Sodium formate: ntau lawm, cov khoom thiab cov kev siv

Muaj ntau ntau cov tshuaj uas ua rau lub neej yooj yim dua rau cov niaj hnub tus txiv neej. Ib tug ntawm cov yog sodium formate. Cov mis ntawm no compound - HCOONa. Nws yog feem ntau kuj raug xa mus rau raws li sodium formate.

Txheej txheem cej luam

Sodium formate yog ib tug byproduct ua thaum lub sij hawm zus tau tej cov pentaerythritol. Qhov no cov ntaub ntawv uas yog feem ntau siv raws li ib tug txo neeg sawv cev nyob rau hauv cov organic synthesis tshua. Kev npaj ntawm sodium formate yog txuam nrog tej yam teeb meem nyob rau hauv lub purification ntawm no compound. Yog li ntawd, nyob rau hauv lub kawg cov khoom no yog ib txwm ib tug me ntsis admixture ntawm pentaerythritol thiab nws cov derivatives. Sodium formate - yog ib tug crystalline hmoov, dawb los yog me ntsis grayish xim. Tej zaum qhov muag raws li sodium formate nrog ib tug me ntsis greenish zas. Impurities tam sim no nyob rau hauv nws yog tsis pom mus rau tus liab qab qhov muag. Lub hmoov, uas yog marketed, qhov loj feem ntawm cov yooj yim tshuaj yuav tsum tsis tsawg tshaj li 92%. Qualitatively, sodium formate kev luj ntawm dej yuav tsum tsis txhob ntau tshaj 3%. Nyob rau hauv hais tias cov tshuaj muaj thiab sweeteners. Nyob rau hauv cov nqe lus ntawm lawv cov piam thaj cov ntsiab lus yuav tsis pub tshaj 1%.

Rau hnub tim, muaj yog tsis yog ib tug tib muaj ntau lawm ntawm no tshuaj. Txij li thaum sodium formate yog ua raws li ib tug los ntawm-cov khoom, nws yuav tsum tau ntxiv tshwj xeeb ua technology. Ib txhia tuam txhab uas muag sim los ua ke no yeeb tshuaj, tab sis xws lawm yog kim heev thiab nws tsis yog haum rau loj ntau lawm.

Cov mis ntawm sodium formate - HCOONa. Vim qhov no cov ntaub ntawv uas muaj formic acid uas yog zoo heev protivolednym reagent nws yog feem ntau siv raws li tus dej ntsuab.

Thaj chaw ntawm sodium formate

Manufactured kev sodium formate yog siv nyob rau hauv ob peb lub lag luam. Nws thoob plaws siv vim lub zog. Qhov no tshuaj yog heev soluble nyob rau hauv cov dej. Nws yog ib nyuag soluble nyob rau hauv cawv thiab insoluble nyob rau hauv ether. Sodium formate yog tsis illuminated thiab tag nrho tawg-pov thawj. Dua li no, nyob rau hauv lub qhov chaw ntawm cia thiab daim ntawv thov yuav tsis siv ib qho qhib nplaim taws thiab haus luam yeeb yog txwv tsis pub.

Cov cheeb tsam ntawm daim ntawv thov ntawm cov tshuaj

Nws yog siv raws li ib tug dej ntsuab additive nyob rau hauv qhuav ntawm ib tug ntau yam ntawm lub tsev lug. Nws kuj yog siv nyob rau hauv lub tanning kev lag luam. Nws yog siv nyob rau hauv ntau yam preddubilnyh hauj lwm.

Lub sodium formate li raw khoom yog indispensable nyob rau hauv qhuav ntawm tej tshuaj li formic acid. Nws kuj yog siv nyob rau hauv cov roj kev lag luam thiab raws li ib feem ntawm anti-icing agents.

Tej yam nyob rau hauv tib neeg lub cev

Sodium formate nyob rau hauv lawv cov degree ntawm tib neeg raug tus kab mob xa mus rau 4 chav kawm ntawv ntawm teeb meem. Nws yuav ua rau muaj mob loj rau lub cev nyob rau hauv siab ntau. Sodium formate feem ntau ua rau voos rau txheej week thiab Upper pa ib ntsuj av. Nyob rau hauv kev ua hauj lwm nrog rau qhov no tshuaj yuav tsum tau siv PPE: ncauj, lub tsho tshaj sab, hnab looj tes. Nyob rau hauv cov ntaub ntawv ntawm cov kev huam yuaj nrog qhov kev tso tawm ntawm loj nyiaj ntawm sodium formate yog yuav tsum tau siv ib tug roj daim npog qhov ncauj. Rau cia ntawm qhuav tshuaj nruab cais warehouses, qhov twg nws yog muab cia rau hauv lub hnab tshwj xeeb pallets.

Sodium formate - dej ntsuab

Nyob rau hauv tas li ntawd mus siv nyob rau hauv kev lag luam thiab kev tsim kho, qhov no yam khoom uas yog muaj kev koom siv raws li ib tug dej ntsuab neeg sawv cev nrog sparing nyhuv. Nws, tsis zoo li lwm cov hom ntawm anti-icing agents, tsis muaj ib tug catastrophic tej yam rau cov ib puag ncig. Nyob rau hauv tas li ntawd, los ntawm nws tsis yog ib yam nkaus thiab cuam tshuam hlau qhov chaw ntawm lub cev muaj zog tsheb. Nws dawb thiab yuav siv tau rau cov kev kho mob ntawm tus txiv neej-ua lug ntawm txoj kev chaw raws li ib tug xeb inhibitor.

Sodium formate siv cov kev faib

Qhov no tshuaj yog indispensable rau qhov kev siv ntawm monolithic qhob thiab ua kev reinforced lug nyob rau hauv ib tug txias rau lub caij. Ntxiv mus, nws yog pom zoo kom siv nws txawm tias thaum huab cua sov - 5 ° C. Nws kuj yog siv nyob rau hauv qhuav ntawm monoliths nyob rau hauv precast lug rau kev sib khi cov pob qij txha, rau precast qhob khoom. Sodium formate yog nkag tau rau hauv lub pob zeb sib tov nyob rau hauv cov nram no proportions:

• 2% los ntawm qhov hnyav ntawm MAAs siv nyob rau hauv cov nqe lus ntawm qhuav tshuaj yog tawv ntawm ib tug kub ntawm txog rau -5 ° C (ntau npaum ntawm 8 kg / L 7);

• 3% - mus -10 ° C (12 kg / 10.5 L);

• 4% - mus -15 ° C (16 kg / 14 L).

Thaum lub sij hawm npaj ntawm qhob nrog sodium formate yaj nyob rau hauv dej sov. Nyob rau hauv cov ntaub ntawv no muaj ib tug tshwj xeeb kev pom zoo rau nws cov tshuaj no. Yog li ntawd, nws yog ntxiv ua ke nrog rau cov nws cov dej los ntawm ib tug tshwj xeeb dispenser tshuaj additives. Koj kuj siv tau cov dej dispenser. Nyob rau hauv lub caij nyoog kawg no cov ntaub ntawv, cov mixing yog tsim nyog los txo nws noj los ntawm 8-13%. Vim lub sodium formate yog ib qho acceleration ntawm qhob hardening, uas yog tshwj xeeb tshaj yog yam nyob rau hauv kev tsim kho ntawm high-sawv vaj tse.

precautionary ntsuas

Qhov no cov ntaub ntawv uas yuav siv tsis tau nyob rau hauv pre-nyuab siab Siv, qhov twg steel siv rau reinforcing cov chav kawm AT-VI, AT-IV, A-V. Tsis tas li ntawd, nws tsis yog haum rau ua vaj tse thiab pob zeb ua khoom uas hais tias yuav tsum siv nyob rau hauv roj thiab dej kev kawm nrog av noo ntau dua li 60% thiab nyob rau hauv Siv tsim kom muaj qhauj thiab electrified thauj, qhov twg DC siv.

Thaum uas siv cov khoom siv no yuav tsum tau nco ntsoov hais tias hais tias nws yog tseem tsis "gostirovano" raws li dej ntsuab, thiaj li tsuas siv cov ntaub ntawv hais txog nws, uas yog nyob rau hauv cov pej xeem sau thiab "pom zoo nyob rau kev siv ntawm sodium formate kev". Cov yav tas twb pom zoo los ntawm cov kws muaj txuj pawg neeg ntawm scientific thiab cov kev NIISK Council. Muaj ntau manufacturers ntawm cov tshuaj tso tawm los ntawm nws cov kev specifications (TU). Rau hnub tim, qhov muag ntawm cov khoom nyob rau hauv Tuam Tshoj, nws yog tsis yooj yim sua kom paub tseeb tias qhov zoo yog cia li raws li feem ntau nws tsis txawm muaj rau daim ntawv pov. Uas yog vim li cas nws yog zoo dua yuav khoom los ntawm txhim khu kev qha domestic producers.