Foni: + 86 21 6460 6569
tsamba_banner

mankhwala

Formic acid(CAS#64-18-6) Chithunzi Chowonetsedwa
  • Formic acid(CAS#64-18-6) 1

Formic acid(CAS#64-18-6)

Chemical Property:

Molecular Formula CH2O2
Misa ya Molar 46.03
Kuchulukana 1.22 g/mL pa 25 °C (kuyatsa)
Melting Point 8.2-8.4 °C (kuyatsa)
Boling Point 100-101 °C (kuyatsa)
Pophulikira 133 ° F
Nambala ya JECFA 79
Kusungunuka kwamadzi MISCIBLE
Kusungunuka H2O: soluble1g/10 mL, zomveka, zopanda mtundu
Kuthamanga kwa Vapor 52 mm Hg (37 °C)
Kuchuluka kwa Vapor 1.03 (vs mpweya)
Maonekedwe Madzi
Specific Gravity 1.216 (20 ℃/20 ℃)
Mtundu APHA: ≤15
Malire Owonetsera TLV-TWA 5 ppm (～9 mg/m3) (ACGIH,MSHA, OSHA, ndi NIOSH); IDLH 100ppm (180 mg/m3) (NIOSH).
Maximum wavelength(λmax) ['λ: 260nm Amax: 0.03',
, 'λ: 280 nm Amax: 0.01']
Merck 14,4241
Mtengo wa BRN 1209246
pKa 3.75 (pa 20 ℃)
PH 3.47(1 mm solution);2.91(10 mm solution);2.38(100 mm solution);
Mkhalidwe Wosungira 2-8 ° C
Kukhazikika Wokhazikika. Zinthu zomwe zikuyenera kupewedwa ndi monga maziko amphamvu, oxidizing amphamvu ndi zitsulo za ufa, mowa wa furfuryl. Zoyaka. Hygroscopic. Kupanikizika kumatha kukwera m'mabotolo otsekedwa mwamphamvu,
Zomverera Hygroscopic
Zophulika Malire 12-38% (V)
Refractive Index n20/D 1.377
Zakuthupi ndi Zamankhwala Maonekedwe amadzimadzi oyaka ndi fungo lamphamvu.

malo osungunuka 8.4 ℃

otentha kutentha 100.7 ℃

kachulukidwe wachibale 1.220

Refractive index 1.3714

kung'anima 69 ℃

kusungunuka: kusungunuka m'madzi, ethanol ndi ether, kusungunuka pang'ono mu benzene.
Gwiritsani ntchito Pokonzekera formate, formate, formamide, etc., komanso mankhwala, kusindikiza ndi utoto, utoto, zikopa ndi mafakitale ena ali ndi ntchito inayake.

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa R23/24/25 – Poizoni pokoka mpweya, kukhudzana ndi khungu komanso kummeza.
R34 - Imayambitsa kuyaka
R40 - Umboni wochepa wa zotsatira za carcinogenic
R43 - Itha kuyambitsa chidwi pakukhudzana ndi khungu
R35 - Imayambitsa mayaka kwambiri
R36/38 - Zokwiyitsa maso ndi khungu.
R10 - Yoyaka
Kufotokozera Zachitetezo S36/37 - Valani zovala zoyenera zodzitchinjiriza ndi magolovesi.
S45 - Pakachitika ngozi kapena ngati simukumva bwino, funsani upangiri wachipatala nthawi yomweyo (onetsani chizindikirocho ngati kuli kotheka.)
S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala.
S23 - Osapuma mpweya.
S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso / kumaso.
Ma ID a UN UN 1198 3/PG 3
WGK Germany 2
Mtengo wa RTECS Mtengo wa LP8925000
FLUKA BRAND F CODES 10
TSCA Inde
HS kodi 29151100
Kalasi Yowopsa 8
Packing Group II
Poizoni LD50 mu mbewa (mg / kg): 1100 pakamwa; 145 iv (Malony)

 

Mawu Oyamba

formic acid) ndi madzi opanda mtundu okhala ndi fungo lopweteka. Zotsatirazi ndizo zikuluzikulu za formic acid:

 

Thupi: Formic acid ndi yosungunuka kwambiri ndipo imasungunuka m'madzi ndi zosungunulira zambiri.

 

Chemical properties: Formic acid ndi chinthu chochepetsera chomwe chimapangidwa mosavuta ndi carbon dioxide ndi madzi. Chophatikizikacho chimachita ndi maziko olimba kuti apange mawonekedwe.

 

Ntchito zazikulu za formic acid ndi izi:

 

Monga mankhwala ophera tizilombo komanso oteteza, formic acid angagwiritsidwe ntchito popanga utoto ndi zikopa.

 

Formic acid itha kugwiritsidwanso ntchito ngati chosungunula madzi oundana komanso kupha mite.

 

Pali njira ziwiri zazikulu zopangira formic acid:

 

Njira Yachikale: Njira yopukutira kuti apange formic acid pogwiritsa ntchito oxidation pang'ono ya nkhuni.

 

Njira yamakono: formic acid imakonzedwa ndi methanol oxidation.

 

Njira zopewera kugwiritsa ntchito bwino kwa formic acid ndi izi:

 

Formic acid imakhala ndi fungo loipa komanso zowononga, kotero muyenera kuvala magolovesi oteteza ndi magalasi mukamagwiritsa ntchito.

 

Pewani kulowetsa mpweya wa formic acid kapena fumbi, ndipo onetsetsani kuti mpweya wabwino umagwiritsidwa ntchito.

 

Formic acid imatha kuyaka ndipo iyenera kusungidwa kutali ndi moto ndi zinthu zomwe zimatha kuyaka.

 

  • Zam'mbuyo:
  • Ena:
    • Lembani uthenga wanu apa ndikutumiza kwa ife

    zokhudzana ndi mankhwala