Acid phosphorousApapọ inorganic pẹlu agbekalẹ kemikali H3PO3.O jẹ lulú kristali funfun kan, ni irọrun tiotuka ninu omi ati ethanol, ati laiyara oxidized sinu orthophosphate ni afẹfẹ.Phosphite jẹ acid dibasic, acidity rẹ ni okun diẹ sii ju phosphoric acid, o ni agbara idinku ohun-ini, rọrun lati dinku awọn ions fadaka (Ag +) si irin fadaka (Ag), le dinku sulfuric acid si sulfur dioxide.O ni o ni lagbara hygroscopicity ati deliviousness, ati ki o jẹ ipata.Phosphite jẹ lilo akọkọ bi aṣoju idinku, aṣoju didan ọra, ṣugbọn tun lo bi awọn ohun elo aise phosphite, awọn agbedemeji ipakokoropaeku ati awọn aṣoju itọju omi irawọ owurọ Organic awọn ohun elo aise.
Awọn ohun-ini:funfun kirisita lulú.Tiotuka ninu omi ati oti.Iwọn iwuwo: 1.651g / cm3, yo ojuami: 73 ℃, farabale ojuami: 200 ℃.
ÌWÉ:
1.Phosphorous acidti wa ni lo lati gbe awọn ajile fosifeti iyọ bi potasiomu phosphite, ammonium phosphite ati kalisiomu phosphite.O ti wa ni actively lowo ninu igbaradi ti phosphites bi aminotris (methylenephosphonic acid) (ATMP), 1-hydroxyethane 1,1-diphosphonic acid (HEDP) ati 2-phosphonobutane-1,2,4-tricarboxylic Acid (PBTC), eyi ti o ri. ohun elo ni itọju omi bi iwọn tabi inhibitor corrosive.O tun lo ninu awọn aati kemikali bi oluranlowo idinku.Iyọ rẹ, phosphite asiwaju ni a lo bi imuduro PVC.O tun lo bi iṣaju ni igbaradi ti phosphine ati bi agbedemeji ni igbaradi ti awọn agbo ogun irawọ owurọ miiran.
2.Phosphorous acid(H3PO3, orthophosphorous acid) le ṣee lo bi ọkan ninu awọn paati ifaseyin fun iṣelọpọ ti atẹle:
α-aminomethylphosphonic acids nipasẹ Mannich-Iru Multicomponent Reaction
1-aminoalkanephosphonic acids nipasẹ amidoalkylation atẹle nipa hydrolysis
N-idaabobo α-aminophosphonic acids (phospho-isosteres ti awọn amino acids adayeba) nipasẹ esi amidoalkylation
3. Awọn lilo ile-iṣẹ: A ti ṣe agbero-odè yii laipẹ ati pe a lo ni akọkọ bi olugba kan pato fun cassiterite lati awọn ores pẹlu akopọ gangue eka. Lori ipilẹ ti phosphonic acid, Albright ati Wilson ti ni idagbasoke ọpọlọpọ awọn agbowọde ni pataki fun flotation ti awọn ohun alumọni oxidic ( ie cassiterite, ilmenite ati pyrochlore).Pupọ diẹ ni a mọ nipa iṣẹ ti awọn agbowọ wọnyi.Awọn ijinlẹ ti o lopin ti a ṣe pẹlu cassiterite ati awọn ores rutile fihan pe diẹ ninu awọn agbowọ wọnyi ṣe agbejade froth voluminous ṣugbọn wọn yan pupọ.
Ọna iṣelọpọ:
Awọn ọna iṣelọpọ ile-iṣẹ pẹlu irawọ owurọ trichloroic ati iyọ phosphoric acid.Ọna hydrolysis laiyara ṣafikun omi si iṣesi hydrolysis labẹ idapọ ti trichloride lati ṣe ipilẹṣẹ sub-phosphoric acid.Lẹhin isọdọtun, Iwe-kemikali tutu, awọn crystallization ati discoloration ti wa ni ṣe, ati awọn ti pari ọja ti wa ni ṣe.PCI3+3H2O → H3PO3+3HCL ṣe agbejade atunlo hydrogen kiloraidi lakoko ilana iṣelọpọ, eyiti o le ṣe sinu hydrochloric acid.
Aabo:
Flammability ewu abuda: ni H iho oluranlowo combustible;Ooru decomposes majele ti irawọ owurọ oxide.
Ibi ipamọ ati awọn abuda gbigbe: fentilesonu ile itaja ni iwọn otutu kekere gbẹ;Tọju lọtọ lati H pore-tusilẹ oluranlowo ati alkali.
Iṣakojọpọ: 25kg / apo
Ibi ipamọ: Fipamọ ni pipade daradara, sooro ina, ati aabo lati ọrinrin.
Akoko ifiweranṣẹ: Kínní-27-2023