Sodium bisulfate , also known as sodium hydrogen sulfate , is a sodium salt of bisulfate anion, with the molecular formula NaHSO 4 . Sodium bisulfate is an acid salt formed by the partial neutralization of sulfuric acid by the equivalent of a sodium base, usually in the form of sodium hydroxide or sodium chloride. It is a dry granular product that can be shipped and stored safely. The anhydrous form is hygroscopic. The sodium bisulfate solution is acidic, with a 1M solution having a pH of about 1.
Video Sodium bisulfate
Production
One production method involves mixing the amount of stoichiometry of sodium hydroxide and sulfuric acid which reacts to form sodium bisulfate and water.
- NaOH H 2 SO 4 -> NaHSO 4 H 2 O
The second production method involves reacting sodium chloride (salt) and sulfuric acid at high temperatures to produce sodium bisulfate and hydrogen chloride gas.
- NaCl H 2 SO 4 -> NaHSO 4 HCl
The liquid sodium bisulfate is sprayed and cooled to form a solid bead. The hydrogen chloride gas is dissolved in water to produce hydrochloric acid as a useful coproduct of the reaction. Sodium bisulfate is also produced as a by-product of the production of many other mineral acids by reaction of its sodium salt with excess sulfuric acid:
- NaCN H 2 SO 4 -> NaHSO 4 HCN
- NaNO 3 4 -> NaHSO 4 HNO 3
- NaClO 4 4 -> NaHSO 4 HClO 4
In many cases, the resulting acid has a lower boiling point than the reactant and is separated from the reaction mixture by distillation.
There are only two producers in the US, one of which is Jones-Hamilton Co., which uses the sulfuric acid/sodium chloride process, which results in anhydrous form. Another supplier, Jost Chemical, used the method of sodium hydroxide/sulfuric acid, which produced monohydrate.
Maps Sodium bisulfate
Usage
Sodium bisulfate is used primarily to lower the pH. For technical level applications, used in metal finishing, cleaning products, and for lowering the pH of water for effective chlorination in swimming pools and hot tubs. Sodium bisulfate is also approved by AAFCO as a general-use feed additive, including animal companion foods. It is used as a urine acidifier to reduce urinary stones in cats.
It's very toxic to at least some echinodermata, but quite harmless to most other life forms; sodium bisulfate is used in controlling outbreaks of crown-of-thorns starfish.
In jewelry making, sodium bisulfate is the main ingredient used in many preservation solutions to remove the oxidation layer from the surface, which occurs after heating. Sodium bisulfate is the main active ingredient in crystal toilet cleaners, Vanish and Sani-Flush, both of which are now discontinued.
In the textile industry, it is sometimes applied to velvet fabrics made with the support of silk and a stack of cellulose-based fibers (rayon, cotton, hemp, etc.) To create "fatigue velvet": sodium bisulfate, when applied like a cloth and heated, cellulose-based becomes brittle and flaking, leaving the burned-out area in the finished material, usually in an attractive pattern.
Sodium bisulfate is an active ingredient in some poultry manure treatments used to control ammonia. Sodium bisulfate has also been shown to significantly reduce Campylobacter and Salmonella concentrations in chicken houses.
In food
Sodium bisulfate is used as a food additive for yeast cake mixture (making them rise) as well as used in meat and poultry processing and recently in the prevention of fresh product prevention. Sodium bisulfate is generally considered safe (GRAS) by the FDA. Food grade products also meet the requirements set forth in the Food Chemicals Codex. This is denoted by E E514ii number in the EU and also approved for use in Australia, New Zealand, Canada and Mexico. where it is listed as additive 514. Food grade sodium bisulfate is used in various food products, including beverages, sauces, sauces, and stuffing. It has many synonyms including bisulfate soda, sodium sulfuric acid, mono sodium hydrogen sulfate, sodium hydrogen sulfate, sodium hydrosulfate, and sodium sodium salt (1: 1).
Sodium bisulfate is considered natural by the Grocery Manufacturers Association (GMA) because it is made of minerals. No artificial or synthetic materials are used in manufacture. No covalent bonds are broken or formed in the manufacturing process, therefore not synthetic.
Sodium bisulfate lowers the pH without sour taste and has been used in citric acid, acid or phosphate places and can also be used as an anti-browning agent.
References
External links
- Food Chemicals Codex
Source of the article : Wikipedia
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