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1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)

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1111
22222
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)

Nomer CAS 2809-21-4





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Nomer CAS 2809-21-4

Formula Molekul: C2H8O7P2                Bobot molekul: 206.02

Formula Struktural:

                             

Properti:

HEDP minangka inhibitor korosi asam organofosfat. Bisa chelate karo ion Fe, Cu, lan Zn kanggo mbentuk senyawa chelating stabil. Bisa dissolve bahan oxidized ing lumahing logam iki '. HEDP nuduhake skala lan efek pencegahan korosi sing apik ing suhu 250 ℃. HEDP nduweni stabilitas kimia sing apik ing pH dhuwur, angel dihidrolisis, lan angel diurai ing kahanan cahya lan panas biasa. Toleransi oksidasi asam/alkali lan klorin luwih apik tinimbang asam organofosfat liyane (uyah). HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.

Negara padhet saka HEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals. 

Spesifikasi:

                     

barang

Indeks

Penampilan

Larutan banyu bening, ora ana warna nganti kuning pucet

Bubuk kristal putih

Konten Aktif (HEDP),%

58-62

90,0 min

Konten aktif (HEDP·H2O),%

-

98,0 min

Asam fosfat (minangka PO33-), %

2.0 maks

0,8 maks

Asam fosfat (minangka PO43-), %

0,8 maks

0,5 maks

Klorida (minangka Cl-)%

0,02 maks

0,01 maks

pH (larutan banyu 1%)

2.0 maks

2.0 maks

Kapadhetan (20 ℃), g / cm3

1.40 min

-

Fe, mg/L

20.0 maks

10.0 maks

Warna APHA (Hazen)

40,0 maks

-

Sekuestrasi Ca (mg CaCO3/g)

500,0 min

 

Dianggo:

HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.

Packaging lan panyimpenan:

HEDP liquid: 200L plastic drum,IBC(1000L),customers’ requirement.

HEDP solid: 25kg/bag,customers’ requirement.

Panyimpenan rolas sasi ing kamar sing teduh lan garing.

Keamanan lan perlindungan:

HEDP iku asam. Pay manungsa waé kanggo pangayoman pegawe sak operasi. Aja kontak karo mata lan kulit. Yen cipratan ing awak, langsung mbilas nganggo banyu sing akeh.

sinonim:

HEDP;HEDP(A);HEDPA;

Etidronic Acid;

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid;

Hydroxyethylidene-1,1-diphosphonicacid(HEDP);

1-Hydroxyethylidenediphosphonic Acid;

Hydroxyethylidene Diphosphonic acid(HEDP);

1-Hydroxy-1,1-Ethanediyl ester;

Oxyethylidenediphosphonic Acid (OEDP)

Hydroxyethylidene diphosphonic acid (HEDP acid)

tembung kunci: HEDP
Produk sing gegandhengan:  1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

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