Technical data sheet

InoTec Pickling Bath Concentrate NR

Immersion and spray pickling liquid for stainless steel surfaces (nitrate-free)

Field of application

Pickling liquid for immersion and spray pickling of stainless steel surfaces and welding seams in one operation.
The product is nitrate-free, no development of nitrous gases.
A clean metallic surface in the application area is obtained.


Mix the product at a 1:1 ratio (according to weight) with water in an acid-proof pickling basin.
The parts that are to be pickled are immersed or sprinkled via spray nozzles.
welding seams and heat-affected zones must be allowed to cool down before using the product.
Surfaces must be free from grease and organic contamination.
If necessary, use InoTec Surface Cleaner P or InoTec Degreaser ES before the pickling process.

Read the packing label before use and follow the instructions.


If reactivation of the bath is carried out on a regular basis,
the product can be used up to a metal content of 90 g/l bath content.

Residence time

45– 150 minutes
Dependent on the material quality, welding process, component and ambient temperature.
Optimal pickling temperature: 18°C – 22°C.


Cold high pressure water (min. 140 bar).
Rinse until rinsing water is neutral (to be checked with indicator paper).

Subsequent treatment

InoTec Passivation Agent PV for immediate development of the passive layer.


The product and the rinsing water must not be lead into the sewage system.
The product and the rinsing water must be disposed of according to legal requirements (hazardous waste).
Treatment in neutralisation plant or disposal by an authorised company is mandatory.
Local statutory regulations must be followed.

Safety advice

The product contains hydrofluoric acid and nitric acid (C, corrosive, T+, very toxic).
Follow safety advice and instructions from EC safety data sheet.

Declaration for transport

Corrosive liquid, toxic. not noted otherwise.
UN-No. 2922, class 8 (6.1) / PG II. ADR/RID

Packing units

Canister 10 kg Item-No.: 79-998-15

Canister 30 kg Item-No.: 79-998-18

Barrel 200 kg Item-No.: 79-998-19

IBC 1000 kg Item-No.: 79-998-20


Caree-Chemie GmbH, Hüttenstrasse 31, D-52355 Düren
Tel.: +49 (0) 24 21 - 225 93 - 50, Fax: +49 (0) 24 21 - 225 93 - 55, e-mail: