What to look for when purchasing, storing and using sodium hypochlorite (hypo)?

Nowadays price is the primary consideration when choosing suppliers. In many cases, however, the cheaper product will ultimately result in higher chemical costs, since higher amounts of inappropriate drug-containing hypo will have to be added to achieve the desired antiseptic effect.

When comparing the prices of products offered by different suppliers, you must first convert to the same concentration!

It is also advisable to check regularly whether the supplier is actually delivering the product of the promised active ingredient, purity and stability, and does it have supplies in the summer when demand is multiplied?

How do we express the content of hypo?

Most often, the weight of active chlorine is given in grams per litre (g / l). This means the number of grams of active chlorine in 1 litre of sodium hypochlorite solution.

Why measure active chlorine?

  • This is how we can express the oxidising power of hypo.
  • The authorities require active chlorine in both drinking and swimming pools.
  • The higher the active chlorine content of the hypo, the less should be used.
Why is the active chlorine content of the hypo different at the time of manufacture and upon arrival at the user?
  • Due to the nature of the substance, it decomposes. The longer the chain of commerce, the more time elapsed between production and use and the greater the difference in concentration between manufactured and delivered product.
  • Due to improper dilution in the distribution chain as dilution impurities may be added to the hypo solution.
  • Other Dangers of Non-Professional Dilution:
  • Dilution changes the pH of the solution, which can greatly reduce the stability of the material. Contaminants that are harmful to health may enter the solution.
  • The active ingredient content is below the active ingredient content stated on the quality certificate.
Why does the hypo break down and what does the rate of decay depend on?

Degradation of the hypo is a natural process, but its rate should be minimised during storage. The decomposition process reduces the disinfectant effect of hypo and creates unwanted by-products.

Choosing the right specification of sodium hypochlorite, proper storage and handling of the solution can ensure stability for months.

Higher concentrations of solution decompose faster:

  1. Example: 120 g / L hypo solution decomposes 4 times faster than 60 g / L solution at the same temperature and pH.
  2. Example: At 37 Co,
    the 60 g / l hypo decays to 84 g / l and
    the 125 g / l hypo to 87.5 g / l in 60 days

In the summer, it is better to buy a lower active chlorine-containing hypo, choosing the product according to its purpose.

Although transport costs seem to be higher, higher concentrations lead to less and less profits over the shelf life and only exacerbate degradation problems.

Effect of temperature:

  • At a temperature of 5 ° C, if the solution does not contain heavy metals, decomposition is almost completely eliminated.
  • Sodium hypochlorite stored at 35Co decomposes 14 times faster than that stored at 15Co.
  • The thermal insulation of the storage tank / container is important!

Effect of direct sunlight on the breakdown of the hypo

  • The heat accelerates the decomposition. Enough 10 Co to increase three to four times the decay rate.
  • It emits UV light, which initiates a photochemical reaction and increases the rate of degradation.

Keep this product away from direct sunlight in a cool place. If storage is not possible in a closed or sun-protected room, it is advisable to insulate the container and / or paint it in a light color to reduce the absorption of sunlight!

Proper pH adjustment is an important factor in the stability of the solution.

  • If the pH is not in the optimum range, the reversible reactions become one-way and the decomposition is accelerated. Minimising contaminants during production and storage is very important for the stability of the sodium hypochlorite solution.
Why are Vinyl Kft's products of good quality?
  • They are made from high quality raw materials using a carefully controlled technological process.
  • We provide our customers with fresh, active chlorine-containing products as required by the specification.
  • Their quality meets the EU and national water hygiene requirements and the requirements of the relevant MSZ EN standard.
  • For the disinfection of drinking baths and swimming pools, they are licensed by the OTH for biocides.
  • We can also manufacture products to meet your specific customer requirements.
Our custom made product is the Special Hippo

It is made by special procedure, on individual order. Specialised hypo made from high purity raw materials, special process, small size, contains no by-products and remains stable for a long time.

The use of Special Hypo is especially recommended in places where extra purity is required, or where it has to stand for a long time due to slow weight loss, as its degradation is significantly slower than traditional products.

Its quality is in compliance with EU and domestic water hygiene requirements and the requirements of the relevant MSZ EN standard, we have OTH approval for its use. We can also take into account individual customer needs in the production.

Suggestions for purchasing and using hypo

  • Choosing the product with the specification that is appropriate for the application.
  • Checking the existence of the necessary licenses for the use
  • Quality control upon receipt of product
  • Control and monitoring of chemical consumption
  • Proper storage
  • Check the active chlorine content during storage and monitor for decomposition
  • Avoid dilution locally unless we can do it properly and under pH control
  • Only buy from a trusted manufacturer or dealer!
Special hazards to watch out for when using industrial hypo
  • 1. Generally, sodium hypochlorite should not be mixed with other chemicals as it may release hazardous or toxic gases during violent reactions. It is especially dangerous to mix:
    • With acids such as hydrochloric acid, sulfuric acid because it releases chlorine gas
    • ammonia
    • With organic compounds
    • With cyanides, sulfides
  • 2. Irritates:
    • his eyes
    • skin
    • respiratory system
    • nose, throat

Always wear protective equipment including: goggles, face mask, gloves and protective clothing.

Carefully read the safety data sheet and follow the instructions!

We are at the disposal of our dear customers with complete information, advice and other products.

Vinyl Ltd. 1097 Budapest, Illatos út 19-23.

tel: 06 1 348 0708, e-mail: ertekesites@vinyl.hu

Expertise and Reliability!