ʻO ka paʻakai (1-Hydroxyethylidene)bis-phosphonic acid tetrasodium HEDP 4Na CAS 3794-83-0

CAS:3794-83-0

ʻAno:Pauka keʻokeʻo/Wai kala ʻole

Formula Molekala:C2H4Na4O7P2

Kaumaha molekole:293.96

Inoa ʻē aʻe:HEDP Na4, (1-Hydroxyethylidene)bis-phosphonic acid tetrasodium paʻakai

Waiho i kāu leka

Nā kikoʻī huahana

Hoʻoiho

Nā Lepili Huahana

He aha ka HEDP 4Na CAS 3794-83-0?

He wai mānoanoa melemele ʻeleʻele kēia huahana. ʻO ka nui o ka mānoanoa (ma 20℃) he 1.40. ʻO ke ʻano maʻemaʻe he 198-199℃ ka heheʻe a hiki ke hoʻoheheʻe ʻia i ka wai a me ka ethanol. He hygroscopicity ikaika ko ka huahana paʻa.

Nā kikoʻī

Mea	Nā kikoʻī
helehelena	Pauka keʻokeʻo
ʻIke Hana (ma ke ʻano he HEDP)%	56.0MIN
ʻIke Hana (e like me HEDP 4na)%	80MINU
Huina waikawa phosphoric (e like me PO43-)%	52MIN
PH (1% wai hoʻonā)	11~12
Hao ppm	20MAX
Ka pohō kaumaha maloʻo (Makū)%	15MAX

Mea	Nā kikoʻī
helehelena	Wai moakāka ʻole a melemele paha
ʻIke Hana (ma ke ʻano he HEDP)%	20.3-21.7
ʻIke Hana	29.0-31.0
pH	10.0- 12.0
Hao, ppm	20 ka nui loa
Ka nui o ka paʻa @20℃ , g/cm3	1.26- 1.36

Noi

Hiki ke hoʻohui ʻia me nā ʻano ion metala like ʻole.

Hoʻohana ʻia ma ke ʻano he mea pale unahi i ka wai hoʻoluʻu a me ka mālama ʻana i ka wai paila. Kū'ē wela maikaʻi. Loaʻa nō ka hopena maikaʻi ma 200℃.
Hiki ke hoʻohana ʻia e like me ka mea hoʻōki i ka corrosion, cyanide-free plating additive.