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sehlahisoa

2,5-Dihydroxybenzoic acid(CAS#490-79-9)

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C7H6O4
'Misa oa Molar 154.12
Botenya 1.3725 (khakanyo e fosahetseng)
Melting Point 204-208°C(lebone)
Boling Point 237.46°C (khakanyo e boima)
Flash point 214°C
Ho qhibiliha ha Metsi qhibilihang
Solubility E qhibiliha ka methanol, metsi a acid
Khatello ea Mouoane 2.38E-07mmHg ho 25°C
Ponahalo Phofo e tšoeu kapa kristale
Mmala E tšoeu ho isa ho beige e khanyang
Merck 14,4398
BRN 2209119
pKa 2.97(ho 25℃)
PH 3.21(1 mM tharollo);2.56(10 mM tharollo);2.01(100 mM tharollo)
Boemo ba polokelo Boloka ka tlase ho +30°C.
E hloahloa E utloang khanya
Refractive Index 1.6400 (khakanyo)
MDL MFCD00002460
Thepa ea 'Mele le ea Lik'hemik'hale sebaka se qhibilihang ke 204-207°C
tharollo e qhibilihang ka metsi
Sebelisa E sebelisoa e le Phapang ea meriana

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Likhoutu tsa Kotsi R22 – E kotsi ha e kwetswe
R36/37/38 – Ho tena mahlo, tsamaiso ya ho hema le letlalo.
Tlhaloso ea Tšireletseho S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka.
S36 - Apara liaparo tse loketseng tsa tšireletso.
S37/39 - Apara liatlana tse loketseng le tšireletso ea mahlo / sefahleho
WGK Jeremane 3
RTECS LY3850000
TSCA Ee
Khoutu ea HS 29182990
Tsebiso ea Kotsi E kotsi

 

Selelekela

2,5-Dihydroxybenzoic acid ke motsoako oa lintho tse phelang. Se latelang ke selelekela sa sebopeho sa eona, tšebeliso, mokhoa oa ho lokisa le tlhaiso-leseling ea polokeho:

 

Boleng:

- Ponahalo: 2,5-dihydroxybenzoic acid ke phofo e tšoeu ea kristale.

- Sollubility: E ka qhibiliha ka metsing le ka har'a metsoako ea tlhaho e kang ethanol le chloroform.

- pH: E na le asiti e fokolang metsing a metsi.

 

Sebelisa:

- Lik'hemik'hale tsa lik'hemik'hale: 2,5-dihydroxybenzoic acid e ka sebelisoa e le lisebelisoa tse tala bakeng sa motsoako oa tlhaho 'me e ka kenya letsoho liketsong tse sa tšoaneng tsa lik'hemik'hale ho lokisa metsoako e meng.

 

Mokhoa:

- Mokhoa o atisang ho sebelisoa oa ho lokisa ke motsoako oa 2,5-dihydroxybenzoic acid ka thermal acidolysis ea phthalic acid.

 

Lintlha tsa Tšireletseho:

- 2,5-Dihydroxybenzoic acid e batla e le tlaase ho kotsi ho batho le tikoloho tlas'a maemo a tloaelehileng a ho sebetsa.

- E ka halefisa le ho senya mahlo le letlalo 'me e lokela ho qojoa ha e tšoaroa. Haeba ho kopane ka phoso, hlatsoa hang-hang ka metsi a mangata.

- Nakong ea polokelo, tlhokomelo e lokela ho nkoa ho qoba ho kopana le li-oxidants tse matla, mocheso o phahameng, le mehloli ea mollo ho fokotsa likotsi tse ka bang teng tsa polokeho.


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