Part No: RXSOL-19-1999-025
Viscosity Builder for Toilet Cleaner
Acid Thickener Rx is a nonionic surfactant designed to build viscosity in acid media. Acid Thickener Rx surfactant may be used alone in hydrochloric acid, or in combination with sodium chloride (salt) when used with other acids (such as phosphoric, sulfuric, hydrofluoric, citric, oxalic, etc.) Varying the use level of Acid Thickener surfactant (and salt) will vary the viscosity build. Acid Thickener Rx is a versitle, broad spectrum non phenolic biocide & Fungicide for leather, paper, paint, textile,wood and water treatment , free from penta - chlorophenate.
RXSOL Technical Data Sheet (TDS)
RXSOL Acid Thickener – HCl Toilet Cleaner & Descaling Gel
Product Name: RXSOL Acid Thickener Product Category: Acid-Compatible Surfactant Thickener Chemical Nature: Cationic / Non-Ionic Surfactant Blend Application: Hydrochloric Acid Toilet Cleaner, Acidic Descaling Gel, Sanitary Cleaner and Industrial Acid Cleaning Formulations Product Code: To be assigned Physical Form: Liquid Concentrate
Product Description
RXSOL Acid Thickener is a specialty surfactant-based viscosity modifier developed for manufacturing hydrochloric acid-based toilet cleaners, bathroom descalers and industrial acid cleaning gels.
The product is designed to increase the viscosity of compatible acidic cleaning formulations, improving adhesion to vertical surfaces and extending the contact time between the cleaning solution and mineral deposits.
Unlike conventional detergent thickeners, which may lose viscosity or become unstable in strongly acidic solutions, RXSOL Acid Thickener is intended for use in hydrochloric acid formulations after appropriate compatibility and stability testing.
The thickened acidic formulation helps improve the removal of calcium carbonate deposits, lime scale, rust stains and mineral contamination from compatible acid-resistant surfaces.
It is an ethoxylate for preparing high viscosity acid solutions and thus is commonly known as acid thickener. It is most predominantly used in preparing liquid toilet cleaner based on hydrochloric acid.
Applications
|
Application |
Function |
|---|---|
|
Toilet Bowl Cleaner |
Gel formation and vertical surface cling |
|
HCl-Based Descaler |
Viscosity improvement and prolonged contact |
|
Bathroom Scale Remover |
Improved application to acid-resistant surfaces |
|
Ceramic Sanitary Cleaner |
Controlled flow and mineral deposit removal |
|
Industrial Descaling Gel |
Thickening of compatible acidic formulations |
|
Tile Cleaning Chemical |
Removal of mineral deposits from acid-resistant tiles |
|
Marine Descaling Gel |
Localized cleaning of compatible metal surfaces |
Material compatibility: Hydrochloric acid can aggressively attack many metals, cementitious materials, natural stone and certain coatings. A thickener does not make HCl safe for these surfaces. Metal descaling requires a separately validated corrosion inhibitor system.
It is used as viscosity builder in acid cleaning and the dosage suggested for building viscosity is 2 to 2.4% depending upon the acid content.
Recommended Dosage
|
Final HCl Concentration |
Initial Thickener Trial |
|---|---|
|
5% HCl |
1–3% |
|
8–10% HCl |
2–4% |
|
10–15% HCl |
2–5% |
These are screening ranges only. Actual viscosity depends on the thickener chemistry, acid strength, surfactant concentration and formulation temperature.
Key Features and Benefits
-
Provides viscosity development in compatible hydrochloric acid formulations.
-
Improves cling on vertical toilet bowl and sanitary surfaces.
-
Helps increase contact time for removal of mineral deposits.
-
Suitable for developing acidic gel cleaners.
-
Can improve uniform application and reduce rapid runoff.
-
Designed for liquid blending and industrial manufacturing.
-
Allows adjustment of viscosity through surfactant concentration.
-
May provide additional wetting performance during cleaning.
|
Active content |
Blend of Ethoxylates (~100%w/w) |
|
Amine Value |
120-160 |
|
Appearance |
Pale yellow viscous liquid |
|
Chemical Nature |
Nonionic |
|
Flash point |
>250O C |
|
Non volatiles @100OC |
98-100% |
|
Solubility |
Miscible in water in all ratios |
|
Sp. Gravity at 30 degree C |
0.95-1 |
Proposed Technical Specifications
The following values are preliminary development targets, not verified specifications for an existing RXSOL commercial product.
|
Parameter |
Proposed Specification |
|---|---|
|
Appearance |
Clear to slightly hazy liquid |
|
Colour |
Colourless to pale yellow |
|
Chemical Nature |
Acid-compatible surfactant blend |
|
Ionic Character |
Cationic / Non-Ionic |
|
Odour |
Mild characteristic |
|
Specific Gravity at 25°C |
0.98–1.05 |
|
pH (1% Aqueous Solution) |
Formulation-dependent |
|
Water Solubility |
Dispersible / Miscible |
|
Active Matter |
Approximately 25–35% |
|
Viscosity at 25°C |
To be established |
|
HCl Compatibility |
Target: 5–15% HCl |
|
Recommended Dosage |
Initial trial: 1–5% |
|
Flash Point |
To be determined |
|
Storage Stability |
To be validated |
|
Shelf Life |
Subject to stability testing |
Storage and Handling
Store the thickener concentrate in clean, tightly closed HDPE or other compatible containers.
Keep away from excessive heat, direct sunlight and incompatible chemicals.
For acid-containing finished products, use only packaging validated for the specific hydrochloric acid concentration.
Acid Thickener Rx manufacturer supplier distributor in Mumbai, Kandla, Kolkata, Vizag, Chennai, India, Fujairah, Dubai, Sharjah, UAE, Gulf, Middle East, Muscat Oman, Kenya Africa. Get the best quality of Acid Thickener Rx at a competitive price from us. We have ready stock of Acid Thickener Rx in India, UAE Gulf, Oman, Kenya Africa. Contact us for bulk as well as small orders.
Frequently Asked Questions
Q1. Can RXSOL Acid Thickener be used in 33% hydrochloric acid?
Compatibility at 33% HCl has not been established. This proposed formulation is intended for evaluation in lower-acid formulations, initially around 5–15% HCl.
Q2. Can normal detergent thickener be used for HCl toilet cleaner?
Most conventional detergent thickeners are not designed for strong acidic conditions and may lose viscosity or separate.
Q3. Can this thickener be used for industrial descaling?
It may be evaluated for localized acid descaling gels, but corrosion inhibitor compatibility and equipment metallurgy must be assessed separately.
Q4. Is the formulation transparent?
A clear appearance is possible, but cannot be guaranteed without formulation and stability testing.
Q5. What is the recommended dosage?
An initial screening range of 1–5% is proposed. The optimum dose must be determined by viscosity and stability testing.
Manufacturing Recommendation
For a commercial RXSOL acid thickener, the most important objective is to achieve repeatable viscosity development at the customer's actual HCl concentration.
I recommend conducting a pilot evaluation at three acid concentrations—5%, 10% and 15%—and measuring viscosity, phase stability and surface cling before finalizing the TDS.
A CTAC/amine oxide blend is only one possible approach. A purpose-designed acid thickener based on suitable long-chain amine or quaternary ammonium surfactant chemistry may perform better, but must be selected using supplier compatibility data and actual laboratory testing.
One important question: Do you want the RXSOL Acid Thickener to work mainly with 10–12% HCl toilet cleaner, or with 20–33% HCl industrial descaling acid? The required surfactant chemistry and achievable viscosity can differ substantially.
RXSOL Acid Thickener Manufacturing Formulation
100 KG Pilot Batch
Formulation A – Acid-Compatible Surfactant Thickener Concentrate
This is an experimental formulation based on an acid-compatible cationic surfactant and non-ionic co-surfactant system. It is not a verified commercial RXSOL formula.
|
Raw Material |
Percentage |
Quantity for 100 kg |
|---|---|---|
|
Cetrimonium Chloride (CTAC, 30% Active) |
45.0% |
45.0 kg |
|
Lauryl Dimethyl Amine Oxide (30% Active) |
25.0% |
25.0 kg |
|
C12–15 Alcohol Ethoxylate (7 EO) |
5.0% |
5.0 kg |
|
Propylene Glycol |
5.0% |
5.0 kg |
|
Demineralized Water |
20.0% |
20.0 kg |
|
Total |
100% |
100 kg |
Estimated surfactant active matter: Approximately 26%, assuming the alcohol ethoxylate is 100% active.
Function of Each Ingredient
Cetrimonium Chloride (CTAC)
A cationic surfactant that can participate in viscosity development in selected acidic surfactant systems. Its performance depends on the formulation and counterion environment.
Lauryl Dimethyl Amine Oxide
A surfactant that becomes predominantly protonated under strongly acidic conditions. It may contribute to wetting and viscosity development when paired with compatible surfactants.
C12–15 Alcohol Ethoxylate
Provides additional wetting and helps improve the distribution of cleaning solution across contaminated surfaces.
Propylene Glycol
Acts as a coupling solvent and formulation aid.
Demineralized Water
Serves as the carrier for the liquid concentrate.
Manufacturing Procedure – 100 KG
-
Charge approximately 15 kg of demineralized water into a clean, compatible mixing vessel.
-
Start slow to moderate agitation.
-
Add propylene glycol and mix until uniform.
-
Slowly add CTAC 30% while maintaining agitation.
-
Add lauryl dimethyl amine oxide gradually.
-
Add the alcohol ethoxylate and continue mixing until homogeneous.
-
Add the remaining demineralized water to achieve a total batch weight of 100 kg.
-
Mix until uniform and allow entrained air to dissipate.
-
Check appearance, viscosity, specific gravity and phase stability.
-
Package in compatible, labelled containers.
Processing temperature: Preferably 20–35°C, subject to raw-material handling requirements.
Do not add concentrated hydrochloric acid during the manufacture of this thickener concentrate. Acid compatibility should be evaluated separately using controlled laboratory trials.
Example Application: Thickened HCl Toilet Cleaner
100 KG Development Formulation – Approximately 10% HCl
|
Raw Material |
Quantity |
|---|---|
|
Hydrochloric Acid 33% |
30.3 kg |
|
RXSOL Acid Thickener (Formulation A) |
3.0 kg |
|
Acid-Compatible Fragrance |
Optional, validated quantity |
|
Acid-Compatible Colour |
Optional, validated quantity |
|
Demineralized Water |
Balance to 100 kg |
|
Total |
100 kg |
The formulation contains approximately 10% active HCl by weight before considering impurities and assay variations.
Important: This is a composition for controlled laboratory development, not a validated production recipe. The proposed surfactant system may not achieve the desired gel viscosity at this acid concentration.
Acid Mixing Safety
Hydrochloric acid is corrosive and can release irritating hydrogen chloride vapours.
Manufacturing requires acid-compatible equipment, local exhaust ventilation, appropriate PPE and trained personnel. Always add acid slowly to water under controlled conditions; never add water to concentrated acid.
Do not mix hydrochloric acid cleaners with sodium hypochlorite, bleach or other oxidizing cleaning products because toxic chlorine gas may be released.
RXSOL Technical Product Bulletin
Acid Thickener for Hydrochloric Acid Cleaning Formulations
Working Principle
RXSOL Acid Thickener is designed to modify the rheological behaviour of acid-based cleaning solutions.
Selected cationic and protonated amphoteric surfactants can form organized aggregates in acidic media. Under suitable conditions, these structures can increase viscosity and improve surface cling.
However, strong acid concentration, chloride ion concentration and surfactant ratio strongly influence aggregate formation. The result may range from a low-viscosity liquid to a viscous solution or an unstable separated system.
Consequently, the viscosity of the final acid cleaner must be demonstrated experimentally rather than inferred from the thickener composition alone.
Quality Control Specifications for Final Acid Cleaner
|
Parameter |
Suggested Development Target |
|---|---|
|
Appearance |
Uniform liquid or gel |
|
Free HCl |
As per product formulation |
|
Viscosity at 25°C |
500–3,000 mPa·s |
|
Phase Separation |
None under validated storage conditions |
|
Surface Cling |
Satisfactory on reference vertical surface |
|
Cleaning Performance |
Effective removal of standardized calcium carbonate deposits |
|
Low Temperature Stability |
No unacceptable separation |
|
Accelerated Stability |
No unacceptable change in viscosity or appearance |
|
Packaging Compatibility |
No leakage, deformation or significant degradation |
Recommended Performance Testing
Acid Compatibility: Evaluate the thickener at 5%, 10% and 15% HCl concentrations.
Viscosity: Measure using a Brookfield viscometer at 25°C with a documented spindle and speed.
Vertical Surface Cling: Apply a standardized quantity to a reference acid-resistant surface and measure runoff.
Storage Stability: Evaluate samples at ambient and elevated temperatures using suitable sealed, compatible laboratory containers.
Cleaning Efficiency: Compare calcium carbonate removal under controlled conditions against an unthickened acid cleaner.
Corrosion Compatibility: Conduct material-specific testing for any metal cleaning application.
Advantage :
- Imparts very good viscosity at very low dosage.
- Gives a stable product without any fear of separation later.
- The product is almost colorless and transparent. This gives a very bright and sparkling final product on addition of dye.
- Turns out to be very economical because of the low dose.
- Easy to use readily miscible with water.
- Long term viscosity stability.
- Provides 90% corrosion inhibition in HCl.
- Solubilizes easily and quickly.
Storage and Handling :-
The Product can be stored at ambient temperatures for five years. Avoid Contact with strong oxidizing agents .Do not store above 60 Deg C over prolonged periods . Should always be homogenized before use.
Safety Data (MSDS)

| Product Name |
Acid Thickner EBV RXSOL |
| Part Number |
RXSOL-19-1999-025 |
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 |
| 123@rxmarine.com |

Substances : -
| Chemical Name | Cas No. | Percentage |
| Amines, Tallow Alkyl, Ethoxylated | 61791-26-2 | 50% - 80 % |
| Amines, N-tallow alkyltrimethylenedi-, ethoxylated | 61790-85-0 | 20% - 50 % |

Emergency Overview : Corrosive
Keep away from heat and sources of ignition. Combustible Liquid.
Potential Health Effects:
| Inhalation | : | Can cause severe eye, skin and respiratory tract burns. Risk of serious damage.to the lungs (by inhalation). May cause nose, throat, and lung irritation. Inhalation of aerosol may cause irritation to the upper respiratory tract. |
| Eye contact | : | Causes eye burns. May cause blindness. |
| Skin contact | : | Causes skin burns |
| Ingestion | : | If ingested, severe burns of the mouth and throat, as well as a danger of perforation of the oesophagus and the stomach. |
| Chronic Health Hazard | : | This product contains no listed carcinogens according to IARC, ACGIH, NTP and/or OSHA in concentrations of 0.1 percent or greater. |
| Exposure Guidelines | ||
| Target Organs | : | Skin. |

General advice : Seek medical advice. If breathing has stopped or is labored, give assisted respirations. Supplemental oxygen may be indicated. If the heart has stopped, trained personnel should begin cardiopulmonary resuscitation immediately.
Eye contact : Hold eyelids apart, initiate and maintain gentle and continuous irrigation until the patient receives medical care. If medical care is not promptly available, continue to irrigate for one hour.
Skin contact : Immediately remove contaminated clothing, and any extraneous chemical, if possible to do so without delay. Initiate and maintain continuous irrigation until the patient receives medical care. If medical care is not promptly available, continue to irrigate for one hour. Cover wound with sterile dressing.
Ingestion : Do not induce vomiting without medical advice. If a person vomits when lying on his back, place him in the recovery position. Never give anything by mouth to an unconscious person. Prevent aspiration of vomit. Turn victim's head to the side.
Inhalation : If breathing has stopped or is labored, give assisted respirations. Supplemental oxygen may be indicated. If the heart has stopped, trained personnel should begin cardiopulmonary resuscitation immediately. Move to fresh air.

| Suitable extinguishing media | : |
Alcohol-resistant foam. Carbon dioxide (CO2). Dry chemical. Dry sand.Limestone powder. |
| Specific hazards | : | Incomplete combustion may form carbon monoxide. May generate ammonia gas. May generate toxic nitrogen oxide gases. Burning produces noxious and toxic fumes. In the event of fire, cool tanks with water spray . Downwind personnel must be evacuated. Fire or intense heat may cause violent rupture of packages. May form explosive mixtures in air. |
|
Protective equipment for fire-fighters |
: | Avoid contact with the skin. A face shield should be worn. Use personal protective equipment. Wear self contained breathing apparatus for fire fighting if necessary. |
Further information : Do not allow run-off from fire fighting to enter drains or water courses., Fire residues and contaminated fire extinguishing water must be disposed of in accordance with local regulations.

Personal precautions : Wear suitable protective clothing, gloves and eye/face protection. Use self-contained breathing apparatus and chemically protective clothing. Remove all sources of ignition. Evacuate personnel to safe areas.
Environmental precautions : Construct a dike to prevent spreading. Shut off or remove all ignition sources. Construct a dike to prevent spreading.
Methods for cleaning up : Contact Air Products' Emergency Response Center for advice. Approach suspected leak areas with caution. Absorb with inert absorbent materials such as: Dry sand. Vermiculite. Activated charcoal. Place in appropriate chemical waste container.
Additional advice : Open enclosed spaces to outside atmosphere. If possible, stop flow of product.

Handling : Use well-ventilated areas. Avoid breathing vapors and/or aerosols. Avoid contact with skin and eyes. Emergency showers and eye wash stations should be readily accessible. Adhere to work practice rules established by government regulations. Use personal protective equipment. When using, do not eat, drink or smoke.
Storage : Do not store near acids. Keep containers tightly closed in a dry, cool and well-ventilated place. To avoid ignition of vapors by static electricity discharge, all metal parts of the equipment must be grounded. Keep away from heat and sources of ignition. Keep in a dry, cool place. Keep away from oxidizers.
Technical measures/Precautions: Keep away from open flames, hot surfaces and sources of ignition.

Engineering measures : Apply process controls to ensure safe operating conditions. Assess potential flammability hazards based on flashpoint and potential ignition sources. Ensure adequate ventilation. Provide readily accessible eye wash stations and safety showers. Provide natural or explosion-proof ventilation adequate to ensure concentrations are kept below exposure limits.
Personal protective equipment : -
| Respiratory protection | Wear appropriate respirator when ventilation is inadequate. | |
| Hand protection | Neoprene gloves. Impervious gloves.The breakthrough time of the selected glove(s) must be greater than the intended use period. | |
| Eye protection | Full face shield with goggles underneath. | |
| Skin and body protection | Impervious clothing.Skin and body protection :Full rubber suit (rain gear). Rubber or plastic boots. Slicker Suit. | |
| Environmental exposure controls | Construct a dike to prevent spreading. Shut off or remove all ignition sources. | |
| Special instructions for protection and hygiene |
Discard contaminated leather articles. Provide readily accessible eye wash stations and safety showers. Wash at the end of each workshift and before eating, smoking or using the toilet. Provide readily accessible eye wash stations and safety showers. |

| Appearance Form: | Liquid, clear |
| Colour: | Colourless |
| Odour | No data available |
| Odour Threshold | Ammoniacal. |
| pH | No data available |
| Boiling point | > 220 °F (> 104.4 °C) |
| Evaporation rate | No data available |
| Vapour pressure | 59,5 hPa at 20,0 °C |
| Vapour density | No data available |
| Water solubility | completely soluble |
| Viscosity | No data available |
| Explosive properties | No data available |
| Oxidizing properties | No data available |
Other safety information: No data available

| Reactivity | No data available |
| Chemical stability | Stable under recommended storage conditions. |
| Conditions to avoid | Heat, flames and sparks. Extremes of temperature and direct sunlight. |
| Incompatible materials | Alkali metals, Ammonia, Oxidizing agents, Peroxides |
| Hazardous decomposition products |
Other decomposition products - No data available In the event of fire: see section 5 |

Acute Health Hazard :
| Ingestion | LD50 : 1,000 - 2,000 mg/kg Species : Rat. | |
| Inhalation | No data is available on the product itself. | |
| Dermal | No data is available on the product itself. |

Ecotoxicity effects
| Aquatic toxicity | : | (96 h) : 1 mg/l Species : Fish.EC50 (48 h) : 1 mg/l Species : Daphnia. |
| Toxicity other Organisms | : | No data available. |
Persistence and degradability :
| Biodegradability | : | No data is available on the product itself. |
| Mobility | : | No data available. |
| Bioaccumulation | : | No data is available on the product itself. |

Dispose of container and unused contents in accordance with federal, state, and
local requirements.

DOT
| UN proper shipping name | Amines, liquid, corrosive, n.o.s., (Amines, N-tallow alkyltrimethylenedi-, ethoxylated) |
| Class or Division | 8 |
| Packaging group | III |
| Label(s) | 8 |
| Marine Pollutant | No |
IATA
| UN proper shipping name | Amines, liquid, corrosive, n.o.s., (Amines, N-tallow alkyltrimethylenedi-, ethoxylated) |
| Class or Division | 8 |
| Packaging group | III |
| Label(s) | 8 |
| Marine Pollutant | Yes |
IMDG
| UN proper shipping name | Amines, liquid, corrosive, n.o.s., (Amines, N-tallow alkyltrimethylenedi-, ethoxylated) |
| Class or Division | 8 |
| Packaging group | III |
| Label(s) | 8 |
| Marine Pollutant | Yes |

OSHA Hazard Communication Standard (29 CFR 1910.1 200) Hazard Class(es)
Corrosive. Combustible Liquid.
| Country | Regulatory list | Notification |
| USA | TSCA |
Included on Inventory. |
| EU | EINECS | Included on EINECS inventory or polymer substance, monomers included on EINECS inventory or no longer polymer. |
| Canada | DSL | Included on Inventory. |
| Australia | AICS | Included on Inventory. |
| Japan | ENCS | Included on Inventory. |
| South Korea | ECL | Included on Inventory. |
| China | SEPA | Included on Inventory |
| Philippines | PICCS | Included on Inventory. |
EPA SARA Title III Section 313 (40 CFR 372) Component(s) above 'de minimus' level : None.
WHMIS Hazard Classification : Combustible Liquid, Corrosive Material

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.