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AR
LABOR
136702185
Oxalic Acid 99.5% AR Grade Reagent
Cas Number:6153-56-6
Formula:C2H2O4·2H2O
Molar Mass:126.07
EC Number:607-634-3
Physicochemical properties:
Colorless monoclinic or prismatic crystal or white powder. It will sublimate from 150 to 160 °C and will eathering in high heat dry air. 1 g is dissolved in 7 ml of water, 2 ml of boiling water, 2.5 ml of ethanol, 1.8 ml of boiling ethanol, 100 ml of diethyl ether, 5.5 ml of glycerin, and is insoluble in benzene, chloroform and petroleum ether. The pH of the 0.1 mol/L solution is 1.3. The relative density (d18.54) is 1.653. The melting point is 101 to 102 ° C (187 ° C, anhydrous).
Usage:
Complexing agent. Masking agent. Precipitant. reducing agent. In the analysis, metal ions such as barium, calcium, chromium, gold, manganese, strontium and barium are determined and determined. Microscopic microcrystal analysis examines sodium and other elements. Precipitates calcium, magnesium, barium and rare earth elements. Calibrate a standard solution of potassium permanganate and barium sulfate solution. Bleach. Auxiliary agent.
Packing:
500g/25kg
Oxalic Acid 99.5% AR Grade Reagent
Cas Number:6153-56-6
Formula:C2H2O4·2H2O
Molar Mass:126.07
EC Number:607-634-3
Physicochemical properties:
Colorless monoclinic or prismatic crystal or white powder. It will sublimate from 150 to 160 °C and will eathering in high heat dry air. 1 g is dissolved in 7 ml of water, 2 ml of boiling water, 2.5 ml of ethanol, 1.8 ml of boiling ethanol, 100 ml of diethyl ether, 5.5 ml of glycerin, and is insoluble in benzene, chloroform and petroleum ether. The pH of the 0.1 mol/L solution is 1.3. The relative density (d18.54) is 1.653. The melting point is 101 to 102 ° C (187 ° C, anhydrous).
Usage:
Complexing agent. Masking agent. Precipitant. reducing agent. In the analysis, metal ions such as barium, calcium, chromium, gold, manganese, strontium and barium are determined and determined. Microscopic microcrystal analysis examines sodium and other elements. Precipitates calcium, magnesium, barium and rare earth elements. Calibrate a standard solution of potassium permanganate and barium sulfate solution. Bleach. Auxiliary agent.
Packing:
500g/25kg
Item of Analysis | Standard |
Assay,% | 99.5 min |
Transparency of solution | 3 max |
Insoluble in water,% | 0.005 max |
Residue on ignition(as SO4),% | 0.02 max |
Chloride(Cl),% | 0.002 max |
Sulfate(SO4),% | 0.002 max |
Nitrogen compounds(N),% | 0.002 max |
Calcium(Ca),% | 0.003 max |
Iron(Fe),% | 0.0005 max |
Heavy metals(as Pb),% | 0.0004 max |
Really carbonized substances | to pass test |
Item of Analysis | Standard |
Assay,% | 99.5 min |
Transparency of solution | 3 max |
Insoluble in water,% | 0.005 max |
Residue on ignition(as SO4),% | 0.02 max |
Chloride(Cl),% | 0.002 max |
Sulfate(SO4),% | 0.002 max |
Nitrogen compounds(N),% | 0.002 max |
Calcium(Ca),% | 0.003 max |
Iron(Fe),% | 0.0005 max |
Heavy metals(as Pb),% | 0.0004 max |
Really carbonized substances | to pass test |
Symbol | |
Signal word | Danger |
Hazard statement | H302+H312 |
H318 | |
Precautionary statements—Prevention | P264 |
P270 | |
P280 | |
Precautionary statements—Response | P302+P352+P312 |
P305+P351+P338+P310 | |
Precautionary statements—Storage | P501 |
UN No. | No information |
Melting point | 187°C |
Symbol | |
Signal word | Danger |
Hazard statement | H302+H312 |
H318 | |
Precautionary statements—Prevention | P264 |
P270 | |
P280 | |
Precautionary statements—Response | P302+P352+P312 |
P305+P351+P338+P310 | |
Precautionary statements—Storage | P501 |
UN No. | No information |
Melting point | 187°C |