Part No: RXSOL-38-2401-220
Gentle passivation liquid for safe metal passivation without toxic fuming
RXSOL Passivex C is a concentrated, water-based citric acid passivation liquid designed for the chemical passivation of stainless-steel surfaces following fabrication, welding, machining, grinding, pickling or cleaning.
The product removes surface contamination and assists in the removal of free iron and other iron-containing residues from stainless-steel surfaces, promoting the formation and restoration of a stable chromium-rich passive oxide layer.
Unlike conventional nitric-acid passivation products, RXSOL Passivex C uses citric acid technology and is suitable for applications where a nitric-free passivation process is preferred.
ASTM A967/A967M specifically recognizes Passivex C immersion treatments as chemical passivation treatments for stainless-steel parts.
- Austenitic stainless steel
- 300-series stainless steel
- 304 / 304L stainless steel
- 316 / 316L stainless steel
- Stainless-steel tanks
- Stainless-steel piping
- Process vessels
- Heat exchangers
- Pumps
- Valves
- Stainless-steel fabrication
- Food-processing equipment
- Pharmaceutical equipment
- Chemical-processing equipment
- Marine stainless-steel equipment
- Welded stainless-steel assemblies
- Typical post-fabrication applications
- Welding
- Grinding
- Polishing
- Machining
- Cutting
- Fabrication
- Pickling
- Removal of fabrication contamination
How does Passivation using RXSOL Passivex C work?
- Free iron
- Embedded carbon steel particles
- Iron oxide
- Grinding debris
- Welding contamination
- Machining residues
- Surface deposits
| Property | Typical Value |
|---|---|
| Appearance | Clear, colourless to slightly yellow liquid |
| Odour | Mild acidic |
| Chemical type | Organic acid |
| pH, neat | Typically ~1.5-2.0 |
| Specific gravity @ 25°C | Typically ~1.12-1.16 |
| Water solubility | Completely miscible |
| Foam | Low |
| Flash point | Not applicable / non-flammable aqueous solution |
| VOC | Negligible |
| Corrosivity | Acidic; handle accordingly |
| Physical state | Liquid |
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In many applications, thorough water rinsing is sufficient to stop the acid treatment.
A separate neutralization step may be used when required by the validated process.
If neutralization is employed, it should be validated to ensure that the treated stainless-steel surface still meets the required passivation acceptance criteria. ASTM A967 recognizes rinsing with or without a separate neutralization treatment.
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
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 | Passivex C |
| Part Number | RXSOL-38-2401-220 |
Company Details:
RX MARINE INTERNATIONAL
105, A wing , BSEL , TECH PARK.
VASHI ,NEW BOMBAY 400703 INDIA
Branch : Kandla, Mumbai , Chennai, Vizag, Kolkata, UAE , OMAN , CANADA and KENYA
| Phone | +91 22 20871200 - 1400 |
| Fax | +91 22 27612100 :::AOH :0091 9821214367 |
| mail@rxmarine.com | |
| Website | www.rxmraine.com |
| Name of substance | CAS No | Wt% |
Classification acc. to
GHS
|
| Citric acid | 77-92-9 | 25 – 50 |
Eye Irrit. 2 / H319
STOT SE 3 / H335
|
| Proprietory blend of wetting agents and corrosion inhibitors | - | >60 | - |
For the full text of the H-Statements mentioned in this Section, see Section 16.
Label elements
| Signal Word | Warning |
| Hazard Statements |
H319 Causes serious eye irritation
H335 May cause respiratory irritation
|
| Precautionary Statements |
Precautionary statements - prevention
P261 Avoid breathing dust/fume/gas/mist/vapours/spray
P280 Wear eye protection/face protection
Precautionary statements - response
P304+P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact
lenses, if present and easy to do. Continue rinsing
P312 Call a POISON CENTER or doctor/physician if you feel unwell
Precautionary statements - storage
P403+P233 Store in a well-ventilated place. Keep container tightly closed
|
| Supplemental Hazard Statements | None |
| Other hazards |
Results of PBT and vPvB assessment
This mixture does not contain any substances that are assessed to be a PBT or a vPvB.
|
| General notes | Take off contaminated clothing. |
| Following inhalation | Provide fresh air. In all cases of doubt, or when symptoms persist, seek medical advice. |
| Following skin contact | Rinse skin with water/shower. In all cases of doubt, or when symptoms persist, seek medical advice. |
| Following eye contact | Rinse skin with water/shower. In all cases of doubt, or when symptoms persist, seek medical advice. |
| Following ingestion | Rinse mouth. Call a doctor if you feel unwell. |
| Most important symptoms and effects, both acute and delayed | Irritation, Cough, Dyspnoea |
| Indication of any immediate medical attention and special treatment needed | None |
| Suitable extinguishing media |
Co-ordinate firefighting measures to the fire surroundings
water spray, alcohol resistant foam, dry extinguishing powder, BC-powder, carbon dioxide (CO₂)
|
| Unsuitable extinguishing media | Water jet |
| Special hazards arising from the substance or mixture | Ingredients of the mixture combustible. The product itself does not burn. |
| Hazardous combustion products | Carbon monoxide (CO), Carbon dioxide (CO₂) |
| Advice for firefighters | In case of fire and/or explosion do not breathe fumes. Fight fire with normal precautions from a reasonable distance. Wear self-contained breathing apparatus. |
Personal precautions, protective equipment and emergency procedures
| For non-emergency personnel |
Avoid contact with skin, eyes and clothes. Do not breathe vapour/spray.
|
| Environmental precautions | Keep away from drains, surface and ground water. The product is an acid. Before discharge into sewage plants the product normally needs to be neutralised. |
| Methods and material for containment and cleaning up | |
| Advice on how to contain a spill | Absorb with liquid-binding material (sand, diatomaceous earth, acid- or universal binding agents). |
| Other information relating to spills and releases | Place in appropriate containers for disposal. |
| Reference to other sections | Hazardous combustion products: see section 5. Personal protective equipment: see section 8. Incompatible materials: see section 10. Disposal considerations: see section 13. |
| Precautions for safe handling | Provision of sufficient ventilation. |
| Advice on general occupational hygiene | Wash hands before breaks and after work. Keep away from food, drink and animal feedingstuffs. |
| Conditions for safe storage, including any incompatibilities |
Keep container tightly closed.
|
| Incompatible substances or mixtures | Observe hints for combined storage |
| Consideration of other advice: | |
| Specific designs for storage rooms or vessels | Recommended storage temperature: 15 – 25 °C |
| Specific end use(s) | No information available. |
| Name of substance | CAS No | End point | Threshol d level | Organism | Environmental compartment | Exposure time |
| Citric acid | 77-92-9 | PNEC | 0.44 mg/ | aquatic organisms | freshwater | short-term (single instance) |
| Citric acid |
77-92-9
|
PNEC | 0.44 mg/ | aquatic organisms | marine water | short-term (single instance) |
| Citric acid | 77-92-9 | PNEC | 1,000 mg/l | aquatic organisms | sewage treatment plant (STP) | short-term (single instance) |
| Citric acid | 77-92-9 | PNEC | 34.6 mg/kg | aquatic organisms | freshwater sediment | short-term (single instance) |
| Citric acid | 77-92-9 | PNEC | 3.46 mg/kg | aquatic organisms | marine sediment | short-term (single instance) |
| Citric acid | 77-92-9 | PNEC | 33.1 mg/kg | terrestrial organisms | soil | short-term (single instance) |
| Eye/face protection | Use safety goggle with side protection. |
| Skin protection |
Hand protection
Wear suitable gloves. Chemical protection gloves are suitable, which are tested according to EN 374.
For special purposes, it is recommended to check the resistance to chemicals of the protective gloves mentioned above together with the supplier of these gloves. The times are approximate values from
measurements at 22 ° C and permanent contact. Increased temperatures due to heated substances, body heat etc. and a reduction of the effective layer thickness by stretching can lead to a considerable reduction of the breakthrough time. If in doubt, contact manufacturer. At an approx. 1.5 times larger / smaller layer thickness, the respective breakthrough time is doubled / halved. The data apply only to the pure substance. When transferred to substance mixtures, they may only be considered as a guide.
Type of material
NBR (Nitrile rubber)
Material thickness
0,11 mm
Breakthrough times of the glove material
480 minutes (permeation: level 6)
Other protection measures
Take recovery periods for skin regeneration. Preventive skin protection (barrier creams/ointments) is recommended.
|
| Respiratory protection |
Respiratory protection necessary at: Aerosol or mist formation. Type: ABEK (combined filters against gases and vapours, colour code: Brown/Grey/Yellow/Green).
|
| Environmental exposure controls | Keep away from drains, surface and ground water. |
| Physical state | Liquid |
| Color | Colorless |
| Odor | Odorless |
| Melting point/freezing point | Not determined |
| Boiling point or initial boiling point and boiling range | ~100 °C at 1,013 hPa |
| Flammability | Non-combustible |
| Lower and upper explosion limit | Not determined |
| Flash point | Not determined |
| Autoignition temperature | Not determined |
| Decomposition temperature | Not relevent |
| pH (value) | 1 – 2 (20 °C) |
| Kinematic viscosity | Not determined |
| Water solubility | Miscible in any proportion |
| Partition coefficient n-octanol/water (log value) | This information is not available |
| Vapour pressure | 23 hPa at 20 °C |
| Density | 1.24 g /cm³ at 20 °C |
| Relative vapor density | Information on this property is not available |
| Particle characteristics | Not relevant (liquid) |
| Oxidising properties | None |
| Other information | |
| Information with regard to physical hazard classes |
Hazard classes acc. to GHS
(physical hazards): not relevant
|
| Other safety characteristics | |
| Miscibility | Completely miscible with water |
| Reactivity | This material is not reactive under normal ambient conditions. |
| Chemical stability | The material is stable under normal ambient and anticipated storage and handling conditions of temperature and pressure. |
| Possibility of hazardous reactions | Violent reaction with: strong oxidiser, Reducing agents, Metals, Bases |
| Conditions to avoid | There are no specific conditions known which have to be avoided. |
| Incompatible materials | Different metals |
| Hazardous decomposition products | Hazardous combustion products: see section 5. |
| Information on toxicological effects |
Test data are not available for the complete mixture.
|
| Classification procedure | The method for classification of the mixture is based on ingredients of the mixture (additivity formula). |
| Acute toxicity | Shall not be classified as acutely toxic. |
| Skin corrosion/irritation | Shall not be classified as corrosive/irritant to skin |
| Serious eye damage/eye irritation | Causes serious eye irritation. |
| Respiratory or skin sensitisation | Shall not be classified as a respiratory or skin sensitiser. |
| Germ cell mutagenicity | Shall not be classified as germ cell mutagenic |
| Carcinogenicity | Shall not be classified as carcinogenic. |
| Reproductive toxicity | Shall not be classified as a reproductive toxicant |
| Specific target organ toxicity - single exposure | May cause respiratory irritation. |
| Specific target organ toxicity - repeated exposure | Shall not be classified as a specific target organ toxicant (repeated exposure). |
| Aspiration hazard | Shall not be classified as presenting an aspiration hazard. |
| If swallowed |
Data are not available.
|
| If in eyes | Causes serious eye irritation |
| If inhaled | Irritation to respiratory tract, cough, Dyspnoea |
| If on skin | irritant effects, pruritis, localised redness |
| Other information | None |
| Endocrine disrupting properties | None of the ingredients are listed. |
| Toxicity | Shall not be classified as hazardous to the aquatic environment. |
| Biodegradation | Data are not available. |
| Bioaccumulative potential | Data are not available. |
| Mobility in soil | Data are not available. |
| Results of PBT and vPvB assessment | Data are not available. |
| Endocrine disrupting properties | Data are not available. |
| Other adverse effects | Data are not available. |
| Waste Treatment Methods | This material and its container must be disposed of as hazardous waste. Dispose of contents/container in accordance with local/regional/national/international regulations. |
| Sewage disposal-relevant information | Do not empty into drains. |
| Remarks | Waste shall be separated into the categories that can be handled separately by the local or national waste management facilities. Please consider the relevant national or regional provisions. |
| UN number | Not subject to transport regulations |
| UN proper shipping name | Not assigned |
| Transport hazard class(es) | Not assigned |
| Packaging group | Not assigned |
| Environmental hazards | Non-environmentally hazardous acc. to the dangerous goods regulations |
| Special precautions for user | There is no additional information. |
| Transport in bulk according to IMO instruments | The cargo is not intended to be carried in bulk. |
| Information for each of the UN Model Regulations | |
| Transport informationNational regulationsAdditional information(UN RTDG) | Not subject to transport regulations. UN RTDG |
| International Maritime Dangerous Goods Code (IMDG) - Additional information | Not subject to IMDG. |
| International Civil Aviation Organization (ICAO-IATA/DGR) - Additional information | Not subject to ICAO-IATA. |
| Safety, health and environmental regulations/legislation specific for the substance or mixture | There is no additional information. |
| Australian Inventory of Chemical Substances(AICS) | All ingredients are listed or exempt from listing. |
| Other information | Directive 94/33/EC on the protection of young people at work. Observe employment restrictions under the Maternity Protection Directive (92/85/EEC) for expectant or nursing mothers. |
| Chemical Safety Assessment | Chemical safety assessments for substances in this mixture were not carried out. |
| Other Information |
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 weassume 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 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. |