Calcium Formate can be used as organic acidifiers to improve feed palatability, sterilize feed, provide energy to body and take part in nutrient metabolism. Large quantities of studies have confirmed that adding organic acidifiers in piglet daily diet can improve pig production.

Use

Calcium formate is used within EU as an animal feed preservative. It acidifies the feed thus preventing microbe growth and increasing shelf life. About 15 g of calcium formate addition per kg of feed lowers its pH by one. 15 g/kg is the maximum recommended feed concentration within EU – this level is thought to be safe for pigs, chickens, fish and ruminants. The compound is not environmentally harmful in feed use at these levels. Calcium formate prevents the growth bacteria such as E. coli, Pseudomonas aeruginosa, Staphylococcus aureus and Enterococcus hirae in growth mediums. It also prevents the growth of fungi like Aspergillus niger and Candida albicans.

Set-Accelerator refers to an additive, which can increase the mortar strength and has no significant effect on the later strength. According to the chemical composition, it is divided into two types: organic and inorganic.The organic includes Calcium Formate , Triethanolamine, Triisopropanolamine, Urea, etc. And the inorganic includes Sulfate, Chloride and so on. The effect of different Set-Accelerators is not the same.

Calcium formate is an additive that does not have any corrosive effect on reinforcing steel. It mainly accelerates the hydration of tricalcium silicate in cement and increases the early strength of cement mortar. The effect of calcium formate on the strength of cement mortar depends mainly on the content of tricalcium silicate in the cement. The early strength is better with less tricalcium silicate.It will not attenuate the late strength of the cement mortar, and it has a certain degree of frost resistance at low temperatures.
There are two main reasons for adding the Set-Accelerator to the polymer mortar: First, some construction sites require a certain construction schedule. The polymer mortar will have higher strength in the early stage and  meet the external force requirements by adding the Set-Accelerator.Second, the strength of the mortar increases slowly when the temperature is low, moreover, the lower the strength when the ice is frozen, the greater the damage to the mortar.The frost damage of the mortar at an early stage of low strength can cause permanent damage to the mortar, so Set-Accelerators must be added at lower temperatures.However, even if the Set-Accelerator is added at a low temperature, the strength of the cement mortar can be reduced. The first reason is when construction is carried out in a low temperature environment, the hydration speed becomes slow and affects the efficiency of construction. When the temperature is lower than the freezing point, the water turns into ice, and the volume expands, some phenomenonprone to occur, like emptying, falling off, etc. After the water evaporates, the internal voids increase and the strength of the mortar decreases.

Secondly, the strength of mortar depends mainly on the reaction rate and reaction time of cement and water. Carrying construction at temperatures below 0°C, water freezes. Of course, the hydration reaction is an exothermic reaction with a certain hydration temperature and the cement reaction efficiency is reduced. Melting above 0°C, the hydration reaction continues, and the strength of the cement will inevitably decline from this cycle.

Calcium formate ((HCOO)2Ca) and sodium chloride (NaCl2) both appear as white crystals or tiny particles and powder, and are colourless and tasteless (odourless). It is difficult to distinguish them by physical means. So it is not surprising that low-value products such as sodium chloride are used for adulteration on the market. From the molecular formula, calcium formate consists of two carboxyl groups and one calcium ion. Because formic acid is a weak acid, hydrolysis occurs in aqueous solutions, so the aqueous solution of calcium formate should be slightly alkaline. Because formic acid has a hydrogen atom directly bonded to the carboxyl group, it has the properties of both a carboxyl group and an aldehyde group.
Sodium chloride contains only one chloride ion and one sodium ion, and is a combination of a strongly acidic anion and a strongly basic salt ion. The salt water solution is neutral. Sodium chloride does not have the properties of the carboxyl and aldehyde groups of formic acid. It is very difficult to determine whether calcium formate contains sodium chloride by the colour it produces with pH test paper. There is no shortcut to identifying calcium formate and sodium chloride. The only way is to use chemical testing methods, through the special process of calcium formate dissolving in water and hydrolysing to formic acid. You can use the silver mirror reaction or a method similar to heating copper hydroxide to calculate whether other substances have been added to calcium formate by the value of the precipitate formed.