Passivation Liquid RX

Part No: RXSOL-20-2401-210

RXSOL PASSIVATION is highly conc and acidic product , It does not give Black or Yellow stain marks after washing with water. It simultaneously removes annealing colours, ferritic contamination & weld burns.

Category

RXSOL PASSIVATION is highly conc and acidic product ,  It does not give Black or Yellow stain marks after washing with water. It simultaneously removes annealing colours, ferritic contamination & weld burns.
Spray is very safe & easy to use for cleaning of large equipments like S.S. vessels, dryers, agitators, dairy machinery, fermentators, internals as well as externals of pipes by pressurised spray bottle or pump. passivation process improve the corrosion resistance of metal parts / surface.

Concentrated up to 20% dilution materials are suitable for use only on stainless steel. While diluted more then 50% is suitable for cleaning aluminum.

Chlorides: are present in many cleaning agents. This entails risk of pitting corrosion of stainless steel. If a cleaner containing chlorine, chlorides, bleaches orhypochlorites is used it must be afterwards promptly and thoroughly cleaned off.

OTHER SUITABLE PRODUCT ::: For VERTICAL surface area.

Passivating Pickling Paste   :::  RXSOL-68-6801-005

Application

It is used to clean weld seams and surrounding areas with brush. It is used to remove heavy scales, discolouration, annealing colours, rust particles near weld and welding affected area by heat.

Circulation method : For closed system like PIPE , use concentrated materials atleast for 1-2 Hrs . Then FLUSH the system with TECHNICAL GRADE OF DI-WATER ( which is free from , all SOLUBLE IMPURITIES )

Spray Method : For TANK PASSIVATION , this is very effective method . After dilution 10 - 20% Directly spray on wall of TANKS atleast for 10-15 Minutes , then wash the system with cupious amout of fresh water , finally use TECH GRADE DI water for complete wash.

 

Procedure of Passivation

1. Isolate the exchanger and set up a circuit with an external tank with heating coil inside and a pump to circulate cleaning solution.

FLUSHING:-

2. Flush the Exchanger with fresh water to remove loose material (like dirt etc.) till such time clear water comes.

INHIBITED ACID CLEANING:-

3. Circulate inhibited Acid (5-6 % Citric Acid and 1% Rodine 213) along with non ionic wetting agent like RXSOL-T300  (RXSOL-20-T300-210 )   through Exchanger Loop for 6 to 8 hours

4. It total iron concentration reaches 5000 - 8000 PPM and concentration below 2% acid percentage then dump the cleaning solution and repeat the cycle with fresh inhibited acid.
5. Samples to be tested for pH, TDS and iron on hourly basis.
6. Normal operating temperature should be 50-60º C.
7. When iron concentration and acid concentration of solution reaches steady state and cleaning in completed. Drain the cleaning solution.

NEUTRALIZING:-

8. Circulate 1-2% solution of soda Ash for one to two for neutralization.
9. Rinse the neutralizing solution with water till pH of Inlet and Outlet is same.

PASSIVATION:-

10. Immediately fill and Circulate with 1-3% of solution of sodium Hexametaphosphate for 4-6 hours keeping operating temperature around 50-60º C. Analyze for Phosphate levels in Inlet and Outlet. (Normally maintain 30-40 PPM O-PO4 level)
11. Drain the passive solution without flushing with water.

DRYING:-

12. Dry the circuit with dry air/N2. 

Dose

For Pickling This is probably the most commonly used method. Use a solution of nitric and hydrofluoric acids in water. We use ASTM A380, solution D. The formula is specified in A380 as 6 - 25% HNO3 and ½ - 8% HF in water at 70 -140 F (21 - 60 C) for about 30 minutes. This is a strong cleaning solution and may etch highly finished surfaces.

 

Coverage / kg : Approx. 100 meters of weld seam.
 

Passivation Treatments

• Grades with at least 16% chromium (except free machining grade such as 303):

20-50% nitric acid, at room temperature to 40oC for 30-60 minutes.

• Grades with less than 16% chromium (except free machining grades such as 416):

20-50% nitric acid, at room temperature to 40oC for 60 minutes.

• Free machining grades such as 303, 416 and 430F:

20-50% nitric acid + 2-6% sodium dichromate, at room temperature to 50oC for 25 40 minutes

Technical specifications
 
PROBLEM CLEARING AGENT COMMENTS
Rust and other corrosion products. Embedded or adhering "free iron Very light rust stain can be removed by 10% nitric acid. More significant rust or embedded iron will require picking. See also previous sections on Passivating and Picking. Sand or glass-bead blasting is another option Wear PPE as appropriate. Afterwards rinse well with clean water. Mix in acid-proof container, and be very careful with the acid, (See Precautions for acid cleaners)
Routine cleaning of boat fittings. Frequent washing down with fresh water. Recommended after each time the boat is used in salt water.
Cooking pot boiled dry. Remove burnt food by soaking in hot water with detergent, baking soda or amonia. Afterwards clean and polish. with a mild abrasive if necessary. See comments re steel wool.
Dark oxide from welding or heat treatment. "Picking Paste" or picking solutions given on previous page. Must be careful rinsed, and use care in handling (see Precautions for acid cleaners).
Scratches on polished (satin or brushed) finish. Slight scratches - use impregnated nylon pads. Polish with polishing wheel dressed with iron-free abrasive for deeper scratches. Follow polish lines. Then clean with soap or detergent as for routine cleaning Do not use ordinary steel wool - iron particles can become embedded in stainless steel and cause further surface problems. Stainless steel and "Scotchbrite" scouring pads are satisfactory.

 

 

PROBLEM CLEARING AGENT COMMENTS
Routine cleaning All finishes Soap mild detergent and water. (preferably warm) Sponge, rinse with clean water, wipe dry if necessary. Follow polish lines.
Fingerprints All finishes Soap warm water or organic solvent (eg acetone, alchol, methylated spirits) Rinse with clean water and pipe dry. Follow polish lines.
Stubborn stains and discoloration. All finishes. Mild cleaning solutions. Ensure any properietary cleaners state compatibility with stainless steel. Phpsphoric acid cleaners may also be effective Use rag, sponge or fibre brush (soft nylon or natural bristle. An old toothbrush can be useful). Rinse well with clean water and wipe dry. Follow polish lines.
Lime deposits from hard water. Solution of one part vinegar to three parts water. Soak in solution then brush to loosen. Rise well with clean water.
Oil or grease marks. All finishes. Organic solvents (eg. acetone, alchol, methylated spirits, proprietary "safety solvents"). Baked-on grease can be softened beforehand with ammonia Clean after  with soap and water, rinse with clean water and dry. Follow polish lines
 
PROBLEM CLEARING AGENT COMMENTS
Rust and other corrosion products. Embedded or adhering "free iron Very light rust stain can be removed by 10% nitric acid. More significant rust or embedded iron will require picking. See also previous sections on Passivating and Picking. Sand or glass-bead blasting is another option Wear PPE as appropriate. Afterwards rinse well with clean water. Mix in acid-proof container, and be very careful with the acid, (See Precautions for acid cleaners)
Routine cleaning of boat fittings. Frequent washing down with fresh water. Recommended after each time the boat is used in salt water.
Cooking pot boiled dry. Remove burnt food by soaking in hot water with detergent, baking soda or amonia. Afterwards clean and polish. with a mild abrasive if necessary. See comments re steel wool.
Dark oxide from welding or heat treatment. "Picking Paste" or picking solutions given on previous page. Must be careful rinsed, and use care in handling (see Precautions for acid cleaners).
Scratches on polished (satin or brushed) finish. Slight scratches - use impregnated nylon pads. Polish with polishing wheel dressed with iron-free abrasive for deeper scratches. Follow polish lines. Then clean with soap or detergent as for routine cleaning Do not use ordinary steel wool - iron particles can become embedded in stainless steel and cause further surface problems. Stainless steel and "Scotchbrite" scouring pads are satisfactory.

 

 

PROBLEM CLEARING AGENT COMMENTS
Routine cleaning All finishes Soap mild detergent and water. (preferably warm) Sponge, rinse with clean water, wipe dry if necessary. Follow polish lines.
Fingerprints All finishes Soap warm water or organic solvent (eg acetone, alchol, methylated spirits) Rinse with clean water and pipe dry. Follow polish lines.
Stubborn stains and discoloration. All finishes. Mild cleaning solutions. Ensure any properietary cleaners state compatibility with stainless steel. Phpsphoric acid cleaners may also be effective Use rag, sponge or fibre brush (soft nylon or natural bristle. An old toothbrush can be useful). Rinse well with clean water and wipe dry. Follow polish lines.
Lime deposits from hard water. Solution of one part vinegar to three parts water. Soak in solution then brush to loosen. Rise well with clean water.
Oil or grease marks. All finishes. Organic solvents (eg. acetone, alchol, methylated spirits, proprietary "safety solvents"). Baked-on grease can be softened beforehand with ammonia Clean after  with soap and water, rinse with clean water and dry. Follow polish lines
 
Supply location

Passivation Liquid RX manufacturer supplier distributor in Mumbai, Kandla, Kolkata, Vizag, Chennai, India, Fujairah, Dubai UAE, Muscat Oman, Kenya Africa. Get the best quality of Passivation Liquid RX at a competitive price from us. We have ready stock of Passivation Liquid RX in India, UAE Gulf, Oman, Kenya Africa. Contact us for bulk as well as small orders.

Remarks / Precaution

DENGEROUS FOR ALL BODY PART
 

NB. Before disposing the passivating fluid it should be neutralized. ( Caustic / Soda ash /  slaked lime )
 

In accordance with the latest E.E.C Council directives
R 34                        :               Causes burn

S2                           :               Keep out of reach of children

S 26                        :               In case of contact with eyes rinse immediately with plenty of wate and seek medical advice

Note

It also helps to detect pinholes after welding.

Why Passivation required ?

1. Stainless Steel owes  its corrosion resistance to the formation of a chromium oxide surface layer but this happened due to presence of oxygen , And if the oxide has been stripped, perhaps by pickling, then the oxide layer takes a short time to reach its full thickness and this can be accelerated by passivation.

2. The heat tint produced by welding is not only unsightly but the thicker oxide layer includes chromium from the surface of the metal, lowering its corrosion resistance. Pickling both removes the oxide layer causing the colour tints and a thin layer of the underlying metal to restore the original properties.

3. Iron Contamination
A major cause of corrosion in service is iron contamination which can arise from a variety of sources. These include using tools made of mild or constructional steels like fork lifts being a common cause for abrasives that contain iron and any tool that has previously been used on non stainless steel. Cross contamination can also arise from grindings and debris created whilst working close by on steel, either  in the workshop or on site. Iron contamination is not always obvious, if it is suspected it can be detected using the ASTM A380, ferroxyl test. This is a rapid test in which a solution turns blue in the presence of iron. Pickling is a very effective method of removing this iron contamination from the surface.

 

Safety Data (MSDS)

Product Name RXSOL-20-2401-210
Product Type Passivation Liquid

Company Details:

RX MARINE INTERNATIONAL
105, A wing , BSEL , TECH PARK.
VASHI ,NEW BOMBAY 400703 INDIA

Phone +91 22 65113333 / 5555 / 9999
Fax +91 22 2781 1318 :::AOH :0091 9821214367
Email mail@rxmarine.com

 

Chemicals /Ingridents CAS No. EC No.  Contents
weight-%
Hazard symbol/
Risk phrase*
Nitric acid, HNO3 7697-37-2 231-714-2 20-40 O, C: R8, R35
HF 7664-39-3 231-634-8 ---- R26/27/28, R35
KoH 1310-58-3   -----   ----- ---------------

Environmental Hazards

Harmful to aquatic organism

Human Health  Hazards

Burning cause sensitization by the skin contact

Physical & Chemical Hazards

None none

Ingestion

If conscious washout mouth and give out one pint of water to drink . Do not induce vomiting without medical attention .

Inhalation

Remove to fresh air . Obtain medical attention

Eye Contact

Flush with water for at least 15 minutes. Obtain medical attention

Extinguishing Media:-

Suitable

Non Flamable , Use extinguishing media like foam dry Co2

Not suitable

Not applicable

Special

Not applicable

Protection of fire Fighter

Not applicable 

Personal Precaution & Protection Evacuate, isolate hazard area and deny entry.Avoid contact with: skin, eyes and clothing. Take off immediately all contaminated clothing. Note that contaminated clothing may be a fire hazard. Contaminated clothing should be soaked with water before being removed. It must be laundered
Environmental
Protection

Prevent from entering into drains, ditches or rivers. Use appropriate containment to avoid environmental contamination.
Clean Up Method :
Small Spillage:
 Absorb or contain liquid with sand, earth or spill control material. Allow to evaporate or shovel up and place in a labeled, sealable container for subsequent safe disposal. Do not disperse using water.
Large Spillage: Dike far ahead of liquid spill for later disposal. Do not flush to sewer or waterways. Prevent release to environment if possible.

Handling : Respiratory & Eye System Protection    Do not breath  . Avoid contact with skin and eyes . In case of contact with skin , wash immediately with plenty of fresh water.

Storage : Store in tightly closed containers in dry, ventilated and locked hazardous chemical store with leak containment. Protect against physical damage and keep away from heat, source of ignition and incompatibles.

 Engineering Control : Provide mechanical ventilation for confined spaces.

Eye Protection : Wear chemical safety goggles and face shield. Have eye-wash station available where eye contact can occur.

Skin Protection : Wear glove impervious to conditions of use. Additional protection may be necessary to prevent skin contact including use of apron, face shield, boots or overall.

Respiratory Protection : Full face shield operated at positive pressure. Self-contained breathing apparatus may be required in confined spaces or non routine or emergency situations. .

                                                                    

Appearance Liquid @ 25’C, clear, colourless
Odour Pungent acidic
Boiling point 0C 105
Melting point 0C -20
pH 1 @ 1% solution
Specific Gravity 1.2 g/ml
Flash point (closed cup) 0C Not Applicable
Vapor Pressure None
Vapor Density None
Solubility in  with water Fully Soluble.
Flammability (solid, gas) Not Applicable
Upper/Lower Flammability/Explosive Limits Not Applicable
 
Autoignition temperature Not Applicable
Decomposition Temperature Not Applicable

Chemical Stability : Stable
Possibility of hazardous reaction : Reacts with most metals producing hydrogen
gas and nitrogen oxides
Condition to avoid : Intense heat.
Incompatible materials :  Strong bases. Strong reducing agents. Most common metals. Organic material. Alcohols. Carbides
Hazardous decomposition material :Formationof hazardous combustion gases or vapours possible

Signs and symptoms of overexposure : Eye irritation, headache, nausea, vomiting.

Acute Effects : 
Eye contact : May cause cornea damage and permanent eye damage
Skin contact :Blistering and burn. Progressive ulceration will occur if treatment is not immediate.
Inhalation : Acute Toxicity
LD/LC50 values relevant for classification:
Oral LD50 1276 mg/kg (rat) - 1 hour- for Hydrofluoric acid
67 mg/kg (rat) – 4 hours -for Nitric acid
Sensitization : No sensitizing effects known.

 

Excoticity Harmful effect on aquatic organisms due to pH shift
Persistence anddegradability No data available
Bio-accumulative potential No data available
Mobility Soluble in water. Readily absorbed into soil
Other adverse effects No data available

 

Neutralize the product with lime soda or ash before dispose. Upon neutralization of remaining acid rests and rinsing water can heavy metals precipitate and these constitute hazardous waste.

Additional information:
Effluent must be separated and disposed of as acidic waste. The product has in the undiluted form toxic effects on soil and water. The remaining acid rests and rinsing water can lower the pH value of wastewater and therefore should not be released until it has undergone a neutralization process.

UN Number
2922

UN PROPPER SHIPPING NAME
CORROSIVE LIQUID, TOXIC, N.O.S. (hydrofluoric acid, nitric acid)

TRANSPORT HAZARD CLASS(ES)
Classification Code: 

CT1

PACKING GROUP
II

ENVIRONMENTAL HAZARDS
IMDG (Sea):

Class 8 (6.1) EmS F-A, S-B
Marine Pollutant: No

ADR/RID (road, rail):
Class 8 (6.1)
Tunnel restriction code: (E)

IATA/DGR (air):
Class 8 (6.1)

ADDITIONAL INFORMATION
The product is to be transported according to dangerous goods regulations.

Regulations:Hazard Symbols : Corrosive and Toxic
Risk Phrase
35 causes severe burns
Safety Phrase
23 Do not breathe in vapour.
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advise.
36/37/39 Wear suitable protective clothing and gloves and eye & face shield.
45 In case of accident or if you feel unwell, seek medical advice
Note
The regulatory information given above only indicates the principal regulations specifically applicable to the product described in the safety data sheet. The user's attention is drawn to the possible existence of additional provisions which complete these regulations. Refer to all applicable national, international and local regulations or provisions.

The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall Rx Marine International be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if Rx Marine International has been advised of the possibility of such damages.

DISCLAIMER OF LIABILITY :The information in this SDS was obtained from sources which we believe are reliable. However, the information is provided without any warranty, express or implied, regarding its correctness. The conditions or methods of handling, storage, use or disposal of the product are beyond our control and may be beyond our knowledge. For this and other reasons, we do not assume responsibility and expressly disclaim liability for loss, damage or expense arising out of or in any way connected with the handling, storage, use or disposal of the product. This MSDS was prepared and is to be used only for this product. If the product is used as a component in another product, this MSDS information may not be applicable