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Topic: Sodium metabisulfite


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In the News (Fri 10 Jul 09)

  
  Sodium metabisulfite - Wikipedia, the free encyclopedia
Sodium metabisulfite or sodium pyrosulfite (American spelling; English spelling is Sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na The name is sometimes referred to as disodium (metabisulfite, etc).
Sodium metabisulfite is also used to remove chloramine from drinking water.
Sodium metabisulfite is also used to remove chloramine from drinking water after treatment, as well as many industrial uses.
en.wikipedia.org /wiki/Sodium_metabisulfite   (251 words)

  
 041. Sodium sulfite (FAO Nutrition Meetings Report Series 40abc)
Description Sodium hydrogen sulfite is a white crystalline or granular solid with an odour of sulfur dioxide.
Description Sodium metabisulfite is a white crystalline solid with an odour of sulfur dioxide.
From the long-term studies on metabisulfite in wine and water it appears that the daily administration of fluid (30 ml/kg body-weight) containing an equivalent of 450 ppm 50 SO (14 mg/kg body-weight/day) produces no adverse effects in the rat.
www.inchem.org /documents/jecfa/jecmono/40abcj16.htm   (1955 words)

  
 Treatment of arthritis and arthritic conditions with sulfites and bisulfites - Patent 4657764
Sodium bisulfite (usually shown by formula to be NaHSO.sub.3) has heretofore been used for many commercial purposes, as a preservative for prevention of the deterioration of liquids, such as food stuffs and pharmaceutical solids and solutions, and has been used medically externally for parasitic skin diseases and internally as a gastrointesinal antiseptic.
The sodium bisulfite of commerce consists chiefly of sodium metabisulfite, Na.sub.2 S.sub.2 O.sub.5, and for purposes of this invention such is believed to possess the same properties as (and to be equivalent to) the true sodium bisulfite when dissolved in an aqueous solution.
A sodium bisulfite is prepared by dissolving pharmaceutical grade (U.S.P. Grade) powdered sodium bisulfite (sodium metabisulfite) in distilled water at room temperature to form an eleven percent by weight aqueous solution.
www.freepatentsonline.com /4657764.html   (4393 words)

  
 Toxicologic Review of Selected Chemicals - 429   (Site not responding. Last check: 2007-09-10)
Sodium metabisulfite can occur either in the form of a solid or as white crystals; this substance smells like sulfur dioxide.
Inhalation of sodium metabisulfite dust is irritating to the lungs, nose, and throat (ACGIH 1986/Ex.
The Agency concludes that establishing this limit is necessary to reduce the risk of skin and eye irritation associated with exposure to high concentrations of sodium metabisulfite dust.
www.cdc.gov /niosh/pel88/7681-57.html   (305 words)

  
 Drying Fruits   (Site not responding. Last check: 2007-09-10)
Research studies have shown that pretreating with an acidic solution or sodium metabisulfite dip also enhances the destruction of potentially harmful bacteria during drying, including Escherichia coli O157:H7, Salmonella species and Listeria monocytogenes.
Sodium metabisulfite is often available at pharmacies or where wine-making supplies are sold.
Stir 1 tablespoon (21 grams) sodium metabisulfite into one quart (1000 milliliters) of cold water.
www.ext.colostate.edu /pubs/foodnut/09309.html   (1891 words)

  
 KODAK: H-24 Module 3   (Site not responding. Last check: 2007-09-10)
Part of the iodine is reduced to iodide by the sodium metabisulfite (Na) and the KODAK Bleach Accelerator PBA-1, in the sample.
Since the quantity of sodium thiosulfate used in the titration is equivalent to the quantity of unreduced iodine, the concentration of sodium metabisulfite is calculated from the difference between the total iodine and the quantity of sodium thiosulfate used in the titration.
In some mixes containing a relatively small amount of sodium metabisulfite, an appreciable portion of the sodium metabisulfite is oxidized during mixing, producing results lower than mix level.
www.kodak.com /US/en/motion/support/processing/h243/h2403ec1340.shtml   (364 words)

  
 Fixers: Fixer 24
Fixer 24 is a nonhardening sodium thiosulfate fixer which is recommended for prints.
*Sodium thiosulfate, pentahydrate (standard prismatic hypo), 240 g, can be substituted for the anhydrous form.
After the sodium thiosulfate has gone into solution, add the sodium sulfite.
www.jackspcs.com /f24.htm   (383 words)

  
 Innohep Online, Description, Chemistry, Ingredients - Tinzaparin - RxList Monographs
Sodium hydroxide may be added to achieve a pH range of 5.0 to 7.5.
Tinzaparin sodium is the sodium salt of a low molecular weight heparin obtained by controlled enzymatic depolymerization of heparin from porcine intestinal mucosa using heparinase from Flavobacterium heparinum.
The mean tinzaparin sodium anti-factor Xa activity is approximately 100 IU per milligram.
www.rxlist.com /cgi/generic2/tinzaparin.htm   (373 words)

  
 Klaron Online, Description, Chemistry, Ingredients - Sodium Sulfacetamide (lotion) - RxList Monographs
Each mL of Klaron® (sodium sulfacetamide lotion) Lotion, 10 % contains 100 mg of sodium sulfacetamide in a vehicle consisting of purified water; propylene glycol; lauramide DEA (and) diethanolamine; polyethylene glycol 400, monolaurate; hydroxyethyl cellulose; sodium chloride; sodium metabisulfite; methylparaben; xanthan gum; EDTA and simethicone.
Sodium sulfacetamide is a sulfonamide with antibacterial activity.
Chemically, sodium sulfacetamide is N'-[(4-aminophenyl) sulfonyl] acetamide, monosodium salt, monohydrate.
www.rxlist.com /cgi/generic2/klaron.htm   (107 words)

  
 12215. Change Hexavalent to trivalent chrome at high PH using sodium metabisulfite?
Sodium metabisulfite only works at pH of about 5.0 and less (and slowly at 5.0).
I have used sodium metabisulfite to neutralise hexavalent chromium solutions from a chrome plating bath.
Sodium Hydrosulphite is the material of choice but as warned keep absolutely dry.
www.finishing.com /122/15.shtml   (754 words)

  
 Reverse Osmosis (RO) Chemicals for Water Treatment   (Site not responding. Last check: 2007-09-10)
Actually, sodium metabisulfite or sodium bisulfite do not control biological growth in RO systems and have a tendency to contribute to biological fouling of the membranes.
Sodium bisulfite and sodium metabisulfite are commonly used pretreatments as an alternative to carbon filtration for the neutralization of chlorine, an important pretreatment step when operating polyamide thin-film composite membranes.
When the sodium metabisulfite or sodium sulfite contacts the chlorine, sodium sulfate and low levels of HCl are formed.
www.pwtinc.com /ro_myths.htm   (513 words)

  
 Winemaking Sulfite and Wine Stablizer are Critical to Homemade Wine
Sodium Metabisulphite tables used to suppress unwanted bacteria and wild yeast prior to fermentation and to stabilize wine during racking.
This sodium source of metabisulfite is not recommended because of possible flavor changes in wine.
The US government currently bans the use of sodium metabisulfite in all wines made in or imported into the country due to health concerns over sodium in wine.
www.leeners.com /stablizers.html   (428 words)

  
 Campden tablets - Wikipedia, the free encyclopedia
Campden tablets allow the amateur brewer to easily measure small quantities of sodium metabisulfite, so it can be used to protect against wild yeast and bacteria without affecting flavour.
In terms of usage, sodium thiosulfite is a closely related compound.
The molar mass (commonly called molecular weight or MW) of potassium metabisulfite is 222 grams per mole, while the molecular weight of sodium metabisulfite is 190 g/mol.
en.wikipedia.org /wiki/Campden_tablets   (279 words)

  
 Campden Tablets - BrewBoard
It is my understanding that typically Campden tablets are made from the sodium based metabisulfite.
In this case, both sodium (Na) and potassium (K) are metals and the metabisufilte ion (S2O5) is the nonmetal.
This issue with sodium is that it has been linked to heart health concerns.
www.brewboard.com /index.php?showtopic=6520   (595 words)

  
 Haggen WellAware
If you have been advised to limit salt or sodium intake to help control blood pressure, this guide will be helpful.
To control blood pressure, most people are advised to limit their intake sodium to less than 2,400 mg of sodium per day.
% DV means the percentage of sodium based on a daily intake value of 2,400mg per day.
www.haggen.com /WellAware_LowSodium.aspx   (190 words)

  
 SODIUM METABISULFITE   (Site not responding. Last check: 2007-09-10)
Oxides of sulfur and sodium may form when heated to decomposition.
Water, acids, alkalis, sodium nitrite, oxidizers, aluminum powder.
Sodium Bisulfite [7631-90-5]: Oral rat LD50: 2000 mg/kg.
bulkpharm.mallinckrodt.com /_attachments/msds/S4378.htm   (1159 words)

  
 Fermintaion Vessels   (Site not responding. Last check: 2007-09-10)
Sodium Metabisulfite is an antibacterial agent identical to Potassium Metabisulfite.
Campden Tablets are made of soduim metabisulfite and are used to inhibit harmful bacteria.
Once wine has been made in a barrel it it critical to prevent conditions which will encourage mold or bacterial growth.
www.mayerscidermill.com /MayersWeb/CleanerSterilizer.html   (159 words)

  
 26494. Amount of Sulfur Dioxide Generated by Sodium Metabisulfite in Acidic Solutions [Georgia]
However, knowing that sulfur dioxide is generated by contact between sodium metabisulfite and acid/water, I would think that there is some SO2 generated.
Perhaps the texts that I have read assume that the sodium metabisulfite is mixed with water prior to addition to the chromic acid and maybe the SO2 is generated in the mixing process not the treatment process.
While it is quite obvious that SO2 is given off when sodium metabisulphite is acidified, you can smell it even without much, if any acidification the real thing is how much metabisulphite is required to reduce how much chrome.
www.finishing.com /264/94.shtml   (783 words)

  
 Effect of sodium metabisulfite on hydrogen peroxide production in light-exposed pediatric parenteral amino acid ...
Effect of sodium metabisulfite on hydrogen peroxide production in light-exposed pediatric parenteral amino acid solutions.
The effect of sodium metabisulfite (MBS) on hydrogen peroxide (HP) production in model and commercial amino acid solutions exposed to phototherapy light was studied.
Model and commercial pediatric amino acid solutions were prepared such that the amino acid concentration was 1%.
www.aegis.com /aidsline/1998/dec/M98C7134.html   (482 words)

  
 SODIUM BISULFITE
5mg/m3 (TWA) for sodium bisulfite & for sodium metabisulfite, A4 Not classifiable as a human carcinogen.
Investigated as a tumorigen, mutagen and reproductive effector.
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility.
www.jtbaker.com /msds/englishhtml/s3074.htm   (1129 words)

  
 Effects of heating time and sodium metabisulfite on the nutritional value of full-fat soybeans for chicks -- Herkelman ...
Effects of heating time and sodium metabisulfite on the nutritional value of full-fat soybeans for chicks -- Herkelman et al.
Effects of heating time and sodium metabisulfite on the nutritional value of full-fat soybeans for chicks
sodium metabisulfite (SMBS) on the nutritional value of full-fat soybeans
jas.fass.org /cgi/content/abstract/69/11/4477   (404 words)

  
 MSDS :: Sodium Metabisulfite
Conditions to Avoid: air, strength deminishes with age.
TOXIC fumes of sodium oxide and sulfur dioxide.
This material releases TOXIC sulfurous gases when it decomposes with air.
www.sciencestuff.com /msds/C2657.html   (269 words)

  
 Sodium Metabisulfite, Sodium Metabisulfite Manufacturers Suppliers Exporters of Sodium Metabisulfite
Sodium Metabisulfite, Sodium Metabisulfite Manufacturers Suppliers Exporters of Sodium Metabisulfite
A complete chemical marketplace giving an insight into the Indian Chemical Industry with the latest in Trade Offers, EXIM Policies, Events, Organisations and lots more...
Exporters of calcium chloride, calcium nitrate, calcium fluoride, magnesium nitrate and sodium thiosulphate & importers of hydrogen peroxide, potassium bicarbonate and phosphonic acid and also selling agriculture chemicals & textile chemicals.
www.indianchemicalportal.com /sodium-metabisulfite.html   (120 words)

  
 Sodium metabisulfite Registration
Sodium metabisulfite - Registration, import consent and bans
Note: See Working with the Information on this Page section below for important notes about this data.
For detailed chemical information see the chemical detail page.
www.pesticideinfo.org /Detail_ChemReg.jsp?Rec_Id=PC38555   (360 words)

  
 Dechlorination design standards, Bureau of Land and Water Quality (Maine DEP)
Chemical Reaction Dose Ratios for the following dechlorinating chemicals to total chlorine residual are as follows: sulfur dioxide = 1.1 to 1; sodium metabisulfite = 1.5 to 1; sodium bisulfite = 1.5 to 1: and, sodium sulfite = 1.8 to 1.
System Capacity should be designed to provide a dosage of 2 mg/1 of sulfur dioxide at peak design flow.
On-site Chemical Storage should be provided for a minimum of 28 days, at average design flow using the appropriate system capacity dose (i.e., 2 mg/1 for sulfur dioxide, 3 mg/1 for sodium metabisulfite and sodium bisulfite or 4 mg/1 for sodium sulfite).
www.state.me.us /dep/blwq/ddds.htm   (292 words)

  
 The Austin Chronicle Columns: To Your Health
Although less appetizing, buy the dried fruit that is darker since these are less likely to have had sulfite added to them.
Read labels on the prepared foods that you buy and look for any of the six names used for sulfites: sulfur dioxide, sodium sulfite, sodium bisulfite, potassium bisulfite, sodium metabisulfite, and potassium metabisulfite.
Sulfites have been implicated as the cause of breathing problems in some subjects with asthma.
www.austinchronicle.com /gyrobase/Issue/column?oid=oid:213619   (636 words)

  
 ICSC 1461 - SODIUM DISULFITE
The substance is a strong reducing agent and reacts with oxidants.
Reacts violently with concentrated solution of sodium nitrite.
The substance decomposes on contact with acids producing sulfur oxides.
www.ilo.org /public/english/protection/safework/cis/products/icsc/dtasht/_icsc14/icsc1461.htm   (334 words)

  
 Sodium Metabisulfite, Anhydrous, Granular, Reagent, ACS * 7681-57-4
Sodium Metabisulfite, Anhydrous, Granular, Reagent, ACS * 7681-57-4
Chemical Catalog  » Alphabetical Listing of Chemicals  » S  » Sodium Metabisulfite, Anhydrous, Granular, Reagent, ACS
Sodium Metabisulphite; Disodium Pyrosulfite; Disodium Disulfite; Sodium Pyrosulfite
www.sciencelab.com /page/S/PVAR/10426/SLS3823   (63 words)

  
 Jinhe Sodium Hydrosulfite Factory Co., Ltd. sodium hydrosulfite, sodium formate, sodium metabisulfite, sodium sulfite, ...
Jinhe Sodium Hydrosulfite Factory Co., Ltd. sodium hydrosulfite, sodium formate, sodium metabisulfite, sodium sulfite, ammonium bicarbonate, citric acid, sodium sulphate
Established in April 1982, Shandong Jinhe Industrial Co., Ltd. has been a modern technological company with assets of USD 40,000,000.
Our group includes Jinhe Sodium Hydrosulfite Factory Co., Ltd., Jinhai Chemicals Co., Ltd., Sino Korea Jin-Jing...
cnjinhe.en.alibaba.com   (176 words)

  
 ULTA.com - The Ultimate Beauty Site : Multi-Tonal Color System
Kit includes Multi-tonal color base, crhme developer, illuminating powder, illuminating crhme developer, highlighting wand, crhme conditioner, instruction booklet, and two sets of colorist gloves.
Micro-Fine Illuminating Powder: Potassium Persulfate, Sodium Silicate, Sodium Persulfate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Urea, Kaolin, Magnesium Stearate, Ammonium Chloride, Diethylhexyl Sodium Sulfosuccinate, VP/VA Copolymer, Polydecene, Sodium Metasilicate, Magnesium Peroxide, EDTA, Titanium Dioxide, Cyamopsis Tetragonoloba (Guar) Gum, Sodium Carboxymethyl Starch, Sodium Benzoate.
Illuminating Creme Developer: Water, Hydrogen Peroxide, Cetearyl Alcohol, Trideceth-2-Carboxamide MEA, Ceteareth-30, Glycerin, Pentasodium Pentetate, Sodium Stannate, Tetrasodium Pyrophosphate.
www.ulta.com /control/product/~product_id=2082903   (428 words)

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