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Topic: Trisodium phosphate


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  Trisodium phosphate - Biocrawler   (Site not responding. Last check: 2007-11-07)
Trisodium phosphate, available at most hardware stores in white powder form, is a cleaning agent and degreaser, commonly used to prepare surfaces for painting (household), sold as 'TSP'.
Similar chemicals were once common in laundry and dishwashing detergents, but the phosphate, being a fertilizer, would cause algal blooms in the bodies of water that the drains led to.
A mixture of monosodium phosphate and trisodium phosphate is used as a phosphate buffer: [1] (http://members.nuvox.net/~on.jwclymer/phos.html)
www.biocrawler.com /encyclopedia/Trisodium_phosphate   (440 words)

  
  Phosphate Encyclopedia Article @ NaturalResearch.org (Natural Research)   (Site not responding. Last check: 2007-11-07)
In inorganic chemistry, a phosphate is a salt of phosphoric acid.
In agriculture phosphate refers to one of the three primary plant nutrients, and it is a component of fertilizers.
Runoff of phosphates from excessively fertilized farmland can be a cause of phosphate pollution in surface waters, leading to eutrophication (algal bloom) and consequent oxygen deficit (anoxia) for fish and other aquatic life in the same manner as phosphate-based detergents.
www.naturalresearch.org /encyclopedia/Phosphate   (482 words)

  
 Glossary : Phosphate
The complex phosphates also are a group of sequestering agents widely used in detergent formulations (except where phosphates are banned by law) because of their superiority in chemical water softening, sequestering, and other builder functions.
This is caused by the increasing concentration of phosphate as pure water permeates the membrane, and the tendency for the pH to increase on the concentrate side of the RO membrane as the salts become more concentrated.
Phosphates can always be removed by coagulation with alum (aluminum sulfate) or ferric chloride to form insoluble aluminum phosphate or iron phosphate floc particles, which are then captured with a sediment filter.
www.wqa.org /glossary.cfm?gl=1153   (1035 words)

  
 Phosphate Buffer Calculation (JavaScript)   (Site not responding. Last check: 2007-11-07)
A JavaScript that calculates the amount of monosodium phosphate and trisodium phosphate necessary to achieve a buffer at a given pH and buffer strength.
The buffer may be made by adding 0.082 g anhydrous monosodium phosphate and 0.12 g trisodium phosphate dodecahydrate to 100 ml water.
Trisodium Phosphate = [PO Using the molecular weights for anhydrous monosodium phosphate and trisodium phosphate dodecahydrate (the typical lab forms) together with the buffer strength, the actual percentages are calculated.
members.nuvox.net /~on.jwclymer/phos.html   (278 words)

  
 Trisodium phosphate - Wikipedia, the free encyclopedia
Trisodium phosphate (TSP), available at most hardware stores in white powder form, is a cleaning agent and degreaser, commonly used to prepare household surfaces for painting.
However it should not be confused with the related compounds sodium dihydrogen phosphate, also known as monosodium phosphate or MSP, and disodium hydrogen phosphate.
Similar chemicals were once common in laundry and dishwashing detergents, but the phosphate, being a fertilizer, would cause algal blooms in the bodies of water that the drains led to.
en.wikipedia.org /wiki/Trisodium_phosphate   (410 words)

  
 Production of phosphates from alkali-processes phosphate rock - Patent 4777026
The desired phosphates include di- and mono-sodium orthophosphate; pentasodium tripolyphosphate; sodium metaphosphate and its polymers; tetrasodium pyrophosphate; ammonium phosphate; sodium ammonium hydrogen phosphate, magnesium ammonium phosphate; and the corresponding potassium salts thereof.
Process according to claim 1, in which the desired phosphates are chosen from the group consisting of di-and mono- sodium orthophosphates, pentasodium tripolyphosphate, sodium metaphosphate and its polymers, tetrasodium pyrophosphate, sodium ammonium hydrogen phosphate, and corresponding potassium salts thereof; and ammonium phosphates and magnesium ammonium phosphate.
A precipitate of magnesium ammonium phosphate was formed, with the pH being controlled at 8 by additions of ammonia and carbon dioxide to avoid precipitation of magnesium phosphates at high pH, and to maintain magnesium bicarbonate in solution by the presence of ammonia.
www.freepatentsonline.com /4777026.html   (2958 words)

  
 phosphate. The Columbia Encyclopedia, Sixth Edition. 2001-05
Since calcium phosphate is only slightly soluble in water, it is not very suitable as a source of the phosphorus necessary for plant life; however, by treating it with sulfuric acid the soluble calcium acid phosphate known as superphosphate of lime is formed.
Other important inorganic phosphates include ammonium phosphate, important as a fertilizer; trisodium phosphate, used in detergents and for softening water; and disodium phosphate, used to some extent in medicine and in preparing baking powders.
Nucleotides are phosphate esters that play an important role in the conservation and use of the energy released in the metabolism of foods in the body; adenosine triphosphate is an important nucleotide.
www.bartleby.com /65/ph/phosphat.html   (309 words)

  
 DISTANCE EDUCATION PROGRAMME FOR BOILER ENGINEER
For Boiler with 117 Kg/sq.cm sodium to phosphate ratio must be at 3:1 Higher the sodium level it indicates caustic build up.The ratio of sodium to phosphate can be maintained by proper mix of mono sodium or disodium phosphate with trisodium phosphate.
Na to PO4 ratio for disodium phosphate 2:1 and for trisodium phosphate is 3:1.
When sodium phosphate is injected into the drum, the alkalinity is increased by the dissociation of phosphate to sodium hydroxide and lower phosphate.
www.indiaboiler.com /analyst_op_ans10.htm   (1068 words)

  
 [No title]   (Site not responding. Last check: 2007-11-07)
trisodium phosphate, and are available with various amounts of associated water such as five (5) moles, nine (9) moles, or twelve (12) moles of water, or the like, and any hydrated form of a base may be used as the first amount of material (2) in accordance with the invention.
As a non-limiting example, trisodium phosphate can be crushed and sieved to obtain a plurality of trisodium phosphate particles of between about 30 micron and about 250 micron.
When the trisodium phosphate is exposed as the rubbing action continues, it begins to dissolve.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=04/73033.040826&ELEMENT_SET=DECL   (10706 words)

  
 GreenConsumer.cc   (Site not responding. Last check: 2007-11-07)
Trisodium phosphate, or TSP, is available to consumers in hardware and home improvement stores in the form of white crystals or powder.
Additionally, due to the high pH and phosphate content of TSP solutions, residues from outdoor use should be captured to prevent contaminating surface water or storm drains with the runoff.
Phosphates including TSP are common additives in dish and laundry detergents, serving as "builders" to help soften water and prevent scale buildup.
www.greenconsumer.cc /managers/tsp.html   (357 words)

  
 Enhanced Phosphate Treatment for Drum-Recirculating Boilers
While phosphate had the ability to significantly curtail incidents of caustic embrittlement and caustic gouging damage, it could not totally remove the fear of having free hydroxide in excess of that associated with trisodium phosphate.
Forcing a boiler to operate with phosphate concentrations in excess of its equilibrium value means that any changes in the heat and mass transfer patterns in the high heat flux zone may result in corresponding changes in Na/PO ratios and the rates of precipitation and hydrolysis.
Phosphate is also known to affect crystalline structure of the adherent magnetite and may possibly alter its protective properties.
www.corrosionsource.com /events/intercorr/techsess/papers/session3/abstracts/silbert.html   (3732 words)

  
 NTP: Abstract for TR-294 - Chlorinated Trisodium Phosphate
Two-year studies were begun in male and female F344/N rats at doses of 0, 500, 1,000, or 2,000 mg/kg of chlorinated trisodium phosphate in water by gavage (10 ml/kg).
The lower survival and mean body weights of the dosed female mice may have been due to a greater incidence of uterine/ovarian infections in these mice rather than to a direct toxic effect of chlorinated trisodium phosphate.
Chlorinated trisodium phosphate was weakly mutagenic in strain TA1535 of Salmonella typhimurium in the presence of Aroclor 1254-induced male Sprague-Dawley rat or male Syrian hamster liver S9.
ntp-server.niehs.nih.gov /index.cfm?objectid=07076E21-FDA5-B191-219F95AF077188E4   (722 words)

  
 Detergent Chemistry: Builders & Additives
Trisodium phosphate is little used these days, because phosphates cause eutrophication of water.
If a piece of cloth has imbedded in it some calcium in the form of an insoluble calcium soap, the phosphate molecule re-dissolves the calcium, releases sodium which re-combines with the soap molecule, and thereby regenerates useable soap.
Phosphate have become out of favour biologically because of eutrophication, but suitable alternatives are hard to find that will completely replace them.
www.chemistry.co.nz /deterg_inorganic.htm   (923 words)

  
 Talk:Sodium phosphate - Wikipedia, the free encyclopedia
This article is about the same chemical as Trisodium phosphate; I don't know which should be the primary article and which should be a redirect.
I merged this article into Trisodium phosphate, because that was the longer article and it had more links pointing to it.
If anyone disagrees with this, then they can move that article here, but it would be polite to fix all the links as well.
en.wikipedia.org /wiki/Talk:Sodium_phosphate   (126 words)

  
 Remove surface contamination on your walls with trisodium phosphate.
Trisodium phosphate can remove dirt, grease, soap scum and many more surface contaminates and is probably the most powerful cleaner to use on walls and trim.
Trisodium phosphate, also known as TSP, will strip away many years worth of grime leaving a clean and etched surface to maximize the paints adhesion.
This formula isn’t as strong as standard trisodium phosphate, but will do a good job at removing house hold grease and grime.
www.house-painting-info.com /trisodium-phosphate.html   (320 words)

  
 trisodium phosphate   (Site not responding. Last check: 2007-11-07)
Established Jun 2001 in Sichuan of china, we are a professional manufacture of phosphates.
Supplier of sodium tripolyphosphate, phosphoric acid, phosphates for dishwashing detergents, industrial cleaners, metal finishing, and chemicals (tin oxide) for ceramics.
Phosphates and Phosphoric Acid Trisodium phosphate crystals (TSP-C) Na 3...
www.neis.com /mostpop/terms/trisodium_phosphate.html   (408 words)

  
 Innophos
These gaps are then plugged by the formation of insoluble iron phosphates resulting from the reaction of sodium orthophosphate with the anodic corrosion product.i.e.
Condensed phosphates or polyphosphates, as the names suggest, contain more than one phosphorus atom in the molecule or ion, connected to each other through an oxygen bridge.
Blends improve the range and reliability of phosphate based inhibitors and represent the most vigorous growth opportunities.
www.innophos.com /brochures/tir18/page1.asp   (1706 words)

  
 FOSFA - Trisodium Phosphate Crystalline - Technical
Trisodium phosphate is a white crystalline odourless substance with strong alkaline reaction.
Trisodium phosphate is packed into paper bags containing 40 kg or polypropylene bags containing 25 kg.
It is transported by covered conveyances and it has to be stored in dry and indoor storehouses.
www.wdt.cz /www/fosfa.cz/index.php?typ=FOB&showid=42&fla=1   (82 words)

  
 Cleaning Products
An excellent concentrated phosphate-free cleaner for general-purpose household cleaning where phosphates are prohibited.
A non-sudsing powdered Trisodium Phosphate compound that is formulated for heavy duty cleaning.
TSP-PF A heavy duty cleaner with the equivalent cleaning power of TSP for use where phosphate cleaners are prohibited.
www.savogran.com /Retail_Products/Cleaning_Products/cleaning_products.html   (591 words)

  
 GreenConsumer.cc   (Site not responding. Last check: 2007-11-07)
Trisodium Phosphate (TSP) is used as a general purpose cleaner and degreaser, and can substitute for other all-purpose cleaners.
TSP contains phosphates, which have been phased out from detergents due to their adverse effects on freshwater environments.
Because TSP has the potential to irritate eyes, nose, and lungs, goggles and gloves should be worn when using it as a powder.
www.greenconsumer.cc /consumers/tsp.html   (110 words)

  
 Alkalinity and phosphate
The boiler volume is multiplied by the factor and the dosage of TSP is entered to the nearest one-half ounce in the appropriate space.
The increase in phosphate due to TSP is given in the last column.
DSP is added to allow a margin for phosphate in case it should become necessary to treat the feedwater only for alkalinity since the addition of TSP to raise alkalinity will also increase its phosphate level.
www.tpub.com /engine1/en1-138.htm   (789 words)

  
 clayart - thread 'trisodium phosphate'   (Site not responding. Last check: 2007-11-07)
Trisodium Phosphate can be found at any hardware store.
Trisodium phosphate is sold in many hardware stores.
I think the phosphates are the the chemicals that created such a flap and caused the soap people to redo their formulations.
www.potters.org /subject11407.htm   (656 words)

  
 Removal of Lead Contaminated Dusts from Hard Surfaces
Government guidelines have widely recommended trisodium phosphate (TSP) or "lead-specific" cleaning detergents for removal of lead-contaminated dust (LCD) from hard surfaces, such as floors and window areas.
The purpose of this study was to determine if low-phosphate, non-lead-specific cleaners could be used to efficiently remove LCD from 3 types of surfaces (vinyl flooring, wood, and wallpaper).
Laboratory methods were developed and validated for simulating the doping, embedding, and sponge cleaning of the 3 surface types with 4 categories of cleaners: lead-specific detergents, nonionic cleaners, anionic cleaners, and trisodium phosphate (TSP).
pubs.acs.org /cgi-bin/abstract.cgi/esthag/2006/40/i02/abs/es050803s.html   (322 words)

  
 High pH during Trisodium Phosphate Treatment Causes Membrane Damage and Destruction of Salmonella enterica Serovar ...
Effect of trisodium phosphate washing on the sensory evaluation of poultry meat.
Effects of acetic acid, lactic acid and trisodium phosphate on the microflora of refrigerated beef carcass surface tissue inoculated with Escherichia coli O157:H7, Listeria innocua and Clostridium sporogenes.
Trisodium phosphate treatment of beef surfaces to reduce Escherichia coli O157:H7 and Salmonella typhimurium.
aem.asm.org /cgi/content/full/69/1/122   (4474 words)

  
 ARS | Publication request: Response to Trisodium Phosphate Treatment of Salmonella Chester Attached to Fresh-Cut Green ...
Citation: Liao, C., Cooke, P.H. Response to Trisodium Phosphate Treatment of Salmonella Chester Attached to Fresh-Cut Green Pepper Slices.
Population studies and scanning electron microscopic examinations revealed that attachment of S. chester on pepper disks occurred mainly on the surfaces of injured tissue but rarely on the unbroken skin.
When inoculated disks were treated with 3 to 12 % of trisodium phosphate (TSP) at pH 12.3 for 5 min, the population of bacteria on the disk was reduced by 10- to 100-fold.
www.ars.usda.gov /research/publications/publications.htm?SEQ_NO_115=105453   (512 words)

  
 Phosphoric Acid,Trisodium phosphate, Monoammonium phosphate, Diammonium phosphate, Potassium Dihydrogen Phosphate, ...
Phosphoric Acid,Trisodium phosphate, Monoammonium phosphate, Diammonium phosphate, Potassium Dihydrogen Phosphate, DiPotassium Phosphate, Sodium Tripolyphosphate, Sodium Hexametaphosphate, Sodium Pyrophosphate Anhydrate, Sodium Pyrophosphate Decuplehydrate
The factory - Mianzhu Phosphates Chemical Manufacture Co., Ltd invested by CNCCCQD and local government, is located in the north of Chuanxi Plain, which is one of the four largest phosphorus mine bases in China with convenient communication and transportation.
We mainly produce a series of chemicals of phosphates up to more than twenty kinds.
www.chinaphosphates.com   (205 words)

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