Sodium oxalate, Na

A solution of potassium permanganate was standardized against sodium oxalate (Na C ) primary standard. A 50.0 mL 0.01 MNa2C204 standard solution required 37.8 mL KMn04 solution. Determine the strength (molarity) of KMn04 solution. 

SODIUM OXALATE. Na.C.O. Alloys 3003 and 5154 were resistant to solid s ium oxalate in laboratory tests conducted under conditions of 100% relative humidity at ambient temperature. In other laboratory tests, 3003 alloy was resistant to saturated solutions of sodium oxalate at ambient temperature, while dilute solutions of sodium oxalate (3.1%) caused moderate attack ( 7 mpy) of 3003 alloy at... 

Aliphatic carboxylic acids are difficult to reduce electroehemically. Reduction of a 10% oxalic acid in 10% H2SO4. at 15 °C at a mercury cathode (Refs. [494, 532] in Ref. [29]), a lead or amalgamated lead cathode (Ref. [495] in Ref. [29]) or at a sodium amalgam (Na(Hg) cathode (Ref. [497] in Ref. [29]) produces glyoxylic acid with a material yield of 88% and a current efficiency of 70%. The glyoxylic acid formed is stabilized by hydration [29]. 

The temperature were measured by means of the so called line reversal method, where the sodium oxalate was necessary to produce the Na-D lines. 

An attempt has been made [116] to hydrodimerize CO2 to oxalic acid, but only in hexane and with Na(Hg) was sodium oxalate obtained in a reasonable yield (40%). 

Fig. 12. DOR spectra of Na of sodium oxalate, with different spinning speeds. The quadrupolar coupling constant is 405 kHz, the asymmetric parameter is 0.72, and the...

Nickel cyanide C2N2PbS2 Lead thiocyanate C2N2Zn Zinc cyanide C2Na204 Sodium oxalate C3CI2N3O3 Na Sodium dichioroisocyanurate C3CI3N3... 

Solutions of 204 precipitate, from not too dilute Na", crystalline, white sodium oxalate, soluble in inorganic acids. 

Sodium amalgam sodium hydrogen oxalate Na,HglHOOC COONa... 

The calcium chelation value of a substance can be determined by an oxalate titration. In this method [12], a sample of the product to be tested is added to a sodium oxalate solution at pH 10 to 12. The mixture is then titrated with a solution containing calcium ions. When the chelate becomes depleted the endpoint can be noted by the precipitation of insoluble calcium oxalate. The calcium chelation value (CV) is reported as mg of calcium chelated per gram of chelate. The CV of Na LED3 A was determined at a range of concentrations. The results are presented in Figure 7. EDTA chelates 260 mg CaCOj/g irrespective of system concentration. 

Morpholine [110-91-8] M 87.1, f -4.9", b 128.9", d 1.0007, n 1.4540, n 5 1.4533, pK 8.33. Dried with KOH, fractionally distd, then refluxed with Na, and again fractionally distd. Dermer and Dermer [J Am Ghent Soc 59 1148 1937] ppted as the oxalate by adding slowly to slightly more than 1 molar equivalent of oxalic acid in EtOH. The ppte was filtered and recrystd twice from 60% EtOH. Addition of the oxalate to cone aq NaOH regenerated the base, which was separated and dried with solid KOH, then sodium, before being fractionally distd. 

Elemental composition Na 34.32%, C 17.92%, 0 47.76%. The aqueous solution is analyzed for sodium by AA or ICP method. The oxalate ion is quantitatively determined by titration against a standard solution of potassium permanganate. 

Sodium Formate, H.COO.Na mw 68.01 wh, si hygroscopic powd sp gr 1-919, mp 245° (dec) sol in w si sol in ale insol in eth. Can be prepd by hearing under pressure of NaOH with CO purified by crystallization. Used as reducing agent, mordant and manuf of formic acid, methyl formate and oxalic acid... 

AA43 C2HNa04 sodium acid oxalate QVVO -NA- H00CC00"Na+ DMSO ER Et4NC104 0.1 " Au/SCE -AO CO LT CO < > d... 

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