Construction Chem-67

Technical Details of CONCRETE CURE 42

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CONCRETE CURE 42 CONCRETE CURING AGENT manufacturer, exporter and supplier Mumbai, Gandhidham, Chennai, Visakhapatnam, Kolkata, Fujairah, Dubai, Sharjah, Abudhabi, Ajman, Muscat Oman Barka, Nairobi Kenya Africa, Canada

Concrete Accelerator Fast Setting based on refined silicates, Aluminium sulfate, Calcium nitrite and synthetic plasticizer. Which helps Corrosion protection of steel. Floor screed and topping. Concrete and floor screed repairs.Waterproofing and tanking of basements and Bonding of old concrete to new concrete.

Calcium nitrite based corrosion inhibitors do accelerate the setting times of concretes. 

It's a very strong bonding agent for mortars and concrete to bond with old concrete, stone, steel, brick etc. It is a superior waterproofing product. It's is also a strong corrosion inhibitor.

Concrete Accelerator Fast Setting affects only the Portland cement portion of the mix and is not an antifreeze for the water portion. Concrete Accelerator Fast Setting has no effect on straight lime mortars and should not be used with oxychloride stuccos. Use Concrete Accelerator Fast Setting directly from the factory-sealed container; do not dilute. Avoid direct contact. Ingestion may cause moderate to severe irritation of the digestive tract. Read and follow complete application information and precautions on container prior to use. Consult Safety Data Sheet for complete health and safety information.

Concrete Accelerators Products manufacturer and supplier and Exporter.  Cement Setting/ Hardening Accelerator.

Difference between Cement Retarder and Cement Accelerator

Retarding admixtures : Generally used in HOT Weather.

Retarding admixtures helps and work as water reducing agent and Cemenrt retarder keep concrete workable during placement and delay the initial set of concrete. Chemically retarder slow the setting rate of concrete, are used to counteract the accelerating effect of hot weather on concrete setting. High temperatures often cause an increased rate of hardening which makes placing and finishing difficult. Retarders keep concrete workable during placement and delay the initial set of concrete. Most retarders also function as water reducers and may entrain some air in concrete. Retarder use for increase setting time of cement.

Accelerating admixtures : Generally used in COLD Weather.

Accelerators make concrete set faster rapidly after mixing with concrete. This product can be added to a concrete batch either immediately before or during mixing to kick the set time of a batch of concrete into high gear and initiate setting time one to three times faster than normal mortar and concrete. On the other hand Accelerating admixtures increase the rate of early strength development, reduce the time required for proper curing and protection, and speed up the start of finishing operations.  Chloride Free and Accelerating Compund for Concrete and Mortar. Accelerator is use for reduce setting time.

Accelerating admixtures are especially useful for modifying the properties of concrete in cold weather.

How to Use Concrete Accelerator Fast Setting

Concrete Accelerator Fast Setting is added directly to the mix water. Reduce the amount of water by 5 - 7% to compensate for the liquid addition. For masonry mortar, two quarts (1.89 liters) of Concrete Accelerator Fast Setting for each 94 lb. (42.73 kg) bag of cement should be used. For mortar cements that are 50% Portland cement and 50% lime, one-half the amount, or one quart (950 ml) of Concrete Accelerator Fast Setting, is required.
 

Note

Concrete Accelerator Fast Setting manufacturer supplier distributor in Mumbai, Kandla, Kolkata, Vizag, Chennai, India, Fujairah, Dubai UAE, Muscat Oman, Kenya Africa. Get the best quality of Concrete Accelerator Fast Setting at a competitive price from us. We have ready stock of Concrete Accelerator Fast Setting in India, UAE Gulf, Oman, Kenya Africa. Contact us for bulk as well as small orders.

 Linear Formula: H4N2 · H2O

For water Treatment, Hydrazine Hydrate GRADE : 

Hydrazine Hydrate Amine used as Oxygen scavenger on ultra high pressure industrial sites
 

No oxygen is entering the boiler with the feed water when hydrazine is present in the water.
 

The objective is to maintain a hydrazine residual between 0.05-0.2 ppm depending on operating pressure and boiler designe. Actual consumption is determined under operating conditions.  A normal dosage is approximately 1 ltr. per day, depending of system layout.

Hydrazine is a convenient reductant because the by-products are typically nitrogen gas and water. Thus, it is used as an ANTIOXIDANT, an oxygen scavenger, and a corrosion inhibitor in water boilers and heating systems. 

Hydrazine is mainly used as a foaming agent in preparing polymer foams. 

No oxygen is entering the boiler with the feed water when hydrazine is present in the water.

Whats the use of Hydrazine Hydrate in GOLD FACTORY?

Method to precipitate the Gold with Hydrazine Hydrate : 
Recovere all gold from working area then dissolve all into Aqua Regia Solution. Leave this solution for 10 -12 hrs to complete precipitation, then Filter it out. And addition of Hydrazine hydrate 64 or 85% (liquid)  works well  to precipitate gold from  acid gold plating baths which contain HAuCl4 solution.
 

After addition of Hydrazine Hydrate you can practically see big brown spongy ball like gold getting precipitated & once all the gold in the solution has precipitated the solution at the top has lot of white foam, which indicates the end of precipitation. Finally neutralise the solution with 25% urea solution.
This will give you the necessary result in recovering pure gold.
 

We let the solution stand overnight to settle down & recover gold from it by washing it with water.

Hydrazine Hydrate also used in GOLD purifiaction factory.  Remember Hydrazine Hydrate does not work well with alkaline solution.
NOTE : You use hydrazine hydrate for gold precipitation. Don't add urea in gold chloride solution.
You can also dilute hydrazine hydrate with five parts of water, that is 1:5. Then you add it in your gold chloride solution. You can get exact value by checking your pH level of gold chloride.
Hydrazine Hydrate Reaction can be easily understand by this reaction :::

PtCl4+N2H4=Pt+N2+4HCl
4AuCl3+3N2H4=4Au+3N2+12HCl
4AgNO3+N2H4=4Ag+N2+4HNO3.
 

Hydrazine Hydrate supplier in Muscat Barka - Oman, Fujairah, Dubai, Sharjah, Abudhabi, Ajman, Mumbai, Navi Mumbai - MIDC, Kolkata, Chennai, Surat, Visakhapatnam, Gandhidham - GIDC, Kenya Nairobi, Jinja UGANDA, Kampala, Canada, Sohar Muscat, Sudan, Yemen, 

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