NKC-910 (HEDP) Hydroxyethylidene Diphosphonic Acid

NKC-916 (Na4-HEDP) Sodium Hydroxyethylidene Diphosphonate

Quality indicators of NKC-910:                                             Quality indicators of NKC-916:

Molecular weight: 206                                                     Molecular weight: 294

Active substance content: 60 ± 2% (calculated as acid)                     Active substance content: 30 ± 2% (calculated as sodium salt) / 20 ± 2% (calculated as acid)

Appearance: Colorless - light yellow transparent liquid                     Appearance: Colorless - light yellow transparent liquid

pH (1% aqueous solution): < 2.0                                             pH (1% aqueous solution): 10 - 12

Density (at 20°C): 1.44 ± 0.05 g/cm³                                       Density (at 20°C): 1.30 ± 0.05 g/cm³

Iron ions: < 35 ppm                                                        Iron ions: < 35 ppm

Chloride ions: < 1%                                                         Chloride ions: < 1%

Uses: Scale and corrosion inhibitor for cooling water, boiler water and oilfield water; Scale inhibitor for seawater desalination and RO reverse osmosis water; Auxiliary dispersant for colorants in coatings; Metal ion chelating agent, dyeing and finishing process stabilizer and hydrogen peroxide stabilizer; Metal cleaner and cleaner for electroplating and ion exchange resin.

NKC-900 (ATMP) Aminotrimethylene Phosphonic Acid

NKC-906 (Na5-ATMP) Sodium Aminotrimethylene Phosphonate

Quality indicators of NKC-900:                                             Quality indicators of NKC-906:

Molecular weight: 299                                                     Molecular weight: 409

Active substance content: 50 ± 2% (calculated as acid)                     Active substance content: 40 ± 2% (calculated as sodium salt) / 29 ± 2% (calculated as acid)

Appearance: Colorless - light yellow transparent liquid                     Appearance: Colorless - light yellow transparent liquid

pH (1% aqueous solution): < 2.0                                             pH (1% aqueous solution): 10 - 11

Density (at 20°C): 1.30 ± 0.05 g/cm³                                       Density (at 20°C): 1.40 ± 0.05 g/cm³

Iron ions: < 35 ppm                                                        Iron ions: < 35 ppm

Chloride ions: < 1%                                                         Chloride ions: < 1%

Uses: Scale and corrosion inhibitor for cooling water, boiler water and oilfield water; Scale inhibitor for seawater desalination and RO reverse osmosis water; Cleaner; Used in bottle washing process to prevent scale and spots, etc.; In the textile process, as a hydrogen peroxide stabilizer to enhance the bleaching function.

NKC-953 (PAPEMP) Polyamino Polyether Methylene Phosphonic Acid

Quality indicators:

Active substance content ≥ 32%;

Appearance: Light yellow - yellow liquid;

pH (1% aqueous solution): 2.0 – 4.0;

Density (at 20°C): 1.24 ± 0.05 g/cm³;

Phosphite (PO₃³⁻) ≤ 4.0%;

Uses: Has excellent scale inhibition effect on serious scales such as calcium carbonate and calcium sulfate; Scale and corrosion inhibitor for cooling water and boiler water; Scale inhibitor for oilfield water treatment; Scale inhibitor for seawater desalination and RO reverse osmosis water; Metal chelating agent for cleaners.

NKC-956 (DTPMP) Diethylenetriaminepenta (methylene phosphonic acid)

NKC-959 (Na2-DTPMP) Sodium Diethylenetriaminepenta (methylene phosphonate)

Quality indicators of NKC-956:                                             Quality indicators of NKC-959:

Molecular weight: 573                                                     Molecular weight: 617

Active substance content: 50 ± 2% (calculated as acid)                     Active substance content: 55 ± 2% (calculated as sodium salt) / 50 ± 2% (calculated as acid)

Appearance: Dark brown liquid                                             Appearance: Brown transparent liquid

pH (1% aqueous solution): < 2.0                                             pH (1% aqueous solution): 2.0 - 3.0

Density (at 20°C): 1.36 - 1.42 g/cm³                                       Density (at 20°C): 1.38 - 1.45 g/cm³

Iron ions: < 35 ppm                                                        Iron ions: < 20 ppm

Chloride ions: 14% - 17%                                                   Chloride ions: < 4.5%

Uses: Scale and corrosion inhibitor for cooling water and oilfield water; Scale inhibitor for seawater desalination and RO reverse osmosis water; Scale inhibitor for boiler water; Metal ion chelating agent, dyeing and finishing process stabilizer and hydrogen peroxide stabilizer; Metal cleaner.

NKC-960 (PBTC) 2-Phosphonobutane-1,2,4-tricarboxylic acid

Quality indicators:

Molecular weight: 270;

Active substance content: 50 ± 2%;

Appearance: Colorless - light yellow transparent liquid;

pH (1% aqueous solution): < 2.0;

Density (at 20°C): 1.25 - 1.30 g/cm³;

Freezing point: Approximately -16°C;

Iron ions < 35 ppm;

Uses: Low-phosphate type scale and corrosion inhibitor for cooling water and boiler water; Scale inhibitor for oilfield water treatment; Scale inhibitor for seawater desalination; Cleaner and metal chelating agent.

NKC-975 (K6HDTMP) Hexamethylenediamine Tetramethylene Phosphonic Acid Hexapotassium Salt

Quality indicators:

Molecular weight: 721

Active substance content: 31 - 36% (calculated as potassium salt) / 21.0 – 24.6% (calculated as acid);

Appearance: Colorless - light yellow transparent liquid;

pH (1% aqueous solution): 6.0 – 8.0;

Density (at 20°C): 1.26 ± 0.05 g/cm³;

Chloride ions < 4.0%;

Iron ions < 35 ppm;

Uses: Scale and corrosion inhibitor for cooling water and boiler water; Scale inhibitor for oilfield water treatment; Scale inhibitor for RO reverse osmosis water; Cleaner and metal chelating agent.