HEDP
1-Hydroxyethane-(1,1-di-phosphonic acid)

Product information- liquid products

CUBLEN	K 60	K 3014	K 2012	K 4023	K 2222
Chem. Identity	acid	Na4-salt	Na2-salt	K3-salt	K2-salt
Abbreviation	HEDP	Na4HEDP	Na2HEDP	K3HEDP	K2HEDP
CAS-No. EINECS-No.	2809-21-4 220-552-8	3794-83-0 223-267-7	7414-83-7 231-025-7	60376-08-1 262-203-2	21089-06-5 244-210-2
Appearance	colorless to yellowish clear liquid
Active substance (calculated as acid)	60 %	20 %	16,5 %	26 %	15 %
Active substance (calculated as salt)	-	30 %	20 %	40 %	22 %
Density [g/cm³] @ 20°C	1.45	1.30	1.17	1.35	1.17
pH (1%) @ 20°C	1 - 2	11 - 12	4 - 6	7 - 9	5 - 7

CUBLEN	K 8514 GR	K 8514 GP	K 9012 GR
Chem. Identity	Na4-salt	Na4-salt	Na2-salt
Abbreviation	Na4HEDP	Na4HEDP	Na2HEDP
CAS-No. EINECS-No.	3794-83-0 223-267-7	3794-83-0 223-267-7	7414-83-7 231-025-7
Appearance	white granules	white fine granules	white granules
Active substance (calculated as acid)	62 %	62 %	78 %
Active substance (calculated as salt)	88 %	88 %	95 %
bulk density (g/cm³)	0.9	0.9	1.0
pH (1%) @ 20°C	11 - 12	11 - 12	5 - 7
Main Particle Size[µm]	600	250	600
Particle Size < 45µm [%]	0	0.5	< 0.5
Hygroscopicity	very low

Functional properties
Inhibition of CaCO3 precipitation	excellent
Inhibition of CaSO4 precipitation	satisfactory
Sequestration of metal ions	very good
Corrosion inhibition on unalloyed steel	very good