HEDP in the industrial circulatory systa pickling process, show the
effect of rust raoval, has been a subject of our research, the
following talk about the effect of HEDP in pickling rust raoval:
1,
HEDP full name is 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, which can form
stable complexes with iron, copper, aluminium, zinc and other metal
ions, can dissolve metal surface oxides. Learned chaistry should know,
rust is caused by metal surface oxidation, so hedp can be raoved.
2,
HEDP chelating rust effect by the taperature, the concentration of the
influence of the more obvious, it will be in the initial 2h within the
dissolution of rust faster, time to continue to extend the speed of
dissolution of rust slows down significantly. This shows that the
unlimited extension of time has little effect on the rust dissolving
effect of HEDP. Compared with the mass fraction of 5% of hydrochloric
acid, the mass fraction of 1% of HEDP although the speed of dissolving
rust is lower, but in the industrial field construction HEDP has many
advantages that hydrochloric acid can not be compared, so in many cases,
HEDP can still be used as an acid cleaning agent.
3, HEDP and
other corrosion inhibitors have good compounding effect, after
compounding its rust raoval effect is not affected, therefore, such
corrosion inhibitors can be used as HEDP pickling solution ideal rust
inhibitor. In order to have a more in-depth understanding of the rust
dissolving effect when HEDP is used as pickling agent, and to minimise
the various hazards caused by corrosion in the pickling process.
4,
experts through the use of weightlessness method to study the
performance of HEDP dissolve rust, and with the rotating hanging piece
of weightlessness method on the commonly used pickling corrosion
inhibitor in the HEDP in the corrosion inhibition effect of the study,
and on this basis on the HEDP of the dissolution of the rust mechanism
of the preliminary discussions, so as to provide a basis for the
application of HEDP in the pickling of the central air-conditioning. The
above introduction of HEDP production process, rust raoval process and
effect, the advantages of copper plating and the key, and the most
basic information, you should have a deeper understanding of HEDP, but
for the use of the use or after the expert's advice to use, can not be
added on their own, and the dose of the control should be grasped before
you can.
HEDP Technical Specification
The above HEDP
specifications are from: HEDP professional manufacturer Kerry Chaical
Co., Ltd, need to know more about HEDP related information may be
through the following way to contact Kerry Chaical:
Shandong Kairui Chemistry Co.,Ltd.
Contact: Kobe Huang (VP of Sales)
Aaron Lee (Export Manager)
TEL: +86-632-3671188
FAX: +86-632-3671189
E-mail: export@krchemical.com
Website: krwater.com | krwater.net | kairuiwater.com
ADD: No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China