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Food Grade Sodium Carbonate (Soda Ash Dense) 99% Purity
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Factory Supply Sodium carbonate (497-19-8)
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SODIUM CARBONATE
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sodium carbonate anhydrous
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Sodium Bicarbonate Pharmaceutical Grade / Sodium Bicarbonate Injection CAS No.: 497-19-8
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Sodium Carbonate (Soda Ash) cas 497-19-8
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SodiuM Carbonate [for General Organic CheMistry]
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497-19-8 Usage

Purification Methods

It crystallises from water as the decahydrate which is redissolved in water to give a near-saturated solution. By bubbling CO2, NaHCO3 is precipitated. It is filtered off, washed and ignited for 2hours at 280o [MacLaren & Swinehart J Am Chem Soc 73 1822 1951]. Before being used as a volumetric standard, analytical grade material should be dried by heating at 260-270o for 0.5hour and allowed to cool in a desiccator. It has a transition point at 450o, and its solubility in water is 21.58% at 20o (decahydrate in solid phase), 49.25% at 35o (heptahydrate in solid phase) and 44.88% at 75o(monohydrate in solid phase) [D.nges in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 987-988 1963]. After three recrystallisations, technical grade Na2CO3 had Cr, Mg, K, P, Al, W, Sc and Ti at 32, 9.4, 6.6, 3.6, 2.4, 0.6, 0.2 and 0.2 ppm respectively; another technical source had Cr, Mg, Mo, P, Si, Sn and Ti at 2.6, 0.4, 4.2, 13.4, 32, 0.6, 0.8 ppm respectively.

Uses

Soda ash is used in glass making, in production of sodium chemicals (such as sodium chromates, phosphates, and silicates), in the wood pulp industry, in production of soaps and detergents, in oil refining, in water softening, and in refining of nonferrous metals. In its hydrous crystallized form (Na2C03.10H2O), it is known as sal soda,washing soda,or soda crystals, not to be confused with baking soda,which is sodium hydrogen carbonate or sodium bicarbonate (NaHC03). Its monohydrate form(Na2C03·H20) is the standard compound for scouring solutions.
When in solution, sodium carbonate creates less alkalinity than the hydroxides. A 0.1% solution creates a pH of 11;a fully saturated solution is 35%, which has a pH of 12.5.
The safety requirements for sodium carbonate, because of its lower alkalinity, can be considered less demanding than those for the related bicarbonates.

Uses

Sodium carbonate is a kind of important raw material for chemical industry with wide application. It is the important raw material for making glass, soaps, detergents, textiles, leather, spices, dyes, medicines, etc.
It can be used for analysis reagents and also used for the pharmaceutical industry and photoengraving.
It is widely used in glass, chemicals, paper making, metallurgy, pharmaceutical, and textile as well as food industries.
It is TV dedicated reagent.
It can be used for the food industry as the neutralizing agent, leavening agents such as for the manufacture of amino acids, soy sauce and pasta such as bread, bread and so on. It can also be prepared to dubbed alkaline and add into pasta to increase the flexibility and ductility.
As the detergent, it can be used for wool rinse. It can also be applied to bath salts and pharmaceutical use and also be used as the alkali agent of tanning.
Sodium carbonate is most used in industry with a small part using by the civilian. In the soda ash of industry purpose, it is mainly applied to light industry, building materials and chemical industry, accounting for about 2/3: followed by metallurgy, textiles, petroleum, defense, and pharmaceutical. The glass industry is the largest soda consumer sector with each ton of glass consuming 0.2 ton of soda ash. In the chemical industry, it can be used for manufacturing of sodium silicate, sodium dichromate, sodium nitrate, sodium fluoride, baking soda, borax, and trisodium phosphate. In the metallurgical industry, it is mainly used for fluxing agent, mineral flotation agent, and desulfurization agent for steel and antimony. It can also be used as water softener in printing and dyeing industry. In tanning industry, it can be used for the degreasing of raw hides, neutralizing chrome tanned leather and improving the alkalinity of the chrome liquid. It is also used in the production of synthetic detergent additive sodium tripolyphosphate and other sodium salt.
It can be used as a buffer, neutralizing agent and dough conditioner. It can be used in cakes and pastas. Make appropriate use it according to actual requirement of production.
It is mainly applied to float glass, funnels, optical glass. It can also be used in other sectors of chemical industry and metallurgy industry. It can reduce the flying the alkali dust through application of heavy soda ash, and thus reducing the material consumption, improving the working conditions as well as improving product quality while reducing its erosion on the refractory material to extend the life of the furnace.
It is a kind of basic chemical raw material which is widely used in medicine, paper making, metallurgy, glass, textiles, dyes and other industries and can be used as a leavening agent in food industry.
It can be used as analytical reagents, dehydrating agent, and battery additives.

Toxicity

ADI (acceptable daily intake) make no restrictions (FAO/WHO in 1985). LD50 (median lethal dose) is about 6 g/kg (mice-oral).
Soda ash dust has irritation effects on the skin, respiratory and eyes. Long-term exposure to soda solution may cause eczema and dermatitis. Its concentrated solutions can cause burns, necrosis, and even corneal opacity. The maximal allowable concentration of soda ash dust in the air is 2 mg/m3. The operators should wear overalls, door cover, gloves, boots and other protective clothing to protect the respiratory system and skin.

References

https://en.wikipedia.org/wiki/Sodium_hydroxide#Uses
http://www.essentialchemicalindustry.org/chemicals/sodium-carbonate.html

Production method

Sodium carbonate at present is mostly mined from its natural deposits. It also is manufactured syntheticallly by Solvay (or ammonia-soda) process. The natural production of sodium carbonate currently has supassed its synthetic production.
The Solvay process involves a series of partial reactions. The first step is calcination of calcium carbonate to form lime and CO2. Lime is converted to calcium hydroxide. The most crucial step of the process involves reacting brine solution with carbon dioxide and ammonia to produce sodium bicarbonate and ammonium chloride. Sodium bicarbonate converts to sodium carbonate. The calcium hydroxide and ammonium chloride react to form calcium chloride as the by-product. The partial reactions are shown below:
CaCO3 → CaO + CO2
CaO + H2O → Ca(OH)2
2NaCl + 2CO2 + 2NH3 + 2H2O → 2NaHCO3 + 2NH4Cl
2NaHCO3 → Na2CO3 + H2O + CO2
Ca(OH)2 + 2NH4Cl → CaCl2 + 2NH3 + 2H2O
The overall reaction:
CaCO3 + 2NaCl → Na2CO3 + CaCl2
Sodium carbonate was made historically by the Leblanc process. The first commercial production was carried out by the Leblanc process. In this process, sodium chloride was treated with sulfuric acid to produce sodium sulfate and hydrochloric acid. Heating the sodium sulfate with coal and limestone produced a “black ash” that contained sodium carbonate, calcium sulfide, unreacted coal, and calcium carbonate. Sodium carbonate was separated from the black ash by leaching with water. The overall reaction is as follows:
Na2SO4 + 2C + CaCO3 → Na2CO3 + CaS + 2CO2

Description

Sodium carbonate (molecular formula: Na2CO3), is the water soluble sodium salt of carbonate. The pure product appears as a while, odorless powder with a strong alkaline taste. It has high hygroscopicity. It can be easily dissolved in water to form an aqueous solution with moderate alkalinity. Sodium carbonate has wide applications in various kinds of fields around the world. One of most important application of sodium carbonate is for the manufacturing of glass. Based on statistics information, about half of the total production of sodium carbonate is used for the manufacturing of glass. During the production of glass, sodium carbonate acts as a flux in the melting of silica. In addition, as a strong chemical base, it is used in the manufacturing of pulp and paper, textiles, drinking water, soaps and detergents and as a drain cleaner. In addition, it can also be used for tissue digestion, dissolving amphoteric metals and compounds, food preparation as well as acting as a cleaning agent. There are generally two ways for the production of sodium carbonate. One is through the reactions between sodium chloride and calcium carbonate (via the ammonia soda (Solvay) process). The other is from sodium carbonate and hydrogencarbonate ores (trona and nahcolite).

Chemical Properties

Sodium carbonate, Na2C03, also known as soda or soda ash,is the most important of the industrial alkalis. It is a white or grayish-white, lumpy, water-soluble powder that loses its water of crystallization when heated. It decomposes at a temperature of about 852°C (1560°F). It exists in solution only. It is prepared by the combination of carbon dioxide and water.

Physical Properties

The anhydrous salt is an odorless white powder; alkaline taste; hygroscopic; density 2.54 g/cm3; melts at 851°C; begins to loose CO2 well before melting; soluble in water; insoluble in alcohol; dissolves in acids liberating CO2.
The monohydrate consists of colorless and odorless small crystals or cystalline powder; orthorhombic structure; refractive index 1.420; hardness 1.3 Mohs; density 2.25 g/cm3; loses water at 100°C becoming anhydrous; very soluble in water; insoluble in ethanol.
The decahydrate consists of transparent crystals; effloresces on exposure to air; density 1.46 g/cm3; decomposes at 34°C; very soluble in water; insoluble in ethanol.
Aqueous solutions are strongly alkaline.
InChI:InChI=1/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

497-19-8 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Sigma-Aldrich (71363)  Sodiumcarbonate  certified reference material for titrimetry, certified by BAM, according to ISO 17025, ≥99.5% 497-19-8 71363-50G 2,046.33CNY Detail
Sigma-Aldrich (S7795)  Sodiumcarbonate  BioXtra, ≥99.0% 497-19-8 S7795-1KG 1,359.54CNY Detail
Sigma-Aldrich (S7795)  Sodiumcarbonate  BioXtra, ≥99.0% 497-19-8 S7795-500G 760.50CNY Detail
Sigma-Aldrich (791768)  Sodiumcarbonate  anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99.5% 497-19-8 791768-12KG 5,806.71CNY Detail
Sigma-Aldrich (791768)  Sodiumcarbonate  anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99.5% 497-19-8 791768-6X1KG 6,802.38CNY Detail
Sigma-Aldrich (791768)  Sodiumcarbonate  anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99.5% 497-19-8 791768-2.5KG 2,740.14CNY Detail
Sigma-Aldrich (791768)  Sodiumcarbonate  anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99.5% 497-19-8 791768-1KG 1,333.80CNY Detail
Sigma-Aldrich (791768)  Sodiumcarbonate  anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99.5% 497-19-8 791768-500G 923.13CNY Detail
USP (1613757)  Sodium carbonate anhydrous  United States Pharmacopeia (USP) Reference Standard 497-19-8 1613757-1G 4,588.74CNY Detail
Vetec (V900801)  Sodiumcarbonate  Vetec reagent grade, ≥99.5% 497-19-8 V900801-500G 144.61CNY Detail
Sigma-Aldrich (S2127)  Sodiumcarbonate  ReagentPlus®, ≥99.5% 497-19-8 S2127-5KG 2,989.35CNY Detail
Sigma-Aldrich (S2127)  Sodiumcarbonate  ReagentPlus®, ≥99.5% 497-19-8 S2127-1KG 896.22CNY Detail

497-19-8Synthetic route

ammonium carbonate

ammonium carbonate

ammonia
7664-41-7

ammonia

sodium chloride
7647-14-5

sodium chloride

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
In water NH3 passed into a soln. of (NH4)2CO3-NaCl until satn.; product free of Cl and NH3;100%
In water NH3 passed into a soln. of (NH4)2CO3-NaCl until satn.; product free of Cl and NH3;100%
Na2[B(CN)3]

Na2[B(CN)3]

water
7732-18-5

water

potassium carbonate
584-08-7

potassium carbonate

A

K[HB(CN)3]

K[HB(CN)3]

B

sodium carbonate
497-19-8

sodium carbonate

C

sodium hydroxide
1310-73-2

sodium hydroxide

Conditions
ConditionsYield
With tetrahydrofuranA 100%
B n/a
C n/a
Glauber's salt

Glauber's salt

carbon monoxide
201230-82-2

carbon monoxide

hydrogen
1333-74-0

hydrogen

A

hydrogen sulfide
7783-06-4

hydrogen sulfide

B

water
7732-18-5

water

C

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
with molten Na2SO4*10H2O; heating at 927 to 983°C for 2 h; ratio of CO and H2 1:3;A 98%
B n/a
C n/a
carbon monoxide
201230-82-2

carbon monoxide

water
7732-18-5

water

sodium sulfate
7757-82-6

sodium sulfate

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
iron(III) oxide In neat (no solvent) passing a mixture of CO/H2O-vapor over powdered Na2SO4 at 660°C; partial pressure of H2O: 0.3 at, catalyst: Fe2O3 in form of a Fe(NO3)2-soln.;; 85-92% Na2CO3;;97%
With catalyst: Fe2O3 and Sb2O5 or Fe2O3 and Sb2O4 or; Fe2O3 and As2O5 In neat (no solvent) passing a mixture of CO/H2O-vapor (CO from passing air through hot charcoal) over Na2SO4; partial pressure of H2O: 0.4 at, gas, containing 14.6% CO, is applied in 1.5-fold excess; catalyst: mixture of Fe2O3 and Sb2O5, Sb2O4 or As2O5;; 88.5% Na2CO3;;93.8%
With catalyst: Fe2O3 and Sb2O5 or Fe2O3 and Sb2O4 or; Fe2O3 and As2O5 In neat (no solvent) passing a mixture of CO/H2O-vapor (CO from passing air through hot charcoal) over Na2SO4, partial pressure of H2O: 0.4 at, catalyst :mixture of Fe2O3 and Sb2O5, Sb2O4 or As2O5;; 91.3-95.6% Na2CO3;;94-97.6
N-Cyanoguanidine
127099-85-8, 780722-26-1

N-Cyanoguanidine

sodium hydroxide
1310-73-2

sodium hydroxide

A

disodium cyanamide

disodium cyanamide

B

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
after V. A. Shushunov and A. M. Pavlov, Dokl. Akad. Nauk SSSR, 89, 1033(1953);A 95%
B 5%
disodium tetracarbonylferrate

disodium tetracarbonylferrate

carbon dioxide
124-38-9

carbon dioxide

iron pentacarbonyl
13463-40-6

iron pentacarbonyl

B

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
In tetrahydrofuran reductive disproportionation, mechanism discussed;; IR; iron carbonyl not isolated;;A 82%
B 94%
sodium formate
141-53-7

sodium formate

A

sodium oxalate
62-76-0

sodium oxalate

B

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
sodium hydroxide In solid byproducts: H2; with NaOH (1:0.05) in N2 atmosphere, the heating rate 6 deg/min;A 92%
B n/a
In solid thermal decomposition of sodium formate in H2 atmosphere (TG at 435 :degree.C, the heating rate 6 deg/min;A 35%
B n/a
In solid thermal decomposition of sodium formate in CO atmosphere (TG at438 °C), the heating rate 6 deg/min;A 34%
B n/a
disodium tetracarbonylosmate

disodium tetracarbonylosmate

carbon dioxide
124-38-9

carbon dioxide

iodine
7553-56-2

iodine

cis-Os(CO)4(I)2
17632-05-2

cis-Os(CO)4(I)2

B

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
In tetrahydrofuran addn. of CO2 to suspension of Na2(Os(CO)4) in THF, filtn. onto I2 at 4°C;; pptg. of carbonate; soln.: removal of solvent (IR), sublimation off excess I2, extn. into toluene and concg. under vacuum;;A 61%
B 92%
(R)-phenylglycine
875-74-1

(R)-phenylglycine

methyl chloroformate
79-22-1

methyl chloroformate

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
With sodium hydroxide In water at 0℃; for 1h;91%
carbon dioxide
124-38-9

carbon dioxide

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
With [(1,1,4,7,10,10-hexamethyltriethylenetetramine)(Fe(NO)2)2]; sodium In tetrahydrofuran at 20℃; under 760.051 Torr; for 72h; Glovebox; Inert atmosphere; Sealed tube;90%
With Na-silicate In water introduction of CO2 into the aq. soln.;;
With Na-aryl sulfonate In further solvent(s) byproducts: aryl sulfonic acid ester; dissolving Na-aryl sulfonate (from aryl sulfonic acid and NaCl) in an alcohol, introduction of CO2-gas;;
sodium sulfate
7757-82-6

sodium sulfate

barium carbonate

barium carbonate

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
In water byproducts: BaSO4; wt.-ratio Na2SO4:BaCO3=5:11, 7h. at 33.+-.1°C;;88.97%
With Ba(HCO3)2 In not given reaction of a soln. of BaCO3 with Na2SO4; complete reaction by addition of a small amount of Ba(HCO3)2;;
sodium tetrahydroborate
16940-66-2

sodium tetrahydroborate

sodium formate
141-53-7

sodium formate

A

sodium oxalate
62-76-0

sodium oxalate

B

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
In solid reaction of sodium formate with NaBH4 (1:0.05) in N2 atmosphere, the heating rate 6 deg/min;A 88%
B n/a
In solid reaction of sodium formate with NaBH4 (1:1) in N2 atmosphere, the heating rate 6 deg/min;A 0%
B n/a
sodium sulfate
7757-82-6

sodium sulfate

calcium carbonate

calcium carbonate

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
With pyrographite In neat (no solvent) Leblanc process: heating; Na2SO4:CaCO3:C=100:100:75;;88%
In melt0%
In water Electrolysis; electrolysis of Na2SO4 soln. with an inert anode covered with a layer of insoluble CaCO3; reaction of CaCO3 with formed H2SO4 forming CO2; reaction of CO2 with NaOH formed in the cathod region;;
In melt0%
In water
2Na(1+)*W(CO)5(2-) = Na2[W(CO)5]
54099-82-0

2Na(1+)*W(CO)5(2-) = Na2[W(CO)5]

carbon dioxide
124-38-9

carbon dioxide

A

tungsten hexacarbonyl
14040-11-0

tungsten hexacarbonyl

B

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
In tetrahydrofuran reductive disproportionation; mechanism discussed;; IR;;A 83%
B n/a
In tetrahydrofuran soln. of the W-compound was treated with gasous CO2 at -78°C, warmed to 25°C; solvent removed (vac.), extd. (diethyl ether), ether removed (vac.); IR, MAS;A 83%
B n/a
sodium tetracarbonylruthenate(II)

sodium tetracarbonylruthenate(II)

carbon dioxide
124-38-9

carbon dioxide

iodine
7553-56-2

iodine

B

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
In tetrahydrofuran bubbling of excess CO2 through a suspension of Na2(Ru(CO)4) in THF (stirred 20min, 4°C), filtration of soln. onto I2 at 4°C;; pptg. of carbonate; soln.: removal of solvent (IR), sublimation off of excess iodine, extn. with THF;;A 73%
B 61%
2Na(1+)*{V(C5H5)(CO)3}(2-)*C4H8O=Na2{V(C5H5)(CO)3}*C4H8O

2Na(1+)*{V(C5H5)(CO)3}(2-)*C4H8O=Na2{V(C5H5)(CO)3}*C4H8O

carbon dioxide
124-38-9

carbon dioxide

A

tetracarbonyl(η(5)-cyclopentadienyl)vanadium(I)

tetracarbonyl(η(5)-cyclopentadienyl)vanadium(I)

B

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
In tetrahydrofuran bubbling of gaseous CO2 through suspension of corresponding carbonyl complex in THF for 5min at room temp.;; IR; removal of excess CO2 under vacuum, concg., extraction with pentane, concg. under reduced pressure; pentane insol. ppt.: carbonate;;A 67%
B 57%
sodium hexaflorophosphate

sodium hexaflorophosphate

[Fe(η5-cyclopentadienyl)(η-benzene)]

[Fe(η5-cyclopentadienyl)(η-benzene)]

carbon dioxide
124-38-9

carbon dioxide

trimethylphosphane
594-09-2

trimethylphosphane

A

{Fe(cp)(PMe3)3}(PF6)

{Fe(cp)(PMe3)3}(PF6)

B

{Fe(cp)(PMe3)2CO}(PF6)

{Fe(cp)(PMe3)2CO}(PF6)

C

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
CO2 reacts with (Fe(cp)(C6H6)) (1 atm, 0°C) in presence of PMe3 and NaPF6 to (Fe(cp)(PMe3)3)PF6;A 66%
B 33%
C n/a
selenium
7782-49-2

selenium

A

sodium selenate

sodium selenate

B

sodium carbonate
497-19-8

sodium carbonate

C

sodium hydroxide
1310-73-2

sodium hydroxide

Conditions
ConditionsYield
With sodium peroxide In neat (no solvent) byproducts: Na2SO4; oxidation of Se on melting with Na2O2in a Ni crucible;; the formed melt contains NaOH and Na2CO3; isolation as mixture of Na2SeO4 and Na2SO4;;A 58%
B n/a
C n/a
With Na2O2 In neat (no solvent) byproducts: Na2SO4; oxidation of Se on melting with Na2O2in a Ni crucible;; the formed melt contains NaOH and Na2CO3; isolation as mixture of Na2SeO4 and Na2SO4;;A 58%
B n/a
C n/a
sodium acetate
127-09-3

sodium acetate

A

sodium carbonate
497-19-8

sodium carbonate

B

pyrographite
7440-44-0

pyrographite

C

acetone
67-64-1

acetone

Conditions
ConditionsYield
In neat (no solvent) decomposition at 390°C, formation of acetone, Na2CO3 and traces of C between 410 and 450°C while distilling;;A n/a
B <1
C 53%
In neat (no solvent) decomposition at 390°C, formation of acetone, Na2CO3 and traces of C between 410 and 450°C while distilling;;A n/a
B <1
C 53%
sodium formate
141-53-7

sodium formate

lithium hydroxide
1310-65-2

lithium hydroxide

A

sodium oxalate
62-76-0

sodium oxalate

B

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
In solid byproducts: H2; reaction of sodium formate with LiOH (1:0.05) in N2 atmosphere, the heating rate 6 deg/min;A 49%
B n/a
dinatriumdecacarbonylwolframate

dinatriumdecacarbonylwolframate

A

triphenylphosphine tungsten pentacarbonyl
15444-65-2

triphenylphosphine tungsten pentacarbonyl

B

sodium formate
141-53-7

sodium formate

C

sodium hydrogencarbonate
144-55-8

sodium hydrogencarbonate

D

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
With carbon dioxide; triphenylphosphine In acetonitrile Irradiation (UV/VIS); (Ar or N2); UV irradn. (>420 nm) of soln. of W compd. and PPh3 with stirring at ca. 20°C for ca. 12 h under CO2 pressure, formed ppt. was sepd.; W(CO)5PPh3 was detected IR spect. in filtrate, not isolated; NaHCOO detected 1HNMR spect. in D2O soln. of ppt.; Na2CO3 and NaHCO3 detd. in aq. soln. of ppt. by titrn.;A 70-90
B 20%
C 18%
D 39%
Na(1+)*H(1+)*W2(CO)10(2-)=NaHW2(CO)10

Na(1+)*H(1+)*W2(CO)10(2-)=NaHW2(CO)10

A

triphenylphosphine tungsten pentacarbonyl
15444-65-2

triphenylphosphine tungsten pentacarbonyl

trans-triphenylphosphane tetracarbonyltungsten
16743-03-6, 38800-77-0, 68738-00-1

trans-triphenylphosphane tetracarbonyltungsten

C

sodium formate
141-53-7

sodium formate

D

sodium hydrogencarbonate
144-55-8

sodium hydrogencarbonate

E

sodium carbonate
497-19-8

sodium carbonate

Conditions
ConditionsYield
With carbon dioxide; triphenylphosphine In acetonitrile Irradiation (UV/VIS); (Ar or N2); UV irradn. (>420 nm) of soln. of W compd. and PPh3 with stirring at ca. 20°C for ca. 12 h under CO2 pressure, formed ppt. was sepd.; W compds. were detected IR spect. in filtrate, not isolated; NaHCOO detected 1HNMR spect. in D2O soln. of ppt.; Na2CO3 and NaHCO3 detd. in aq. soln. of ppt. by titrn.;A n/a
B n/a
C 30%
D 29%
E 27%
ammonia
7664-41-7

ammonia

amino-guanidine; compound with copper (II)-nitrate

amino-guanidine; compound with copper (II)-nitrate

sodium carbonate
497-19-8

sodium carbonate

water
7732-18-5

water

copper(II) methylsalicylate dihydrate

copper(II) methylsalicylate dihydrate

A

sodium carbonate
497-19-8

sodium carbonate

B

methyl salicylate
119-36-8

methyl salicylate

C

copper hydroxide

copper hydroxide

Conditions
ConditionsYield
Hydrolysis;
edetate disodium
139-33-3

edetate disodium

A

carbon dioxide
124-38-9

carbon dioxide

B

sodium carbonate
497-19-8

sodium carbonate

C

NaNO3

NaNO3

Conditions
ConditionsYield
With ozone at 20℃; Mechanism; Rate constant; Thermodynamic data; variation in pH, acidity of solution, and temperature; activation energy;
alpha-D-glucopyranose
492-62-6

alpha-D-glucopyranose

A

ethanol
64-17-5

ethanol

C

sodium carbonate
497-19-8

sodium carbonate

D

sodium lactate
312-85-6

sodium lactate

Conditions
ConditionsYield
With sodium hydroxide at 145℃; for 1h; Product distribution;
sodium L-(+)-lactate

sodium L-(+)-lactate

A

ethanol
64-17-5

ethanol

B

sodium carbonate
497-19-8

sodium carbonate

C

sodium lactate
312-85-6

sodium lactate

Conditions
ConditionsYield
With sodium hydroxide at 145℃; for 1h; Product distribution;
1-13C-sodium-L-lactate

1-13C-sodium-L-lactate

A

ethanol
64-17-5

ethanol

B

sodium carbonate
497-19-8

sodium carbonate

C

sodium lactate
312-85-6

sodium lactate

Conditions
ConditionsYield
With sodium hydroxide at 145℃; for 1h; Product distribution;

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