PBTC (2-Phosphonobutane-1, 2, 4-Tricarboxylic Acid)

PBTC: Appearance: Cloroless liquid,
Active content: 49% - 51%
Iron: 10 ppm max
Ph (1% ): 2 max
Density: 1.27 min
PBTC

CAS No. 37971-36-1
Molecular Formula: C
7
H
11
O
9
P Molecular weight: 270.13

Properties:

PBTCA or PBTC has low content of phosphoric,
has structural features of both phosphoric acid and carboxylic acid group,
which enable its excellent scale and corrosion inhibition properties.
Its antiscale property under high temperature is far better
than that of organophosphines.
It can improve zinc salt solubility,
has good chlorine oxidation tolerance and good composite synergy.

Specification:
TEST ITEMS
STANDARD
RESULT
Appearance
Colorless or
Light yellow transparent liquid.
Clear colourless liquid
Active content
50.0 min.
50.06
Organophosphate content

17%-19%
17.6
Phosphorous Acid(as PO
3
3-
);%
0.5 Max.
0.12
Phosphoric Acid(as PO
4
3-
);%
0.2 Max.
0.06
Density(20°C);g/cm
3
1.27 Min.
1.29
PH

Value(1% water solution)
1.5-2.0
1.9
Chloride(Cl);ppm

10 Max.
3.0
Chelation
330mgCa/g Ph11
364
Iron(Fe);ppm
10 Max.
3.0

Usage:

PTBCA is a high efficient agent as scale and corrosion inhibitor.
It is the excellent stabilizer for zinc salt.
It is widely used in circulating cool water system and oilfield refill water system
as scale and corrosion inhibitor,
suitable to composite with zinc salt and copolymer.
It can be used in situations of high temperature,
high hardness, high alkali and high concentration index. In lavation fields,
it is used as chelating agent and metal detergent.
PBTCA is usually used together with zinc salt, copolymer, organophosphine,
imidazole and other Water Treatment Chemicals.
When used alone, the dosage of 5-15mg/L is preferred.

Package and Storage:

Normally In 250kg net Plastic Drum, IBC drum, ISo-tank can also be used as required.
Storage for one year in room shady and dry place.

Safety Protection:

Acidity, Avoid contact with eye and skin, once contacted, flush with water.