Solubility of citric acid in water, ethanol, n-propanol ...

Aug 25, 2013· Read "Solubility of citric acid in water, ethanol, n-propanol and in mixtures of ethanol + water, Fluid Phase Equilibria" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Fixing Spots on Concrete Countertops Caused by Acid ...

Unlike stains, etching is physical damage to the surface. An acid (either citric acid from fruit or acetic acid from vinegar-based foods) reacts with the cement paste and any calcium-based aggregate, gradually dissolving the materials and leaving a rough depression and a light-colored appearance.

Development of Sucrose and Citric Acid as the Natural ...

Therefore, further researches are needed to obtain a practical admixture for geopolymer concrete. This paper deliberates the effect of sucrose and citric acid in the polymerization process and their possibility to be used as the principal substances in the alternative admixture for geopolymer binder.

Effect of Citric Acid on Cement Hydration

Through the test of citric acid of cement paste, setting time and compression strength changes, and combined with XRD, SEM, discusses the influence of citric acid on cement hydration process. The results show that: citric acid can effectively increase the initial cement fluidity, when the content is exceed to 0.1%, the 60 min flow loss of increased gradually.

Home - Sodium Naphthalene Sulfonate; Sodium Gluconate

Concrete water reducers, retarders, and superplasticizers are admixtures for concrete, which are added in order to reduce the water content in a mixture or to slow the setting rate .. About us Shandong Wanshan Chemical Co., Ltd is one of the subsidiary factory of Shandong Wanshan Group.

USING CITRIC ACID TO CLEAN CONCRETE

USING CITRIC ACID TO CLEAN CONCRETE. Hydrochloric acid, also known as muriatic acid, has been used in the metal cleaning industry for years. This material is also commonly used as a masonry cleaner and as an etching agent for concrete, but can pose health and safety as well as environmental risks.

Development of sucrose and citric acid as the natural ...

Development of sucrose and citric acid as the natural based admixture for fly ash based geopolymer Andri Kusbiantoro*, Mohd Sobri Ibrahim, Khairunisa Muthusamy, Aizat Alias Faculty of Civil Engineering and Earth Resources, Universiti Malaysia Pahang, Gambang 26300, Malaysia Abstract Geopolymer is the state of the art binder in concrete technology.

Concrete Efflorescence - What Causes It To Appear & How To ...

What causes efflorescence on concrete floors and walls? Concrete efflorescence is a very common problem on concrete, especially decorative concrete. When moisture and water vapor migrate to the surface of hardened concrete floors, walls, and colored concrete, it carries with it calcium hydroxide.

High Range Water Reducing Powder | Sika Corporation U.S.

A third generation high range water reducing and superplasticizing powder admixture for use in concrete and mortar. It is based on Sika's patented 'ViscoCrete' polycarboxylate polymer technology. ... Compatible with other additives (i.e. citric acid). Extremely high …

How to Dissolve Concrete With Acids | Hunker

Use a brush to scrub the acid into the concrete. These are weaker acids that just might work to dissolve a sufficient amount of concrete. After these acids have soaked into the concrete for about one minute, scrape the concrete you're trying to dissolve with a sharp putty knife.

EP1622844A1 - Polycarboxylic acid concrete admixture ...

The polycarboxylic acid concrete admixture of the present invention exhibits properties such as decreasing the concrete viscosity, improving the slump-retaining ability, and suppressing bleeding water, and is improved in the ability to cement compositions or the like. The above-mentioned polycarboxylic acid concrete admixture comprises a polycarboxylic acid polymer containing a polyalkylene ...

Effect of Citric Acid on Properties of Recycled | Plaster ...

Effect of Citric Acid on Properties of Recycled - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. paper acerca del acido citrico como ayuda para reciclar el yeso comercial expocision

Citric Acid Anhydrous, USP/FCC - DudaDiesel

Citric acid anhydrous is widely used in the food, beverage, and pharmaceutical industries to impart a clean, refreshing tartness. Its prime use is as an acidulant, but it is also used as sequestrant of metal ions to give protection from the development of off-flavors and off …

Cement slurry retarders - PetroWiki

The retardation mechanism of inorganic compounds on cement hydration is different from that for the previously discussed retarders. Inorganic compounds, commonly used as cement retarders, are borax (Na 2 B 4 O 7 •10H 2) and other borates such as boric acid …

Applications and Uses of Citric Acid Anhydrous

Jul 06, 2015· Citric Acid Anhydrous E330 can be used as antioxidant and ph regulator in Agriculture/Animal Feed/Poultry feed. In Other Industries. Citric Acid Anhydrous E330 can be used in chemical cleaning, concrete admixtures, plasticizers, and a range of other applications.

Construction -Thatcher Group, Inc.

Thatcher partners with companies specializing in the manufacture, resell and distribution of qualified concrete admixture formulations. Our multi-state manufacturing facilities can custom manufacture and private label your formulations according to your exact specifications.

Eagle 1 gal. Etch and Clean for Concrete in 4:1 ...

You cannot follow the directions on the bottle and get great results if you acid stain an interior concrete floor. I diluted the etch 4 to 1 with water and used 1 1/2 bottles to clean 1800 sq. ft. I sprayed on using a pump sprayer and then scrubbed with a stiff bristle brush never allowing the floor to dry. I then sprayed the entire floor with ...

PURITY, CLARITY, TRUST - qualitychemja.com

It is odorless and has a strong acidic taste. Anhydrous citric acid is very soluble in water and freely soluble in alcohol. Storage in tight containers away from heat and humidity (75oF and 55% RH) is recommended. Citric acid is widely used in the food, beverage, and pharmaceutical industries to impart a clean, refreshing tartness.

Concrete - Wikipedia

Admixtures are materials in the form of powder or fluids that are added to the concrete to give it certain characteristics not obtainable with plain concrete mixes. Admixtures are defined as additions "made as the concrete mix is being prepared". The most common admixtures are retarders and accelerators.

OXALIC ACID USED AS CEMENT ADMIXTURE - trid.trb.org

OXALIC ACID USED AS CEMENT ADMIXTURE OXALSAEURE ALS ZEMENTZUSATZ. Test results show that the addition of oxalic acid to cement and cement and sand mortars modifies their characteristics. Two percent of cement weight is the optimum proportion of admixture. Setting acceleration caused by the acid remains within the limits recommended in ...

Pure Citric Acid Powder Food Grade FCC/USP - eBay

Citric acid, what is it and how is it used? Citric Acid is a naturally occurring preservative used in many applications including canning, flavoring, cleaning, and even photography development.As a weak organic acid, it is commonly purchased in powder form but is found in all citrus fruits including lemons, limes, oranges, and tangerines.

US8168701B2 - Google Patents

A concrete admixture composition concurrently using (A) a polycarboxylic acid type water-reducing agent for concrete, (B) a hydroxycarboxylic acid type water-reducing agent for concrete, and (C) a polysaccharide type thickening agent is offered, with the view to manufacture a high-performance and multi-functional concrete excelling in high fluidity, freshness retention, early strength ...

Using Citric Acid to Clean Concrete - paintsquare.com

Citric acid cleaning of horizontal concrete surfaces is an effective and safe procedure. For example, it has been used as an effective cleaning preparation technique on concrete floors for coating in critical areas of nuclear power plants. The South Texas