Formic acid physicochemical khoom

Formic acid physicochemical tshuaj,
Formic Acid, Formic Acid Chaw tsim tshuaj paus, Formic Acid Nqe, Formic Acid Supplier,

Txheej txheem

Peb tsimFormic Acidlos ntawm cov qib siab tshaj plaws Methyl Formate

tshuab. Ua ntej, Methyl Formate yog tsim los ntawm CO thiab Methanol nrog rau kev ua ntawm catalyst. Raws li qhov kub thiab txias, Methyl Formate yog hydrolyzed rau Formic Acid. Tsawg purity Formic Acidsolution yuav ua rau cov neeg siab dua kom tau raws li qhov xav tau sib txawv-

cov lus ntawm cov neeg siv khoom.

Reaction Equation: HCOOCH3 + H2O HCOOH + CH3OH Production

Daim ntawv thov

1. Latex kev lag luam: Coagulation, thiab lwm yam.

2. Pharmaceutical kev lag luam: Caffeine, Analgin,

Aminopyrine, Aminophyl-line, Theobromine bomeol, Vitamin B1, Metronidazole, Mebendazole, thiab lwm yam.

3. Kev lag luam tshuaj tua kab: Triadimefon, Triazolone,

Tricyclazole, Triazole, Triazophos, Paclobutrazol, Sumagic, Disinfest, Dicofol, thiab lwm yam.

4. Kev lag luam tshuaj: Calcium formate, Sodium formate, Ammoniumformate, Potassium formate, Ethyl formate, Barium formate, DMF, Formamide, Roj hmab antioxidant, Pentaerythrite, Neopentyl glycol, ESO, 2-Ethy! hexyl ester ntawm epoxidized soybean roj, Pivaloyl Chloride,

Xim tshem tawm, Phenolic resin, Acid ntxuav ntawm steel ntau lawm, Methane amide, thiab lwm yam.

5.Leather kev lag luam: Tanning, deliming, Neutralizer, thiab lwm yam.

6. Kev lag luam nqaij qaib: Silage, thiab lwm yam.

7. Lwm tus: tuaj yeem tsim luam ntawv thiab dyeing mordant.Coloring

thiab tus neeg sawv cev tiav rau Fiber thiab ntawv, Plasticizer, Khoom noj khoom haus tshiab, pub additive, thiab lwm yam

8. Kev tsim cov tshuaj lom neeg: HCOOH = (dense H, So4catalyze)heat = CO + H, O

9.Deoxidizer: Test As, Bi, Al, Cu, Au, Im, Fe, Pb, Mn, Hg, Mo, Ag, Zn, etc.Test Ce, Re, Wo.Test aromatic primary amine, secondary amine.dis- Cov kuab tshuaj rau kev kuaj molecular WT thiab crystallization.Test methoxyl.

10.Fix-er rau microscopic tsom xam.Producing formate.chemical cleaningagent, Formic acid yog dawb ntawm CL, yuav siv tau rau tu cov khoom stainlesssteel

Flamable. Nws tuaj yeem ua rau miscible nrog dej, ethanol, ether thiab glycerol, thiab feem ntau cov polar organic solvents, thiab kuj muaj qee yam solubility hauv hydrocarbons.

Tus txheeb ze ntom ntom (d204) yog 1.220. Refractive Index

1.3714 ib. Lub combustion kub yog 254.4 kJ / mol, qhov tseem ceeb kub yog 306.8 ℃, thiab lub siab tseem ceeb yog 8.63 MPa. Flash point 68.9 ℃ (qhib khob). Qhov ceev 1.22, txheeb ze vapor ceev 1.59 (cua = 1), saturated vapor siab (24 ℃) 5.33kPa.

Cov ntsiab lus siab ntawm formic acid zoo li khov rau lub caij ntuj no.

Forbidden compounds: muaj zog oxidant, muaj zog alkali, active hlau hmoov.

Cov yam ntxwv txaus ntshai: cov vapor thiab huab cua tsim ib qho kev sib xyaw tawg, uas ua rau muaj kev sib tsoo thiab tawg thaum qhib hluav taws thiab lub zog kub kub. Reacts nrog muaj zog oxidants.

Solubility: miscible nrog dej, insoluble nyob rau hauv hydrocarbons, miscible nyob rau hauv cawv.

Hauv hydrocarbons thiab gaseous xeev, formic acid tshwm sim raws li dimers sib koom los ntawm hydrogen bonds. Nyob rau hauv lub xeev gaseous, hydrogen bonding ua rau ib tug loj sib txawv ntawm formic acid gas thiab zoo tagnrho gas sib npaug ntawm lub xeev. Cov kua thiab cov khoom formic acid muaj cov formic acid molecules txuas ntxiv ua ke los ntawm hydrogen bonds.

Formic acid yog decomposed rau hauv CO thiab H2O nyob rau hauv catalysis ntawm concentrated sulfuric acid:

Vim yog cov qauv tshwj xeeb ntawm formic acid, ib qho ntawm nws cov hydrogen atoms ncaj qha txuas nrog pawg carboxyl. Los yog koj tuaj yeem saib nws li hydroxyformaldehyde. Yog li formic acid muaj ob qho tib si acid thiab aldehyde zog.

Formic acid muaj cov khoom zoo ib yam li feem ntau lwm cov carboxylic acids, txawm hais tias nyob rau hauv ib txwm muaj xwm txheej formic acid tsis tsim acyl chloride lossis anhydride. Lub cev qhuav dej decomposes formic acid rau hauv carbon monoxide thiab dej. Formic acid muaj cov txiaj ntsig zoo sib xws rau aldehydes. Nws tuaj yeem pib cov tshuaj tiv thaiv iav nyiaj, txo cov nyiaj ions hauv cov nyiaj ammonia complex ions rau cov hlau hlau, thiab nws tus kheej yog oxidized rau hauv carbon dioxide thiab dej:

Formic acid yog tib qho carboxylic acid uas tuaj yeem ntxiv rau olefins. Formic acid nyob rau hauv qhov kev txiav txim ntawm cov kua qaub (xws li sulfuric acid, hydrofluoric acid), thiab olefins sai sai ua rau cov qauv. Txawm li cas los xij, ib sab cov tshuaj tiv thaiv zoo ib yam li Koch cov tshuaj tiv thaiv kuj tuaj yeem tshwm sim, nrog rau cov khoom lag luam yog ntau dua carboxylic acid.

Pair tus nqi ntawm octanol / dej muab faib coefficient: -0.54, siab tawg txwv % (V / V): 57.0, qis tawg txwv % (V / V): 18.0.

Formic acid yog ib qho muaj zog txo tus neeg sawv cev thiab cov iav nyiaj iav tuaj yeem tshwm sim. Nws yog acidic tshaj plaws nyob rau hauv saturated fatty acids, thiab dissociation tas li yog 2.1 × 10-4. Nws maj mam tawg mus rau hauv cov pa roj carbon monoxide thiab dej ntawm chav tsev kub. Nws yog rhuab mus rau 60 ~ 80 ℃ nrog concentrated sulfuric acid kom decompose thiab tso carbon monoxide. Thaum formic acid yog rhuab tshaj 160 ° C, nws decomposes tso carbon dioxide thiab hydrogen. Cov alkali hlau ntsev ntawm formic acid yog rhuab mus rau 400 ° C los tsim oxalates.

Cov ntaub ntawv molecular

1. Molar refractive index: 8.40

Molar ntim (m / mol): 39.8

3. Isotropic tshwj xeeb ntim (90.2K): 97.5

4, nto nro (dyne / cm): 35.8

5, polarizability (10cm): 3.33