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1. Bicarbonates
- www.akca.org
- In this family, the most important one is the bicarbonate ion (HCO3-). It is one half of the old familiar sodium bicarbonate (NaHCO3) or Baking Soda. ...
- The bicarbonate ion is actually a buffer in a pond, able to raise the pH if it is too low or less well-known and more remarkable, to lower the pH if it is too high. How can it do that: The normal process in a pond is for the bicarbonate to keep pH stable by "absorbing" the acidic ions (H+) that are produced by the bacteria in the biological filter. ... The chemical formula is: HCO3- + H+ = H20 + CO2 (bicarbonate + acid = water + carbon dioxide).
- What is lost, however, is the bicarbonate ion. The bicarbonate has been transformed into carbon dioxide (CO2) and driven off as a gas. We also lost the acid, which had been produced by the bacteria in the biological filter, but because the bicarbonate is consumed in the reaction, we must continually replace it.
- But how can the bicarbonate act as a buffer-to go the other way, lowering the pH if it is too high? In that case, which we don't normally see in a pond, the bicarbonate ion would give up its hydrogen as an ion, thus adding acid, lowering pH, and becoming a carbonate ion (CO3--). Thus, HCO3- = CO3-- + H+ (bicarbonate = carbonate + acid).
- Many pond keepers add oyster shells or marble chips to the filter in order to get the benefit of the last equation going from right to left--that is the oyster shells or marble chips tend to dissolve (absorbing a hydrogen ion in the process) and providing the needed bicarbonate ion to "absorb" another hydrogen ion. ... I first added marble chips in3/4" size to the filters in my liner pond and now I have replaced them with whole oyster shells in an attempt to increase the bicarbonate level. ...
- So we see that bicarbonate acts as a buffer in the water. The complete equation (from Fish and Invertebrate Culture by Steven Spotte) is CO2(gas) <=> CO2(Ag) + H2O <=> H2CO3 <=> H+ + HCO3- <=> 2H+ + CO3-- (carbon dioxide <=> carbon dioxide + water<=> carbonic acid <=> acid + bicarbonate <=> acid + carbonate).
- If it’s lower, you probably don’t have enough bicarbonate. ... The only thing that will happen is that you will be destroying some of the bicarbonate in the pond. Add enough acid, and all of the bicarbonate becomes exhausted, and the next drop of acid, from the biological filter or from your addition will cause the pH to plummet with all of the damages described in the beginning of this article! So, never add anything to your pond to lower pH, NEVER. ... The carbonate ions (CO3--) and bicarbonate ions (HCO3-) "absorb" the acid ions -- so long as these carbonates are present in the water. ...
2. Articles - Bicarbonate
- www.golf-corner.net
- Bicarbonate is a polyatomic ion whose formula is HCO3-. It is the intermediate form in the deprotonation of carbonic acid: removing the first proton from carbonic acid forms bicarbonate; removing the second proton leads to the carbonate ion.
- The salts which contain the bicarbonate ion are also known as bicarbonates, such as sodium bicarbonate (baking soda) NaHCO3. ...
- The bicarbonate/carbonate ionic system is also a buffer in blood.
3. SODIUM BICARBONATE
- www.jtbaker.com
- SODIUM BICARBONATE .
- Synonyms: Sodium hydrogen carbonate; sodium acid carbonate; baking soda; bicarbonate of soda .
- Ingredient CAS No Percent Hazardous --------------------------------------- ------------ ------------ --------- Sodium Bicarbonate 144-55-8 99 - 100% No 3. ...
- --------\Cancer Lists\------------------------------------------------------ ---NTP Carcinogen--- Ingredient Known Anticipated IARC Category ------------------------------------ ----- ----------- ------------- Sodium Bicarbonate (144-55-8) No No None 12. ...
- --------\Chemical Inventory Status - Part 1\--------------------------------- Ingredient TSCA EC Japan Australia ----------------------------------------------- ---- --- ----- --------- Sodium Bicarbonate (144-55-8) Yes Yes Yes Yes --------\Chemical Inventory Status - Part 2\--------------------------------- --Canada-- Ingredient Korea DSL NDSL Phil. ----------------------------------------------- ----- --- ---- ----- Sodium Bicarbonate (144-55-8) Yes Yes No Yes --------\Federal, State & International Regulations - Part 1\---------------- -SARA 302- ------SARA 313------ Ingredient RQ TPQ List Chemical Catg. ----------------------------------------- --- ----- ---- -------------- Sodium Bicarbonate (144-55-8) No No No No --------\Federal, State & International Regulations - Part 2\---------------- -RCRA- -TSCA- Ingredient CERCLA 261. 33 8(d) ----------------------------------------- ------ ------ ------ Sodium Bicarbonate (144-55-8) No No No Chemical Weapons Convention: No TSCA 12(b): No CDTA: No SARA 311/312: Acute: No Chronic: No Fire: No Pressure: No Reactivity: No (Pure / Solid) .
4. NAP Skim View of: Sodium Bicarbonate
- www.nap.edu
- Sodium Bicarbonate, pages 60-60.
- : 144-55-8 SODI W BICARBONATE Chemical Formula: NaHCO3 Description: NAS/CWTC 031/82 Formula Weight: 84. ...
5. News - Sodium Bicarbonate Hydration Significantly Reduces Contrast-Induced Nephropathy After Radiographic Contrast
- www.docguide.com
- Sodium Bicarbonate Hydration Significantly Reduces Contrast-Induced Nephropathy After Radiographic Contrast.
- Contrast-induced nephropathy developed significantly less often in patients hydrated with sodium bicarbonate than in those hydrated with sodium chloride before and after radiographic contrast.
- Kennedy, MD, MPH, Department of Internal Medicine, Carolinas Medical Center, Charlotte, North Carolina, United States, and colleagues assessed contrast-induced nephropathy in 119 patients treated with 154 mEq/L of sodium bicarbonate or sodium chloride prior to iopamidol contrast for an interventional or diagnostic procedure.
- The 60 patients treated with sodium bicarbonate did not significantly differ from the 59 patients treated with sodium chloride in age, sex ethnicity, incidence of diabetes mellitus, weight, or by mean volume of contrast administered or in volumes of contrast received.
- 5 mg/dL," the authors write, "the group receiving sodium bicarbonate treatment incurred only a 1. ...
- 5% change in glomerular filtration rate after contrast in patients treated with sodium bicarbonate compared with -0. ... 9% of the patients in the sodium bicarbonate group, compared with 1. ...
- All subsequent patients meeting inclusion criteria received sodium bicarbonate. ...
- "We showed that replacing chloride ion with bicarbonate as the anion in sodium-containing hydration fluids significantly reduced nephropathy following radiographic contrast injection," the authors conclude. "Although confirmation in a larger multi-institution study would be appropriate, infusion of sodium bicarbonate may provide an inexpensive, safe, practical, and simple method for preventing contrast-induced renal failure," they suggest.
6. Clinical Correlates of pH Levels Problem Set
- www.biology.arizona.edu
- In this problem set, you will learn how metabolic acidosis or alkalosis can arise and how these conditions shift the bicarbonate equilibrium. ...
- What is blood bicarbonate? .
- Bicarbonate as a biological buffer .
7. Choline Chloride,Dicalcium Phosphate,Ammonium Bicarbonate Food Grade:SINOCHEM
- www.tradezone.com
- At present Feed Additives,Food Additives and Persulphate Salts and other chemcials & pharmaceutical products are our strong export items,such as Choline Chloride,Dicalcium Phosphate,Zinc Bacitracin,Butylated Hydroxytoluene, Metronidazole, Robenidine, Salinomycin, Cobalt Chloride, Cobalt Sulphate, Citric Acid, L-Glutamine, Cholesterol, Nisin , Ammonium Bicarbonate Food Grade, Sodium Bicarbonate,Magnesium Carbonate Food Grade, Potassium Sorbate, Natamycin, Potassium Benzote, Mannitol, Glucose, Corn Starch,Sodium Gluconate, Maltodextrin, Isonicotinic Acid, Agar Agar, Benzoyl Peroxide, Sodium Metabisulphite, Azodicarbonamide, Potassium Bromate, Sodium Benzoate, D-Glucosamine Sulfate, Oxalic Acid, Sodium Tripolyphosphate, Ammonium Persulphate, Potassium Persulphate,Sodium Persulphate, Lithopone and etc. ...
8. sodium bicarbonate. The Columbia Encyclopedia, Sixth Edition. 2001
- www.bartleby.com
- sodium bicarbonate.
- or sodium hydrogen carbonate, chemical compound, NaHCO3, a white crystalline or granular powder, commonly known as bicarbonate of soda or baking soda. ... The major use of sodium bicarbonate is in foods, e. ... Because the bicarbonate is less soluble than the carbonate, carbon dioxide gas is bubbled into a saturated solution of pure carbonate, and the bicarbonate precipitates out to be collected and dried.
9. Sodium Bicarbonate for the Treatment of Lactic Acidosis* -- Forsythe and Schmidt 117 (1): 260 -- Chest
- www.chestjournal.org
- Sodium Bicarbonate for the Treatment of Lactic Acidosis* .
- Treatment involves discerning and correcting its underlying cause, ensuring adequate oxygen delivery to tissues, reducing oxygen demand through sedation and mechanical ventilation, and (most controversially) attempting to alkalinize the blood with IV sodium bicarbonate. Here we review the literature to answer the following questions: Is a low pH bad? Can sodium bicarbonate raise the pH in vivo? Does increasing the blood pH with sodium bicarbonate have any salutary effects? Does sodium bicarbonate have negative side effects? We find that the oft-cited rationale for bicarbonate use, that it might ameliorate the hemodynamic depression of metabolic acidemia, has been disproved convincingly. Further, given the lack of evidence supporting its use, we cannot condone bicarbonate administration for patients with lactic acidosis, regardless of the degree of acidemia. ...
- Key Words: acid-base acidosis alkalinizing therapy bicarbonate lactic acidosis sodium bicarbonate.
- Sodium Bicarbonate Controversy in Lactic Acidosis.
10. Bicarbonate-responsive "soluble" adenylyl cyclase defines a nuclear cAMP microdomain -- Zippin et al. 164 (4): 527 -- The Journal of Cell Biology
- www.jcb.org
- Bicarbonate-responsive "soluble" adenylyl cyclase defines a nuclear cAMP microdomain .
- Bicarbonate-responsive "soluble" adenylyl cyclase resides, in part, inside the mammalian cell nucleus where it stimulates the activity of nuclear protein kinase A to phosphorylate the cAMP response element binding protein (CREB). ...
- Tyrosine Phosphorylation of the A Kinase Anchoring Protein 3 (AKAP3) and Soluble Adenylate Cyclase Are Involved in the Increase of Human Sperm Motility by Bicarbonate.
11. sodium bicarbonate
- www.infoplease.com
- sodium bicarbonate .
- Encyclopediasodium bicarbonate.
- sodium bicarbonate or sodium hydrogen carbonate,chemical compound, NaHCO3, a white crystalline or granular powder, commonly known as bicarbonate of soda or baking soda. ... The major use of sodium bicarbonate is in foods, e. ... Because the bicarbonate is less soluble than the carbonate, carbon dioxide gas is bubbled into a saturated solution of pure carbonate, and the bicarbonate precipitates out to be collected and dried.
- Related content from HighBeam Research on:sodium bicarbonate .
12. Compartmentalization of bicarbonate-sensitive adenylyl cyclase in distinct signaling microdomains -- ZIPPIN et al. 17 (1): 82 -- The FASEB Journal
- www.fasebj.org
- Compartmentalization of bicarbonate-sensitive adenylyl cyclase in distinct signaling microdomains1 .
- Bicarbonate elicited an eightfold increase in cAMP in nuclear extracts whereas forskolin produced no significant change. ... Mitochondrial sAC is also functional; sAC protein is present and cAMP is generated in response to bicarbonate in isolated mitochondria. ...
- In mammals, the ubiquitous second messenger cAMP is synthesized by two classes of adenylyl cyclase (AC): the G-protein-responsive transmembrane adenylyl cyclases (tmACs) and the widely distributed, bicarbonate-responsive soluble adenylyl cyclase (sAC). ...
- Bicarbonate-regulated sAC was originally purified from testis cytosol but has since been found in a wide variety of tissues. ...
- Cellular levels of bicarbonate will reflect changes in CO2, the final metabolite of energy-producing metabolic processes. Therefore, modulation of the electron transport chain by bicarbonate-sensitive sAC provides a possible mechanism for metabolic feedback regulation. ...
- Due to the ubiquitous presence of carbonic anhydrases, cellular levels of bicarbonate will reflect changes in intracellular pH as well as the metabolite CO2. Therefore, bicarbonate-regulated sAC could be involved in the variety of cellular and physiological processes attributed to each of these modulators, including fluid secretion, acid-base changes, breathing rate, and metabolic feedback control. ...
- Tyrosine Phosphorylation of the A Kinase Anchoring Protein 3 (AKAP3) and Soluble Adenylate Cyclase Are Involved in the Increase of Human Sperm Motility by Bicarbonate.
- Bicarbonate-responsive "soluble" adenylyl cyclase defines a nuclear cAMP microdomain.
- Bicarbonate-regulated Adenylyl Cyclase (sAC) Is a Sensor That Regulates pH-dependent V-ATPase Recycling.
- A Defined Subset of Adenylyl Cyclases Is Regulated by Bicarbonate Ion.
- SYNERGISM BETWEEN CALCIUM AND BICARBONATE.
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