Dry Acid Scale Remover DSR-10

DRY ACID SCALE REMOVER – is a non-volatile, activated dry powder acid. Inhibited to protect metal surfaces, including aluminum. In dry foam, Dry Acid gives off no corrosive fumes. Spills are swept up without damage to any surface. Dry Acid is safer than hydrochloric (muriatic) acid, and nearly as strong. Removes one pound of scale for every two pounds of acid. PH indicator strips are included. Safer and easier to handle than liquid scale removers. It contains corrosion inhibitors, wetting, and anti-foaming agents. Safe for use on metal surfaces.

DRY ACID SCALE REMOVER

Powerful, Safe, and Easy-to-Use Scale Removal Solution

DRY ACID SCALE REMOVER is a non-volatile, activated dry powder acid formulated to effectively remove scale from HVAC systems. Its innovative dry foam formulation eliminates corrosive fumes, making it safer to handle than traditional liquid scale removers.

Key Features and Benefits:
  • Non-Volatile Dry Powder: Safe and easy to handle, without the hazards of liquid acids.
  • No Corrosive Fumes: Reduces the risk of exposure to harmful chemicals.
  • Safer than Hydrochloric Acid: Provides effective scale removal without the harshness of muriatic acid.
  • Easy to Handle: Convenient dry powder format for simple application.
  • Safe for Metal Surfaces: Protects metal surfaces, including aluminum.
  • PH Indicator Strips Included: Monitor the neutralization process for optimal results.

Powerful Scale Removal: Removes up to one pound of scale per two pounds of acid, ensuring efficient cleaning.

Versatile Applications: Suitable for a wide range of HVAC systems and components.

DRY ACID SCALE REMOVER is the ideal choice for professionals and DIY enthusiasts seeking a safe, effective, and easy-to-use scale removal solution. Its innovative formula and powerful cleaning action make it a valuable asset for maintaining optimal HVAC system performance.

 

Part Number;                 Size
  • DSR-10                             10 lb 4/cs
  • DSR-50                             50 lb pail

 

Directions:
  1. Effective Scale Removal for HVAC Systems

    1. Drain and Flush: Completely drain and flush the HVAC system to remove existing water.
    2. Remove Debris: Remove any loose debris or particles from the system.
    3. Stop Bleed-Off: Close any bleed-off valves to prevent water loss.
    4. Add Acid: Fill the system with fresh water and then add two pounds of DRY ACID SCALE REMOVER for every 10 gallons of water.
    5. Circulate: Circulate the acid solution throughout the system until all scale is removed.
    6. Monitor pH: Use the included pH indicator strips to determine if the acid solution is neutralized or if more acid is needed.
    7. Multiple Dosages: For severely scaled systems, multiple doses may be required. However, do not exceed two doses per water cycle.
    8. Repeat if Necessary: If all scale is not removed after two doses, drain the system, repeat the procedure, and flush out the acid before refilling with fresh water.

    Important Note: Do not dispose of the cleaning solution on lawns or shrubs.

 

DANGERS & PRECAUTIONS:

Read and understand the product’s label and Safety Data Sheet. Causes severe skin burns and eye damage. May be corrosive to metals. Do not breathe mists. Wash hands thoroughly after handling. Do not get on clothes or skin. Wear face shield, eye protection, protective gloves, and protective clothing. Do NOT handle or use this product until all safety precautions have been read and understood. Keep out of the reach of children. Provide general, adequate ventilation.

 

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SDS

DRY ACID SCALE REMOVER SDS – Download

Identification & Supplier Details

Product Name (GHS Identifier) Dry Acid Scale Remover
Product Number / Brand DSR-10, DSR-50 / Vapco
Recommended Use Activated dry powder acid
Supplier Name / Address Vapco Products, Inc. / 401 Marshall Road, Valley Park, Missouri 63088, United States
Telephone / Email (636) 923-2121 / [email protected]
Emergency Phone Number (800) 255-3924

Hazard Identification & Composition

GHS Classification (OSHA)
  • Eye damage/irritation, Cat. 2A
  • Corrosive to metals, Cat. 1
  • Skin corrosion/irritation, Cat. 2
Signal Word Warning
Hazard Statement(s)
  • H290: May be corrosive to metals
  • H315: Causes skin irritation
  • H319: Causes serious eye irritation

Hazardous Components

Chemical Name CAS No. Concentration (% weight)
Sulfamic acid 5329-14-6 90 – 100 %

Physical & Chemical Properties

Physical State / Appearance Solid / Powder
Color / Odor Off-white / No distinct odor
Flammability Not considered a flammable solid by OSHA.
Solubility Completely soluble in water
Vapor Pressure / Evaporation Rate >18 / <0.8 (Slow)
Relative Vapor Density (Air=1) 1
Melting Point / Boiling Point / pH N/D / N/D / N/A

Stability & Reactivity

Reactivity Chemically active metals and acids. May be corrosive to metals.
Chemical Stability / Hazardous Reactions Stable under normal conditions of use. None known for hazardous polymerization.
Conditions to Avoid Do not mix with strong acids.
Incompatible Materials Strong alkalis.
Hazardous Decomposition Products Oxides of nitrogen and sulphur.

Toxicological Information

Acute Toxicity Data (Sulfamic acid) LD50 Oral – Rat: 3160 mg/kg
LD50 Oral – Mouse: 1312 mg/kg
Skin/Eye Damage Causes severe burns, irritation, and may result in loss of sight. Burning may not be immediately painful or visible.
Sensitization / STOT-Single Exposure May cause severe irritation, chemical burns, upper respiratory damage, and pulmonary edema. Harmful if inhaled.
Mutagenicity / Carcinogenicity / Reproductive Toxicity Not classified.
STOT-Repeated Exposure Dermatitis may occur due to long-term irritation.
Ingestion Risk Exposure may be harmful or fatal. Causes severe gastrointestinal irritation and burns to the digestive tract.

First-Aid Measures

General Advice Never give anything by mouth to an unconscious person. Seek medical advice if unwell.
If Inhaled Remove person to fresh air. Keep comfortable for breathing. Get medical advice/attention.
In Case of Skin Contact Immediately drench affected area with water for at least 15 minutes. Remove contaminated clothing. Obtain medical attention if irritation persists.
In Case of Eye Contact Immediately rinse with water for at least 15 minutes. Remove contact lenses if present. Continue rinsing. Obtain medical attention if irritation persists.
If Swallowed Rinse mouth. Do NOT induce vomiting. Obtain medical attention.
Note to Physician The absence of visible signs or symptoms of burns does not reliably exclude the presence of actual tissue damage.

Fire-Fighting & Accidental Release Measures

Suitable Extinguishing Media Water spray, fog, carbon dioxide (CO2), alcohol-resistant foam, dry chemical, or sand. Use media appropriate for surrounding fire.
Specific Hazards (Fire) Reactivity with chemically active metals, acids, nitrogen oxide(s), and sulphur oxide(s).
Firefighting Actions Do not breathe fumes or vapors. Wear NIOSH-approved Self-Contained Breathing Apparatus (SCBA).
Personal Precautions (Spill) Do not get in eyes, on skin, or on clothing. Do not breathe vapors/mist. Equip cleanup crew with proper PPE.
Containment & Cleanup Ventilate the area. Contain any spills with dikes or absorbents. Clean up spills immediately. Transfer material to a suitable container for disposal. Absorb spillage to prevent material-damage (H290).

Handling, Storage & PPE

Precautions for Safe Handling Avoid contact with skin, eyes and clothing. Wash hands thoroughly after handling. Handle in accordance with good industrial hygiene and safety procedures.
Conditions for Safe Storage Store in a dry, cool place. Keep only in original container. Store in a corrosive resistant container with a resistant inner liner.
Incompatible Materials for Storage Strong alkalis.
Eye/Face Protection Chemical safety goggles.
Skin/Body Protection Wear protective gloves (chemical resistant materials and fabrics) and suitable protective clothing.
Respiratory Protection Use a NIOSH-approved Self-Contained Breathing Apparatus (SCBA) whenever exposure may exceed established Occupational Exposure Limits.

Transport & Regulatory Information

Transport Information (DOT, IMDG, IATA)

UN Number UN2967
Hazard Class 8 (Corrosive)
Packing Group III
Proper Shipping Name Sulfamic acid

Regulatory Information

US EPA TSCA Inventory Sulfamic acid (5329-14-6) is listed.
New Jersey Right To Know SULPHAMIC ACID (5329-14-6) is listed.

Disposal & Ecological Information

Product Disposal / Waste Treatment Dispose of contents/container in accordance with local, regional, national, and international regulations. This material, as supplied, is hazardous waste (U.S. EPA 40CFR 261).
Sewage Disposal Avoid release into the environment. Keep out of sewers and waterways.
Toxicity (Aquatic) Toxic to aquatic life. Sulfamic acid LC50 (Pimephales promelas) is 70.3 mg/l (96 hrs).
Persistence and Mobility This product is biodegradable and mobile in soil.

Disclaimer & Preparation Information

Prepared By Jessica Wilson
Date Prepared 3-13-2025
Disclaimer Summary Information is believed accurate but provided without warranty. Final determination of suitability is the sole responsibility of the user. Manufacturer will not be responsible for loss, injury, or expense arising from improper use.