Acid phosphoric | 7664-38-2
Nkọwa ngwaahịa
Acid phosphorous dị na mmiri na-enweghị agba, transperent na siropy ma ọ bụ rhombic crystalline, phosphorus acid enweghị isi ma na-atọ ụtọ nke ukwuu; ebe agbaze ya bụ 42.35 ℃ na mgbe ọkụ na 300 ℃ phosphorous acid ga-aghọ metaphosphoric acid; Njupụta ya bụ 1.834 g / cm3; phosphoric acid na-adị mfe soluble na mmiri ma dozie na ethanol; Phosphate acid nwere ike kpasuo akpụkpọ ahụ mmadụ ka ọ kpatara phlogosis ma bibie okwu ahụ nke ahụ mmadụ; phosphorus acid na-egosi nrụrụ na-ekpo ọkụ na arịa seramiiki; phosphate acid nwere hydroscopicity.
A na-eji phosporic acid mee ihe:
Enwere ike iji ọkwa nkà na ụzụ phosphoric acid mepụta ụdị phosphates dị iche iche, mmiri ọgwụ electrolyte ma ọ bụ mmiri ọgwụgwọ kemịkalụ, ngwa agha nwere phosphoric acid na inorganic coheretant. A na-ejikwa phosporic acid dị ka ihe na-akpali akpali, onye na-ehicha ihe na onye na-ehicha ihe. Na mkpuchi ụlọ ọrụ phosphoric acid a na-eji dị ka ihe mkpuchi nchara maka ọla; Dị ka a acidity regulator na oriri na-edozi gị n'ụlọnga maka yiast nri ọkwa phosphoric acid nwere ike tinye na flavors, mkpọ nri na ìhè ọṅụṅụ nakwa dị ka a na-eji na wine ebe a na-eme biya dị ka nri isi iyi maka yist iji gbochie mmepụta nke nje bacteria na-abaghị uru.
Nyocha kemịkalụ
| Isi ọdịnaya-H3PO4 | ≥85.0% | 85.3% |
| H3PO3 | ≤0.012% | 0.012% |
| Ọla dị arọ (Pb) | 5ppm kacha | 5 ppm |
| Arsenic (As) | 3ppm kacha | 3 ppm |
| Fluoride (F) | 10ppm max | 3ppm |
| Usoro ule: | GB/T1282-1996 | |
Ngwa
A na-eji phosphoric acid na-ewepụ uzuzu n'elu igwe a na-eji dị ka nchara nchara site na-ebute ya na kọntaktị kpọmkwem na ígwè nchara, ma ọ bụ ngwá ọrụ ígwè na ihe ndị ọzọ nchara. Ọ na-enye aka ihicha ihe ndị dị na ịnweta, cement nous smears na mmiri siri ike. A na-eji acidify ihe oriri na ihe ọṅụṅụ dị ka colas. Phosphoric acid bụ ihe dị mkpa n'ime ọgwụ ndị a na-ere ahịa iji lụso ọgbụgbọ ọgụ. A na-agwakọta phosphoric acid na ntụ ntụ zinc ma mepụta zinc phosphate, ọ bara uru na ciment eze nwa oge. Na orthodontics, a na-eji zinc dị ka ihe ngwọta etching iji nyere aka ihicha ma mee ka elu ezé dị njọ. A na-eji fatịlaịza mmeghachi omume n'ime ala gburugburu granule acidification nke na-eme ka ojiji nke phosphorus tinye n'ọrụ ma dị na rhizosphere. N'ihi ọdịnaya nitrogen ya (nke dị ugbu a dị ka amonia), ọ dị mma maka ihe ọkụkụ na-achọ nri ndị a n'oge mbụ ya.
Nkọwapụta
| Nkọwapụta | Ọkwa ụlọ ọrụ phosphoric acid | Ọkwa nri phosphoric acid |
| Ọdịdị | Mmiri na-enweghị ụcha, mmiri mmiri na-egbuke egbuke ma ọ bụ na agba dị obere | |
| Agba ≤ | 30 | 20 |
| Nyocha (dị ka H3PO4)% ≥ | 85.0 | 85.0 |
| Chloride (dị ka Cl-)% ≤ | 0,0005 | 0,0005 |
| Sulfats (asSO42-)% ≤ | 0,005 | 0,003 |
| Ígwè (Fe)% ≤ | 0,002 | 0.001 |
| Arsenic (As)% ≤ | 0,005 | 0,0001 |
| Ọla dị arọ, dị ka Pb% ≤ | 0.001 | 0.001 |
| Ihe nwere ike oxide (asH3PO4)% ≤ | 0.012 | no |
| Fluoride, dị ka F% ≤ | 0.001 | no |
