iphepha_ibhena

imveliso

Isalicylaldehyde(CAS#90-02-8)

Ipropati yeMichiza:

Ifomula yeemolekyuli C7H6O2
IMisa yeMolar 122.12
Ukuxinana 1.146 g/mL ku-25 °C (lit.)
Indawo yokunyibilika 1-2 °C (lit.)
Indawo yeBoling 197 °C (isibane.)
Indawo yokuflasha 170°F
Inombolo yeJECFA 897
Ukunyibilika kwamanzi inyibilika kancinane
Ukunyibilika 4.9g/l
Uxinzelelo loMphunga 1 mm Hg ( 33 °C)
Ukuxinana komphunga 4.2 (vs umoya)
Imbonakalo Ulwelo
Umbala Mthubi ocacileyo
Ivumba Iiamangile ezikrakra
Umda wokuvezwa ACGIH: TWA 5 ppm (Isikhumba)OSHA: TWA 5 ppm(19 mg/m3)NIOSH: IDLH 250 ppm; TWA 5 ppm(19 mg/m3); Isilingi 15.6 ppm(60 mg/m3)
Merck 14,8326
I-BRN 471388
pKa 8.37(nge-25℃)
PH 6-8 (H2O, 20℃)Ayisebenzi
Imeko yoGcino -20°C
Uzinzo Izinzile. Ukutsha. Ukungahambelani neziseko ezinamandla, ii-agent zokunciphisa ezinamandla, i-acids eqinile, i-oxidizing agents ezinamandla.
Inovakalelo Uvakalelo loMoya kunye nokuKhanya
Refractive Index n20/D 1.573(lit.)
IiPropati zoMzimba kunye nezeMichiza Ulwelo olungenambala, olucacileyo, olunamafutha, olunevumba elitshisayo kunye nevumba le-almond; Uxinzelelo lomphunga:.13kPa/33 ℃; Indawo edanyazayo: 76 ℃; Indawo yokunyibilika -7 ℃; Indawo yokubilisa 197 ℃; Ukunyibilika kancinci emanzini, ukunyibilika kwi-ethanol, i-ether; Ubuninzi: Ubuninzi bobudlelwane (amanzi = 1)1.17; uzinzo: Izinzile
Sebenzisa Eyona nto isetyenziswayo: isetyenziswa njengeejenti zohlalutyo, iziqholo, izongezo zepetroli kunye ne-organic synthesis.

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iikhowudi zoMngcipheko I-R21/22 – Iyingozi xa udibana nolusu kwaye ukuba uginyiwe.
I-R36/38 – Iyacaphukisa amehlo kunye nolusu.
R68 – Umngcipheko onokubakho weziphumo ezingajikiyo
R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu.
I-R20/21/22 – Iyingozi ngokuphefumla, xa udibana nolusu naxa uginyiwe.
I-R51 – Inetyhefu kwizinto eziphila emanzini
I-R36 – Iyandicaphukisa emehlweni
R51/53 – Ityhefu kwizinto eziphila emanzini, inokubangela iziphumo ezibi zexesha elide kwindawo ehlala emanzini.
I-R22 – Iyingozi xa iginyiwe
Inkcazelo yoKhuseleko S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango.
S36/37 – Nxiba iimpahla ezifanelekileyo zokukhusela kunye neeglavu.
S36/37/39 – Nxiba iimpahla ezikhuselayo ezifanelekileyo, iiglavu kunye nokhuseleko lwamehlo/ubuso.
S36 – Nxiba iimpahla ezifanelekileyo ezikhuselayo.
S61 –Kuphephe ukukhutshelwa kokusingqongileyo. Jonga kwimiyalelo ekhethekileyo / kumaphepha edatha yokhuseleko.
S64 -
S29/35 -
Izazisi ze-UN 3082
WGK eJamani 2
RTECS VN5250000
FLUKA BRAND F IIKHOWUDI 8-10-23
I-TSCA Ewe
Ikhowudi ye-HS 29122990
IKlasi yeeNgozi 6.1(b)
Iqela lokuPakisha II
Ubutyhefu I-MLD kwiimpuku (mg/kg): 900-1000 sc (Binet)

 

Intshayelelo

I-salicylaldehyde yi-organic compound. Oku kulandelayo kukwazisa kwiipropati, ukusetyenziswa, iindlela zokulungiselela kunye nolwazi lokhuseleko lwe-salicylaldehyde:

 

Umgangatho:

- Imbonakalo: Isalicylaldehyde lulwelo olungenambala ukuya kumthubi kunye nevumba elikhethekileyo lealmondi elikrakra.

- Ukunyibilika: I-salicylaldehyde inonyibiliko ophezulu emanzini kwaye iyanyibilika nakwizinyibilikisi ezininzi zendalo.

 

Sebenzisa:

- Iincasa kunye neencasa: I-salicylaldehyde inevumba elimnandi le-almond elikrakra kwaye lisetyenziswa ngokuqhelekileyo kwiziqholo, iisepha kunye necuba njengenye yezinto ezivumba limnandi.

 

Indlela:

Ngokuqhelekileyo, i-salicylaldehyde inokuveliswa kwi-salicylic acid ngokuphendula kwe-redox. Eyona oxidant isetyenziswa kakhulu sisinyibiliko esine asidi ye potassium permanganate.

- Enye indlela yokulungiselela kukufumana i-salicylyl alcohol ester nge-chlorination ester yephenol kunye ne-chloroform catalyzed yi-hydrochloric acid, kwaye emva koko ufumane i-salicylyldehyde nge-hydrolysis reaction catalyzed by acid.

 

Ulwazi ngoKhuseleko:

- I-salicylaldehyde yikhemikhali enzima kwaye kufuneka igwenywe ekudibaneni ngqo nolusu kunye namehlo.

- Xa usebenzisa okanye uphethe i-salicylaldehyde, gcina iimeko ezifanelekileyo zokungenisa umoya kwaye ugweme ukuphefumla umphunga wayo.

- Xa ugcina i-salicylaldehyde, kufuneka igcinwe kwisitya esingenawo umoya, kude nokutshisa kunye ne-oxidants.

- Ukuba i-salicylaldehyde ifakwe okanye ifakwe ngempazamo, funa uncedo lwezonyango ngokukhawuleza.


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