Name: Liquid Chlorine | Buy 12.5 Sodium Hypochlorite 20Litres
SKU: VBC3003L00
Availability: InStock

Vastly improve your pool maintenance and industrial cleaning with our high-strength Liquid Chlorine 20 Litres – Sodium Hypochlorite 12.5%. Specially formulated for pool owners, pressure washing professionals, and industrial services, this powerful solution outperforms standard 10% concentrations offered by competitors. With 25% more active chlorine per litre, you’ll achieve superior results using less product, saving time and money on every job. Why Choose Viva Blu’s 12.5% Sodium Hypochlorite?

Stronger Concentration for Maximum Efficiency: At 12.5%, our liquid chlorine delivers faster and more effective disinfection compared to 10% alternatives. This means quicker algae and bacteria elimination in pools, and tougher stain removal during pressure cleaning on houses, concrete driveways, sidewalks, and patios.
Cost-Effective and Versatile: Use less to get more ? ideal for large-scale applications. Perfect for residential pool owners seeking crystal-clear water and professionals tackling mould, mildew, and grime in industrial settings like warehouses, food processing facilities, or commercial exteriors.
Eco-Conscious and Reliable: Sourced and bottled in Australia, our sodium hypochlorite is stabilised for longer shelf life and consistent performance. It’s a go-to choice for pressure washers who demand professional-grade results without the hassle of frequent reordering.
Outperforms Competitors: While others sell diluted 10% formulas, Viva Blu’s 12.5% strength ensures you get premium value. Experience reduced dilution needs, minimising water usage and environmental impact.

Key Uses of Sodium Hypochlorite 12.5%Sodium hypochlorite, commonly known as liquid chlorine or bleach, is a versatile disinfectant and cleaner trusted worldwide. Here are some top applications tailored for pool owners and industrial users:

Swimming Pool Maintenance: Shock your pool to kill bacteria, algae, and contaminants. Maintain sanitiser levels between 1-3 ppm for safe, sparkling water.
Pressure Cleaning & Surface Sanitisation: Ideal for house washing, concrete cleaning, roof treatments, and driveway restoration. Effectively removes black mould, green algae, and stubborn dirt from exteriors.
Industrial & Commercial Services: Sanitise equipment in food processing, water treatment plants, or healthcare facilities. Use for wastewater disinfection or as a bleaching agent in laundering.
Other Household & Professional Uses: Disinfect drinking water in emergencies, clean patios, or treat mildew in bathrooms and kitchens.

Useful Instructions for Safe and Effective Use Always prioritise safety when handling sodium hypochlorite ? it’s a strong chemical that requires proper care. Follow these guidelines for optimal results:

Safety Precautions: Wear protective gloves, eye goggles, and long sleeves. Work in a well-ventilated area. Avoid mixing with acids, ammonia, or other chemicals to prevent hazardous reactions. Store in a cool, dark place away from direct sunlight to preserve potency.
Dilution Ratios:
- For pool shocking: Dilute 1 litre of 12.5% solution per 10,000 litres of pool water to raise chlorine levels by about 10 ppm. Test water chemistry first.
- For pressure cleaning: Mix 1 part sodium hypochlorite with 4-10 parts water (depending on stain severity) and apply via low-pressure spray. Rinse thoroughly after 5-10 minutes.
- For general sanitisation: Use a 1:100 dilution (e.g., 100ml in 10 litres of water) for surfaces like concrete or equipment.
Application Tips: Use a chemical-resistant sprayer or pump for even distribution. For pools, circulate water for at least 4 hours post-treatment. In pressure washing, pre-wet surfaces to enhance adhesion and results.
Storage & Shelf Life: Keep tightly sealed in the original 20-litre container. Shelf life is up to 6-12 months when stored properly; check for clarity and odour before use.

SDS Hypochlorite Solution 12.5 V1

Technical Reference

Technical Specifications

Property	Detail
Chemical name	Sodium hypochlorite
IUPAC name	Sodium oxidanide; hypochlorous acid, sodium salt
Common names	Liquid chlorine, pool chlorine, bleach (industrial grade), hypo
Molecular formula	NaOCl
Molecular weight	74.44 g/mol
CAS number	7681-52-9
Concentration / Grade	12.5% w/v available chlorine (125 g/L active chlorine)
Physical state	Liquid
Appearance	Clear to pale yellow-green solution
Odour	Strong chlorine odour
Density	Approximately 1.17–1.20 g/mL at 20°C
pH (of solution, undiluted)	11.5–13.0
Solubility	Fully miscible with water in all proportions
UN number	UN 1791
ADG Class	Class 8 — Corrosive Substance; subsidiary risk Class 5.1 (Oxidising Agent)
Packing Group	Packing Group II (>10% available chlorine)
Proper shipping name	Hypochlorite solution
Flash point	Non-flammable
Shelf life	3–6 months from manufacture date under recommended storage conditions; concentration degrades over time

Applications & Use Cases

Swimming pool sanitation: Primary disinfectant for residential and commercial pools, maintaining free available chlorine (FAC) within target ranges to prevent bacterial and algal growth
Spa and hydrotherapy pool disinfection: Routine sanitisation and shock dosing in heated water environments
Algae treatment and prevention: Breakpoint chlorination to eliminate established algae blooms and oxidise organic contamination
Pressure washing and external surface cleaning: Diluted application to concrete, pavers, render, roof tiles, and cladding for mould, mildew, lichen, and algae removal
Industrial and commercial hard surface disinfection: Food processing facilities, abattoirs, dairy operations, and cool rooms — subject to appropriate rinse and food-contact protocols
Cooling tower water treatment: Microbiological control including Legionella risk management in open recirculating cooling systems, consistent with AS/NZS 3666 requirements
Wastewater and effluent disinfection: Terminal disinfection of treated wastewater prior to discharge or reuse
Irrigation water treatment: Low-dose chlorination of recycled or bore water to reduce pathogen load
Drinking water treatment: Disinfection of potable water storage tanks and distribution lines (where compliant with AS/NZS 4020 and relevant authority approvals)
Odour control: Oxidation of hydrogen sulphide and mercaptans in sewage, stormwater, and industrial waste streams
General sanitation and biofouling control: Pipe flushing, tank sterilisation, and equipment decontamination in industrial settings

Dosing Rates & Guidelines

All dosing rates below are indicative based on standard Australian industry practice. Actual dosing must be confirmed by on-site water testing and adjusted for pH, temperature, organic load, cyanuric acid level (pools), and local water quality. Dosing rates assume product at 12.5% w/v available chlorine (125 g/L).

Application	Dosing Rate	Units	Notes
Residential pool — routine maintenance	120–180 mL per 10,000 L	mL per 10,000 L pool volume	Raises FAC by approximately 1.5–2.0 mg/L. Target FAC: 1–3 mg/L. Dose in evening with pump running. Retest after 4 hours.
Residential pool — shock/superchlorination	400–500 mL per 10,000 L	mL per 10,000 L pool volume	Raises FAC by approximately 5–6 mg/L. Use to break chloramine demand, treat algae outbreak, or after heavy bather load. Do not swim until FAC falls below 5 mg/L.
Commercial pool — routine maintenance	1.5–3.0 L per 100 m³ per day	L per 100 m³/day	Highly variable; dosing pump calibration essential. Maintain FAC at 2–4 mg/L (SPASA commercial guidelines). pH must be maintained at 7.2–7.6 for optimal hypochlorous acid activity.
Algae treatment (green pool)	500–750 mL per 10,000 L	mL per 10,000 L pool volume	Pre-adjust pH to 7.2. Brush surfaces before dosing. Repeat after 24 hours if required. Filter continuously throughout treatment.
Cooling tower — routine biocide	Maintain 0.5–2.0 mg/L FAC in recirculating water	mg/L residual	Consistent with AS/NZS 3666.2 and state Legionella management plans. Continuous or intermittent dosing via metering pump. Must be logged as part of a WMP.
Cooling tower — shock dose	5–10 mg/L FAC residual for minimum 1 hour contact	mg/L residual	Used for remediation or system restart events. Adjust pH to 7.0–7.6 before dosing. Neutralise blowdown prior to discharge.
Potable water tank / line disinfection	50 mg/L FAC, 30-minute contact time	mg/L (ppm)	Equivalent to approximately 0.4 mL of 12.5% solution per 1,000 L to achieve 50 mg/L. Flush thoroughly to below 0.5 mg/L before return to service. Consult relevant water authority approval requirements.
Hard surface disinfection — general	1:50 to 1:100 dilution	v/v in water	Yields approximately 1,250–2,500 mg/L available chlorine. Apply, allow 5–10 min contact time, rinse thoroughly. Use lower concentration on sensitive surfaces.
Pressure washing — mould/algae removal	1:10 to 1:20 dilution	v/v in water	Apply diluted solution via low-pressure application, dwell 10–20 minutes, then pressure wash off. Protect surrounding vegetation and waterways. Do not apply in direct sunlight.
Wastewater disinfection (terminal)	5–20 mg/L FAC with 30-minute contact time	mg/L residual	Dose calibrated to achieve <1 CFU/100 mL E. coli in treated effluent. Turbidity must be <5 NTU for effective disinfection. Dechlorinate before discharge to environment.
Food processing surface sanitisation	100–200 mg/L available chlorine	mg/L in final solution	Post-clean sanitisation after alkaline wash and rinse. Rinse with potable water prior to food contact. Comply with food safety authority requirements and FSANZ guidelines.

Dilution Instructions

Important: Sodium hypochlorite solution is highly alkaline and oxidising. Always dilute carefully. Unlike acid dilutions, the primary risk here is oxidant splash and chlorine gas generation if contaminated equipment is used. The following procedure applies to all dilution operations.

Equipment required: Chemical-resistant measuring container (HDPE or polypropylene), clean HDPE or polypropylene mixing vessel, PPE as specified in the Safety & Handling section, dedicated measuring equipment not used for acids or other chemicals

Don full PPE first: Chemical-resistant gloves (nitrile or neoprene), safety goggles, and appropriate protective clothing before handling. Where ventilation is poor, respiratory protection is required.
Add water to the mixing vessel first: Measure the required volume of clean, cool water and add to your mixing vessel before adding the sodium hypochlorite concentrate. This reduces splashing risk and controls the concentration gradient.
Add sodium hypochlorite to water: Slowly pour or meter the measured volume of 12.5% sodium hypochlorite into the water while gently stirring. Never add water to concentrated hypochlorite in a small container.
Stir gently: Mix using a clean, dedicated stirring rod or paddle. Do not use high-speed agitation — this promotes chlorine off-gassing.
Label immediately: All diluted solutions must be labelled with chemical name, concentration, date of preparation, and hazard information before storage or use.
Use promptly: Diluted solutions degrade significantly within 24–48 hours, particularly in warm conditions or sunlight. Prepare only the volume required for immediate use.
Never mix with acid: Do not add or combine sodium hypochlorite with any acid (hydrochloric acid, muriatic acid, citric acid, pH Down products) in any vessel or container. This generates toxic chlorine gas (Cl₂) — a serious and potentially fatal inhalation hazard.
Never mix with ammonia-based products: Combining with ammonia or ammonium compounds generates chloramines, which are toxic irritant gases.
Dedicated equipment only: All measuring and mixing equipment used for hypochlorite must be kept completely separate from equipment used for acids, pool pH adjusters, or other reactive chemicals. Contamination residues can trigger violent reactions.

Chemical Compatibility

Compatible Materials (for storage and handling equipment)

High-density polyethylene (HDPE) — preferred material for drums, IBCs, and dosing lines
Polypropylene (PP)
PVC (polyvinyl chloride) for short-term contact; note that prolonged exposure may cause embrittlement
PVDF (polyvinylidene fluoride) for high-concentration dosing pump components
Viton (FKM) elastomers for pump seals and fittings
EPDM rubber (short-term)

Incompatible Materials

Metals: Attacks most metals including mild steel, copper, brass, zinc, and aluminium — causes corrosion and may generate hydrogen gas
Natural rubber: Rapidly degraded by hypochlorite
Nitrile rubber (NBR): Not suitable for prolonged contact at high concentrations
Carbon steel and galvanised steel: Severely corroded

Chemical Incompatibilities — Do NOT Mix With

Acids (hydrochloric, sulphuric, citric, acetic acid, pool pH Down): Generates highly toxic chlorine gas (Cl₂). Reaction can be violent and occurs immediately. This is one of the most common and serious chemical incidents in pool and industrial settings.
Ammonia and ammonium compounds: Produces toxic chloramine gases (mono-, di-, and trichloramine), causing severe respiratory irritation
Hydrogen peroxide: Highly exothermic reaction, rapid decomposition, oxygen release; serious fire and explosion risk
Calcium hypochlorite (granular chlorine / pool shock): Can cause violent decomposition, fire, or explosion due to incompatible impurities and concentration effects. Never mix different chlorine products.

Weight	21 kg
Dimensions	28 × 28 × 38 cm
Volume	5L, 20L

0402 981 808

0402 981 808

Liquid Chlorine – Sodium Hypochlorite 12.5%