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Methanol
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1) Crude Methanol TU 113 >>>
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No. | Indicator description | Testing method | Norm according to TU 113-05-323-77 | The actual value |
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1 Overall view | cl. 4.1 TU 113-05-323-77 | Colorless or slightly colored liquid without mechanical impurities | Colorless transparent liquid without insoluble impurities | |
2 Density at 20 °С, g/cm3 | GOST 18995.1-73 Section 1 | not more than 0,818 | 0.809 | |
3 Mass fraction of water, % | Section 2 GOST 14870-77 | not more than 9,0 | 8.9 | |
4 Mass fraction of the organic part, % | cl. 4.4 TU 113-05-323-77 | not less than 91.0 | 91.1 | |
5 pH (medium) | cl. 4.5 TU 113-05-323-77 | not less than 7.0 | 8.3 |
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2) Crude Methanol TU 2421 >>>
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No. | Indicator description | Testing method | Norm according to TU 2421-322-05742746-97 | The actual value value |
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1 | Overall view | cl. 5.1 TU 2421-322-05742746- 97 | colorless or slightly colored liquid without mechanical impurities | colorless transparent liquid, without mech. impurities |
2 | Density at 20 °C, kg/cm3 | GOST-18995.1-73 | not more than 0.825 | 0.813 |
3 | Mass fraction of water, % | Section 2, GOST 14870-77 | not more than 12.0 | 7.3 |
4 | Mass fraction of the organic part, % | cl. 5.3 TU 2421-322-05742746- 97 | not less than 88.0 | 92.7 |
5 | pH (medium) | Instructions for the pH-meter | not less than 5.0 | 5.3 |
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3) Methanol technical grade A >>>
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No | Name of the indicator | Technique Test | Standard according to GOST-2222-95 | The actual value |
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1 | Overall view | cl. 6 GOST 2222-95 | Сolorless transparent Liquid without insoluble impurities | Сolorless transparent liquid without insoluble impurities |
2 | Density at 20 °C, g/cm3 | GOST-18995.1-73 | 0.791–0.792 | 0.791 |
3 | Miscibility with water | cl. 6.5 GOST 2222-95 | Miscible with water without cloudiness or opalescence | Miscible with water without cloudiness or opalescence |
4 | Temperature limits: boiling point, °С 99 % of the product is distilled within, °C | GOST-25742.1-83 | 64.0–65.5 not more than 0.8 | 64,2–64,9 0.7 |
5 | Mass fraction of water, % | GOST14870-77(section 2,electrometrictitration | not more than 0.05 | 0.010 |
6 | Mass fraction of free acids in equivalent of formic acid, % | GOST-25742.2-83 | not more than 0.0015 %. | 0.0008 |
7 | Mass fraction of aldehydes and ketones in equivalent of acetone, % | cl. 6.7 GOST 2222-95 | not more than 0.003 | 0.0020 |
8 | Potassium permanganate test, min | GOST-25742.5-83 | not less than 60 | 65 |
9 | Chromaticity according to the platinum cobalt color scheme, Hazen units | GOST-29131-91 | not more than 5 | 5 |