob:1 kg / kg los yog 25 kg / nruas
  • Product Detail

    Khoom cim npe

    Kev piav qhia

    Khoom npe: Phenolphthalein
    CAS: 77-09-8 Nr
    MF: C20H14O4
    PIB: 318.32
    PIB: 201-004-7
    Melting point: 261-263 ° C (lit.)
    Kub taw tes: 417.49 ° C (kwv yees ntxhib)
    Qhov ceev: 1.27 g / cm3 ntawm 32 ° C
    Refractive Index: 1.5400 (kwv yees)
    Kub: 24 ° C
    PH: 7.8 ~ 10.0

    Specification

    Qhov tshwm sim Dawb hmoov
    Assay 99% min
    Melting point 261-263 ° C (lit.)
    Boiling point 417.49 ° C (kev kwv yees kwv yees)

    Daim ntawv thov

    1. Chaw tsim tshuaj paus Phenolphthalein CAS 77-09-8 siv los ua cov kua qaub-puag qhia thiab irritant laxative rau kev kho mob cem quav.
    2. Acid-base indicator, non-aqueous titration indicator, chromatographic analysis reagent.

    Kev them nyiaj

    * Peb tuaj yeem muab ntau txoj kev them nyiaj rau cov neeg siv khoom xaiv.
    * Thaum tus nqi me me, cov neeg siv khoom feem ntau them nyiaj los ntawm PayPal, Western union, Alibaba, thiab lwm yam.
    * Thaum tus nqi loj, cov neeg siv khoom feem ntau them nyiaj los ntawm T / T, L / C thaum pom, Alibaba, thiab lwm yam.
    * Dhau li ntawd, cov neeg siv khoom ntau dua yuav siv Alipay lossis WeChat them kom them nyiaj.

    kev them nyiaj

    Cia tej yam kev mob

    Khaws kaw nyob rau hauv chav tsev kub.

    Kev ruaj ntseg

    Nws yog liab thaum yaj nyob rau hauv dilute alkali tov.

    FAQ

    1. Koj puas tuaj yeem muab kev pabcuam customized?
    RE: Yog lawm, tau kawg, peb tuaj yeem kho cov khoom, daim ntawv lo lossis ntim raws li koj xav tau.

    2. Kuv tuaj yeem tau txais tus nqi li cas?
    RE: Hu rau peb nrog koj cov kev xav tau, xws li cov khoom, spec, kom muaj nuj nqis, lo lus uas peb (chaw nres nkoj), thiab lwm yam, ces peb yuav hais tsis pub dhau 3 teev ua haujlwm tom qab peb tau txais koj qhov kev nug.

    3. Lub sijhawm them nyiaj twg koj lees txais?
    RE: Peb lees txais T / T, L / C, Alibaba, PayPal, Western union, Alipay, WeChat Them, thiab lwm yam.

    4. Lub sij hawm ua lag luam twg koj feem ntau ua?
    RE: EXW, FCA, FOB, CFR, CIF, CPT, DDU, DDP, thiab lwm yam. Nyob ntawm koj qhov kev thov.

    FAQ

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