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

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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

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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 nqi twg koj 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.