CAS: 81-84-5|1, 8-Naphthalic Anhydride

Khoom Description

Cov tshuaj nrog CAS tus lej 81 - 84 - 5 yog 1, 8 - Naphthalic Anhydride. Nws cov qauv molecular yog C₁₂H₆O₃, nws qhov hnyav molecular yog kwv yees li ntawm 198.17 thiab 198.18, thiab nws tus lej EINECS yog 201 - 380 - 2.
1,8-Naphthalic Anhydride zoo li lub teeb daj hmoov los yog lub teeb daj-xim av koob-zoo li cov muaju. Nws qhov kub kub yog 407.5 degree, thiab nws kuj muaj cov yam ntxwv sublimation. Ntxiv mus, nws lub teeb nyem yog 272 degree. Nyob rau hauv cov nqe lus ntawm solubility, nws yog insoluble nyob rau hauv dej, ether, thiab benzene, me ntsis soluble nyob rau hauv kub ethanol, soluble nyob rau hauv kub acetic acid, soluble nyob rau hauv chloroform thaum rhuab, thiab soluble nyob rau hauv DMSO.
1. Thaum nws cov hmoov sib tov nrog huab cua thiab ncav cuag ib qho concentration, nws yuav tawg thaum nws ntsib lub txim. Tsis tas li ntawd, nws yuav maj mam decompose nyob rau hauv cov huab cua ntub.

Cov ntaub ntawv yooj yim

Cov ntaub ntawv kev nyab xeeb

Toxicity: Tsawg toxicity, LD50: 12340mg / kg (rat qhov ncauj); LC50.
Hazard qeb code: R36/37/38, qhia khaus qhov muag, ua pa thiab tawv nqaij.
Cov lus qhia txog kev nyab xeeb: S24/25, piv txwv li tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag.

Siv

1, 8-Naphthalic anhydride, 98% yog ib qho tseem ceeb raw khoom rau synthesizing perylene dyes, pigments, thiab fluorescent whitening agents. Nws kuj tseem siv tau los ua tus neeg sawv cev fluorescent whitening rau dyes, tshuaj tua kab, tshuaj, thiab cov ntaub ntawv polymer. Ntxiv mus, nws yog siv nyob rau hauv kev npaj ntawm naphthalimide analogs thiab txawm siv tau raws li ib tug anticancer neeg sawv cev.

Tuam txhab Profile

Gneechem, nyob rau hauv Henan Xeev, Tuam Tshoj, yog ib feem ntawm GNEE Group, nrog 22 xyoo ntawm kev ua lag luam txawv teb chaws, tshwj xeeb hauv kev muab cov khoom zoo tshuaj raw khoom thiab kev lag luam kev pabcuam rau cov neeg siv khoom thoob ntiaj teb. Peb muab cov khoom siv tshuaj lom neeg yooj yim, cov tshuaj zoo thiab cov tshuaj tshwj xeeb rau ntau qhov kev lag luam.Peb muaj ISO9001 tau ntawv pov thawj thiab tau lees paub los ntawm ntau qhov kev tsim nyog hauv tsev thiab txawv teb chaws, ua rau peb muaj kev ntseeg siab ntawm peb cov neeg siv khoom.

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