CALCIUM BISULFITE

Calcium hydrogen sulfite = Calcium bisulfite

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Identifiers:

CAS Number :13780-03-5 ChemSpider : 24475 ECHA InfoCard : 100.034.007 E number :E227 (preservatives) PubChem CID :26268 RTECS number :EV9294500 UNII :SNM7K02JP2 CompTox Dashboard :DTXSID50889620

Calcium hydrogen sulfite, solution appears as a colorless to yellow aqueous solution with an odor of sulfur dioxide. Corrosive to metals. Calcium bisulfite (calcium bisulphite) is an inorganic compound which is the salt of a calcium cation and a bisulfite anion. Calcium bisulfite may be prepared by treating lime with an excess of sulfur dioxide and water. As a food additive Calcium bisulfite is used as a preservative under the E number E227. Calcium bisulfite is an acid salt and behaves like an acid in aqueous solution. Calcium bisulfite is used in the sulfite process for producing paper from wood chips.

Description Calcium disulfonate belongs to the class of inorganic compounds known as alkaline earth metal oxides. Calcium hydrogen sulfite is inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is an alkaline earth metal. Based on a literature review very few articles have been published on calcium disulfonate

The hydrogen sulfite, Ca(HSO3)2, is made by the action of sulfur dioxide on a slurry of Ca(OH)2. Calcium hydrogen sulfite’s aqueous solution under pressure dissolves the lignin in wood to leave cellulose fibres and thus finds considerable application in the paper industry. Calcium hydrogen sulfite is a yellowish liquid with an odor of sulfur dioxide. Calcium hydrogen sulfite is also known as calcium bisulfite. Calcium hydrogen sulfite is produced from sulfurous acid and limestone. There are two grades of calcium hydrogen sulfite: food grade and technical grade. These grades of calcium hydrogen sulfite find application in food & beverage, textile, pulp & paper, water treatment, and other industries. Food-grade calcium hydrogen sulfite is used as a preservative in beer, canned fruits & vegetables, juices, jams, and pickles, among others. In the food industry, calcium hydrogen sulfite act as preservative as Calcium hydrogen sulfite decreases the level of oxygen in the packaged food, thereby increasing its shelf life of the product. calcium sulfite Ca(HSO3)2 obtained as a yellowish solution usually containing free sulfur dioxide by reaction of sulfur dioxide with limestone in the presence of water or with calcium hydroxide and used in the sulfite process for making wood pulp and as a disinfectant and antichlor called also bisulfite of lime, calcium hydrogen sulfite The hydrogen sulfite, Ca(HSO3)2, is made by the action of sulfur dioxide on a slurry of Ca(OH)2. Calcium hydrogen sulfite aqueous solution under pressure dissolves the lignin in wood to leave cellulose fibres and thus finds considerable application in the paper industry.

Description Now more commonly known as calcium hydrogensulfite, Ca(HS03)2 is a compound known only in solution. The colorless aqueous solution smells like sulfur dioxide and is made by dissolving calcium sulfite in aqueous S02 solution, or by passing S02 through calcium hydroxide suspensions. Calcium hydrogen sulfite is used in large amounts to make cellulose by the sulfite process, Calcium hydrogen sulfite is also used to disinfect barns, as an antiseptic in medicine, and as a preservative.

Chemical Properties solution of calcium sulfite in an aqueous solution of sulfur dioxide; yellowish liquid; used in bleaching textiles

Uses As germicide, preservative, and disinfectant; for washing (1:1000) casks in brewing to prevent souring and cloudiness of beer and to prevent secondary fermentation; as antichlor in bleaching fabrics; largely in manufacture of sulfite cellulose from wood for paper-making.

Safety Profile A poison via ingestion. Strong irritant via skin and eye contact, ingestion, and inhalation. Spontaneously combukible. When heated to decomposition it emits toxic fumes of SOx See also SULFITES and SULFUROUS ACID

Calcium bisulfite Preparation Products And Raw materials Raw materials Calcium hydroxide Preparation Products Sodium lignosulfonate

Functions: Binder / Stabilizer Retains the physical characteristics of food/cosmetics and ensure the mixture remains in an even state. Preservative Prevents and inhibits the growth of unwanted microorganisms which may be harmful Calcium Hydrogen Sulphite is a food additive with E number E227 and used as an antimicrobial synthetic preservative in food products. Calcium hydrogen sulfite can also be used as a firming agent and disinfectant. Calcium hydrogen sulfite is a calcium salt of sulphurous acid. It works as a firming agent due to the presence of calcium (especially in canned vegetables).

Food uses of calcium hydrogen sulfite: Beer Canned fruits Canned vegetables Jams, jellies Non food uses of calcium hydrogen sulfite: Wood pulp industry

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NOTES Calcium hydrogen sulfite uses and applications include: Antichlor in bleaching textiles; paper pulp (dissolving lignin) preservative; bleaching sponges; hydroxylamine salts; germicide; disinfectant; preservative, antioxidant in foods

CLASS Specialty Chemicals

FUNCTIONS Preservative INDUSTRY Textiles

Introduction Now more commonly known as calcium hydrogensulfite, Ca(HS03)2 is a compound known only in solution. The colorless aqueous solution smells like sulfur dioxide and is made by dissolving calcium sulfite in aqueous S02 solution, or by passing S02 through calcium hydroxide suspensions. Used in large amounts to make cellulose by the sulfite process, it is also used to disinfect barns, as an antiseptic in medicine, and as a preservative.

Computed Properties Molecular Weight : 202.2 Hydrogen Bond Donor Count : 2 Hydrogen Bond Acceptor Count: 8 Rotatable Bond Count : 0 Exact Mass: 201.8918710 Monoisotopic Mass: 201.8918710 Topological Polar Surface Area: 159 Å² Heavy Atom Count : 9 Formal Charge: 0 Complexity :24.8 Isotope Atom Count : 0 Defined Atom Stereocenter Count : 0 Undefined Atom Stereocenter Count : 0 Defined Bond Stereocenter Count :0 Undefined Bond Stereocenter Counti: 0 Covalently-Bonded Unit Count : 3 Compound Is Canonicalized :Yes

Predicted Properties logP : -0.95 pKa (Strongest Acidic) :-2 Physiological Charge :-1 Hydrogen Acceptor Count: 3 Hydrogen Donor Count: 1 Polar Surface Area: 57.2 Å² Rotatable Bond Count: 0 Refractivity: 10.88 m³·mol⁻¹ Polarizability: 5.31 Å³ Number of Rings: 0 Bioavailability: Yes Rule of Five: Yes Ghose Filter : No Veber’s Rule: No MDDR-like Rule: No Chemical Formula:CaH2O6S2 IUPAC name: calcium disulfonate InChI Identifier: InChI=1S/Ca.2H2O3S/c;2*1-4(2)3/h;2*4H,(H,1,2,3)/q+2;;/p-2 InChI Key: YDGNSMQWAPGGTH-UHFFFAOYSA-L Isomeric SMILES: [Ca++].[O-]S(=O)=O.[O-]S(=O)=O Average Molecular Weight: 202.22 Monoisotopic Molecular Weight: 201.891870331

Classification Description Belongs to the class of inorganic compounds known as alkaline earth metal oxides. Calcium hydrogen sulfite is inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is an alkaline earth metal. Kingdom: Inorganic compounds Super Class: Mixed metal/non-metal compounds Class: Alkaline earth metal organides Sub Class: Alkaline earth metal oxides Direct Parent: Alkaline earth metal oxides Alternative Parents Inorganic oxides Inorganic calcium salts Substituents Alkaline earth metal oxide Inorganic calcium salt Inorganic oxide Inorganic salt

Name:Calcium Hydrogen Sulfite Alias:Calcium Bisulfite Formula:Ca(HSO3)2 Molar Mass:202.2203

Ca(HSO3)2 is a white solid at room temperature, density 1.06 g/cm3. It is hazardous to human and the environment, and soluble in water. Ca(HSO3)2 is easy to decompose after heating.

CAS No.: 13780-03-5 Product Name : Calcium bisulfite Molecular Formula: CaH2O6S2 Molecular Weight : 202.2 g/mol IUPAC Name : calcium;hydrogen sulfite Standard InChI: InChI=1S/Ca.2H2O3S/c;2*1-4(2)3/h;2*(H2,1,2,3)/q+2;;/p-2 Standard InChIKey: LVGQIQHJMRUCRM-UHFFFAOYSA-L SMILES: OS(=O)[O-].OS(=O)[O-].[Ca+2] Canonical SMILES: OS(=O)[O-].OS(=O)[O-].[Ca+2] Physical Description: Calcium hydrogen sulfite, solution appears as a colorless to yellow aqueous solution with an odor of sulfur dioxide. Corrosive to metals.

Description Calcium hydrogen sulfite, solution appears as a colorless to yellow aqueous solution with an odor of sulfur dioxide. Corrosive to metals.

Chemical & Physical Properties Density: 1.06(15ºC) Melting Point: 201.5-203 °C(lit.) Molecular Formula: CaH2O8S2 Molecular Weight: 234.21900 Exact Mass: 233.88200 PSA: 171.62000 LogP: 0.17080

Common Name Calcium bisulfite CAS Number : 13780-03-5 Molecular Weight : 234.21900 Density: 1.06(15ºC) Boiling Point: N/A Molecular Formula: CaH2O8S2 Melting Point: 201.5-203 °C(lit.) MSDS: N/A Flash Point: N/A

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Origin: Calcium salt of sulphurous acid.

Function & characteristics: Calcium bisulfite is a greenish fluid, which reacts to form calcium sulphite. In acidic conditions Calcium bisulfite forms sulphurous acid, which acts as a preservative. Calcium bisulfite is used as a preservative in beer production. Calcium bisulfite increases the firmness of canned vegetables (due to the calcium).

Products: Beer Acceptable Daily Intake: Up to 0.7 mg/kg body weight.

Side effects:

Calcium bisulfite is reduced in the liver to harmless sulphate and excreted in the urine. People who are intolerant towards natural sulphites should also avoid added sulphites (E221-228).

Dietary restrictions: None – sulphur dioxide and sulphites can be consumed by all religious groups, vegans and vegetarians.

Is calcium hydrogen sulfite high in histamine? Calcium Hydrogen Sulfite and other sulfites may trigger reactions in particularly sensitive patients who follow low histamine diets. They might also serve as histamine liberators; in other words, they may trigger the release of the body’s natural histamine. Every person has unique dietary triggers. Your reaction to calcium hydrogen sulfite may be different than someone else’s.

Calcium Bisulfite The primary compound—chemical formula Ca(HSO3)2—in the sulfite process, the older and less used of the two primary chemical pulping processes. Calcium bisulfite is produced by combining sulfurous acid with limestone. Cooking wood chips in the combination of sulfurous acid and calcium bisulfite dissolves the lignin in the wood and liberates the cellulose fibers. The sulfite process is not well-suited to pulping highly resinous wood, such as pine trees. Calcium bisulfite’s original calcium-based chemicals are unrecoverable, and pollution laws have resulted in newer substances being utilized, such as sodium, magnesium, and ammonia bases, the active chemical in the sulfite process being the bisulfite ion (HSO3-). These bases are easier to recover. The sulfite process is an acidic pulping process, and exists in contrast to the alkaline soda process.

Stereochemistry : ACHIRAL Molecular Formul : Ca.2HO3S Molecular Weight: 202.2225 Optical Activity: NONE Defined Stereocenters: 0 / 0 E/Z Centers: 0 Charge 0

Calcium bisulfite (calcium bisulphite) is an inorganic compound which is the salt of a calcium cation and a bisulfite anion. Calcium bisulfite may be prepared by treating lime with an excess of sulfur dioxide and water. As a food additive it is used as a preservative under the E number E227. Calcium bisulfite is an acid salt and behaves like an acid in aqueous solution. Calcium bisulfite is used in the sulfite process for producing paper from wood chips.

Description Calcium bisulphite is an inorganic compound which is the salt of a calcium cation and a bisulfite anion. Calcium bisulfite may be prepared by reacting lime with an excess of sulfurous acid, essentially a mixture of sulfur dioxide and water. As a food additive it is used as a preservative.

Chemical Properties CAS Number 13780-03-5 EINECS Number 237-423-7 IUPAC Name Calcium Hydrogen Sulfite Molar Mass 202.22 g/mol Molecular Formula CaH2O6S2 RTECS Number EV9294500 Synonyms Calcium Bisulfite;Calcium Hydrogensulphite

Synonyms CALCIUM BISULFITE Calcium hydrogen sulfite 13780-03-5 Sulfurous acid, calcium salt (2:1) calcium;hydrogen sulfite UNII-SNM7K02JP2 SNM7K02JP2 Calcium bisulfite, solution Calcium hydrogensulphite EINECS 237-423-7 Calciumhydrogensulfit UN1923 Calcium hydrogensulfite DTXSID50889620 Calcium sulfite (Ca(HSO3)2) (7CI) Calcium dithionite or calcium hydrosulfite Q419619 Calcium dithionite or calcium hydrosulfite [UN1923] [Spontaneously combustible]

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