| Chemical Properties |
Ammonium fluoride (NH4F) yog dawb crystalline ntsev uas yog soluble hauv dej txias. Nws yog unstable thiab emits ib tug muaj zog tsw ntawm ammonia. Ammonium fluoride yog tsim thiab muag hauv cov khoom siv los yog hauv cov tshuaj aqueous. Nws daim ntawv thov muaj xws li iav etching, ntoo preservation, thiab ua ib tug mordant nyob rau hauv lub textile kev lag luam. |
| Lub cev muaj zog |
Dawb, deliquescent, crystalline khoom; tshwm sim nyob rau hauv ntau yam ntaub ntawv, raws li granular hmoov (cov khoom lag luam), koob los yog nplooj ntawv, los yog hexagonal prism (tsim ntawm sublimation thiab condensation); Qhov ceev 1.009 g / cm33ntawm 25 degree; decomposes ntawm cua sov; soluble hauv dej txias heev (100g/100g ntawm 0 degree); decomposes hauv dej kub; me ntsis soluble hauv cawv, insoluble hauv kua ammonia. |
| Siv |
Nws yog siv rau etching iav, preservation ntawm cov zaub mov, nyob rau hauv printing textile, thiab raws li mothproofing neeg sawv cev. Nws yog siv nyob rau hauv tshuaj ntsuam xyuas thiab nyob rau hauv brewing. Nws yog siv nyob rau hauv synthesis ntawm NaHoF4 thiab NaEuF4, uas yog ib qho tseem ceeb nyob rau hauv cov khoom lub xeev lasers thiab photoluminescence. Cov fluoride ion yog siv los ua lub hauv paus thiab nucleophile hauv cov organic synthesis. Ammonium fluoride muab kev tiv thaiv kev nyab xeeb rau pawg tert-butyldimethylsilyl (TBS) thaum lub sij hawm RNA synthesis. |
| Siv |
Ammonium fluoride yog ua hauj lwm nyob rau hauv ib tug tshiab hydrothermal synthesis ntawm complex flourides NaHoF4and NaEuF4Cov kev sib txuas nthuav dav no muaj cov qauv fluorite thiab yog qhov tseem ceeb rau cov khoom siv hauv lub xeev lasers nrog rau cov photoluminescence thiab cov yam ntxwv sib nqus.
Cov khoom siv los npaj Ce3F nanoparticles (NPs) uas tau txuas ntxiv rau photosensitizers nrog rau Au NPs los txhim kho singlet oxygen tiam hauv photosensitizers. |
| Kev npaj |
Anhydrous ammonium fluoride yog npaj los ntawm reacting anhydrous NH3 thiab HF los yog cua sov aqueous daws ntawm NH4F ntawm txo siab, thiaj li hais tias ib tug sib tov ntawm H2O thiab NH3 yog distilled. |
| Txhais |
ChEBI: Ammonium fluoride yog fluoride ntsev uas muaj ammonium (NH{0}}) raws li qhov kev tawm tsam. Nws yog ammonium ntsev thiab fluoride ntsev. |
| Kev piav qhia dav dav |
Ammonium fluoride yog dawb crystalline khoom. Nws yog soluble hauv dej. Nws yog noncombustible. Nws yog corrosive rau aluminium. Nws yog siv nyob rau hauv tshuaj ntsuam xyuas, nyob rau hauv brewing, thiab raws li ib tug preservative rau ntoo. |
| Cua & Dej Reactions |
Dissolve nyob rau hauv dej thiab cov ntaub ntawv dilute kua hydrofluoric acid. Tej zaum corrode iav, cement, thiab hlau feem ntau [USCG, 1999]. Dej soluble. |
| Reactivity Profile |
Cov ntsev, yooj yim, xws li Ammonium fluoride, feem ntau yog soluble hauv dej. Cov kev daws teeb meem muaj qhov nruab nrab ntawm cov hydroxide ions thiab muaj pH ntau dua 7.0. Lawv ua raws li cov hauv paus rau neutralize acids. Cov neutralizations ua kom sov, tab sis tsawg dua los yog tsawg dua yog tsim los ntawm neutralization ntawm lub hauv paus nyob rau hauv reactivity pawg 10 (Bases) thiab neutralization ntawm amines. Lawv feem ntau tsis hnov mob li oxidizing cov neeg ua haujlwm lossis txo cov neeg ua haujlwm tab sis cov cwj pwm zoo li no tsis yooj yim sua. |
| Hazard |
Corrosive rau cov ntaub so ntswg. |
| Health Hazard |
Kev nqus cov plua plav tuaj yeem ua rau khaus ntawm lub ntsws. Kev noj tshuaj tsis zoo; yooj yim soluble fluorides tuaj yeem ua rau tuag taus yog tias nqos tau me me. Kev sib cuag nrog ob lub qhov muag ua rau lub zos khaus ntawm cov mucous daim nyias nyias. Kev sib cuag nrog daim tawv nqaij yuav ua rau kub hnyiab. High concs. Cov tshuaj fluorine hauv cov zis tau tshaj tawm tom qab kev sib cuag ntawm daim tawv nqaij. |
| Kev ruaj ntseg Profile |
Tshuaj lom los ntawm subcutaneous thiab intraperitoneal txoj kev. Saib ntxiv FLUORIDES. Thaum rhuab mus rau decomposition nws tawm cov pa phem heev ntawm F-, NO, thiab NH3. Incompatible nrog ClF3 |
| Ntxim yuav nphav raug |
Ammonium fluoride yog siv rau hauv kev luam ntawv thiab dyeing textiles; iav etching, npauj-proofing thiab ntoo khaws cia; nyob rau hauv analytical chemistry, ua liaj ua teb, antiseptic nyob rau hauv brewing. |
| Kev xa khoom |
UN2505 Ammonium fluoride, Chav Kawm Hazard: 6.1; Cov ntawv lo: 6.1-Cov khoom muaj kuab lom. |
| Kev tsis sib haum xeeb |
Acids, alkalis, chlorine trifluoride. Corrodes iav, cement, feem ntau hlau. |
| Pov tseg pov tseg |
Tham nrog cov koom haum tswj hwm ib puag ncig rau kev taw qhia txog kev coj ua pov tseg. Lub tshuab hluav taws xob ntawm cov khoom pov tseg uas muaj cov kab mob no (Ntau dua lossis sib npaug li 100 kg / mo) yuav tsum ua raws li EPA cov cai tswj kev khaws cia, kev thauj mus los, kev kho, thiab kev pov tseg pov tseg. |
