Khoom Description
Kev taw qhia thiab kev siv CAS: 1445-69-8|Phthalhydrazide
Siv los ua ib qho nruab nrab rau kws tshuaj dihydralazophthalazine. Txoj kev tsim khoom yog tau los ntawm reacting phthalic anhydride thiab hydrazine hydrate. Muab ethanol, hydrazine hydrate, thiab phthalic anhydride rau hauv cov tshuaj tiv thaiv lub lauj kaub ua ntu zus, do, thiab ua kom sov kom reflux rau 8 teev. Evaporate cov ethanol kom txog rau thaum lub reactant ua ib tug muab tshuaj txhuam. Txias rau 40 degree, ntxiv cov dej uas tsim nyog, lim, ntxuav nrog dej rau pH 6.5, thiab qhuav kom tau diketophthalazine.
Specification ntawm CAS: 1445-69-8|Phthalhydrazide
Melting point>300 degree (lit.)
Kub taw tes 288.82 degree (roughestimate)
Qhov ceev 1.3264 (roughestimate)
Refractive index 1.5770 (kwv yees)
Cia tej yam kev mob Sealedindry, RoomTemperatureSolubilitySoluble nyob rau hauv acetone thiab acetic acid.
Form Hmoov thiab Blocks
Acidity coefficient (pKa)10.70 ± 0.20 (Tshaj tawm)
xim: Dawb
Pob ntawm CAS: 1445-69-8|Phthalhydrazide
25kg / nruas
Cov khoom no siv tau rau 24 lub hlis txij li hnub tsim khoom thaum khaws cia hauv lub xeev sov so.
Kev nyab xeeb thiab kev thauj mus los
Cov khoom no yuav tsum tau khaws cia thiab kaw hauv chav tsev kub. Cov neeg siv khoom yuav tsum ua tib zoo nyeem cov khoom kho mob, cov ntaub ntawv kev nyab xeeb cov ntaub ntawv (MSDS), thiab cov ntawv sau ua ntej siv, paub txog cov khoom lag luam cov ntaub ntawv kev nyab xeeb, cov lus qhia ua haujlwm, thiab kev cuam tshuam ib puag ncig, thiab hnav kev tiv thaiv tus kheej tsim nyog raws li qhov xav tau. khoom siv.
Cim npe nrov: cas:1445-69-8|phthalhydrazide, Tuam Tshoj cas:1445-69-8|phthalhydrazide manufacturers, hoobkas
