1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) HEDP 90% pauka/ HEDP 60% wai
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
CAS Helu 2809-21-4
Formula Molekala: C2H8KA7P2
Kaumaha molekole: 206.02
Papa: 60% wai; 90% pauka
HEDP he mea hoʻopau i ka palaho o ka waikawa organophosphoric. Hiki iā ia ke chelate me nā ion Fe, Cu, a me Zn e hana i nā hui chelating paʻa. Hiki iā ia ke hoʻoheheʻe i nā mea i hoʻopau ʻia ma luna o nā ʻili o kēia mau metala. HEDP hōʻike i ka unahi maikaʻi loa a me nā hopena pale ʻana i ka pala ma lalo o ka mahana 250 ℃. HEDP He kūpaʻa kemika maikaʻi kona ma lalo o ka waiwai pH kiʻekiʻe, paʻakikī ke hydrolyzed, a paʻakikī ke decompose ma lalo o nā kūlana mālamalama a me ka wela maʻamau. ʻOi aku ka maikaʻi o kona hoʻomanawanui ʻana i ka waikawa/alkali a me ka chlorine oxidation ma mua o nā waikawa organophosphoric ʻē aʻe (paʻakai). HEDP hiki ke hana me nā ion metala i loko o ka ʻōnaehana wai e hana i ka paʻakikī hexa-element chelating, me ka ion calcium ma ke ʻano kūikawā. No laila, HEDP he hopena antiscale maikaʻi a me nā hopena paepae ʻike ʻia. Ke kūkulu ʻia pū me nā kemika mālama wai ʻē aʻe, hōʻike ia i nā hopena synergistic maikaʻi. ʻO ke kūlana paʻa o HEDP he pauka kristal, kūpono no ka hoʻohana ʻana i ka hoʻoilo a me nā ʻāpana hau. Ma muli o kona maʻemaʻe kiʻekiʻe, hiki ke hoʻohana ʻia ma ke ʻano he mea hoʻomaʻemaʻe i nā kahua uila a me nā mea hoʻohui i nā kemika o kēlā me kēia lā.
HEDP hoʻohana ʻia e like me ke unahi a me ka pale ʻana i ka palaho i loko o ka ʻōnaehana wai anuanu e kaapuni ana, ke kahua aila a me nā paila haʻahaʻa haʻahaʻa i nā kahua e like me ka mana uila, ka ʻoihana kemika, metallurgy, fertilizer, etc.. I ka ʻoihana ulana māmā, HEDP hoʻohana ʻia ia ma ke ʻano he mea holoi no ka metala a me ka mea ʻole metala. I ka ʻoihana hoʻoluʻu ʻana, HEDP hoʻohana ʻia ma ke ʻano he mea hoʻopaʻa peroxide a me ka mea hoʻopaʻa dye; I ka electroplating non-cyanide, HEDP hoʻohana ʻia ma ke ʻano he mea chelating. ʻOi aku ka makemake ʻia o ka nui o 1-10mg/L ma ke ʻano he mea hoʻopale unahi, 10-50mg/L ma ke ʻano he mea hoʻopale pala, a me 1000-2000mg/L ma ke ʻano he mea holoi. ʻO ka maʻamau, HEDP Hoʻohana ʻia ka waikawa polycarboxylic me ka hui pū ʻana.
| Nā Mea | Papa Kuhikuhi | |
|---|---|---|
| helehelena | He wai moakāka, ʻaʻohe kala a i ʻole melemele māmā | Pauka aniani keʻokeʻo |
| ʻIke hana (HEDP)% | 58.0-62.0 | 90.0 minuke |
| ʻIke hana (HEDP·H2KA)% | - | 98.0 minuke |
| ʻAkika phosphorous (e like me PO33-)% | 2.0 kiʻekiʻe loa | 0.8 kiʻekiʻe |
| ʻAkika phosphoric (e like me PO43-)% | 0.8 kiʻekiʻe | 0.5 ka nui loa |
| Chloride (e like me Cl-)% | 0.02 kiʻekiʻe | 0.01 ka palena kiʻekiʻe |
| pH (1% wai hoʻonā) | 2.0 kiʻekiʻe loa | 2.0 kiʻekiʻe loa |
| Ka nui (20 ℃)g/cm3 | 1.40 minuke | - |
| Fe, mg/L | 20.0 ka palena kiʻekiʻe | 10.0 kiʻekiʻe loa |
| Ka hoʻokaʻawale ʻana o Ca (mg CaCO3/g) | 500.0 minuke | - |
Wai HEDP: pahu palaki 200L, IBC (1000L), koi o nā mea kūʻai aku.
HEDP paʻa: 25kg/ʻeke, koi o nā mea kūʻai aku.
E mālama i kahi maloʻo a maloʻo no nā mahina he ʻumikumamālua.
