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Brazil establishes technical regulations on the quality of sugarcane brandy and sugarcane wine
Time of Update: 2023-02-01
For more details, see: On December 27, 2022, Regulation No. 539 was published in the Official Gazette of Brazil, establishing the Technical Regulation on the Quality of Sugarcane Brandy and Sugarcane Liquor.
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"Women eat wild mushrooms and have hallucinations and keep pulling the line" hot search, ordinary people can
Time of Update: 2022-08-15
The most representative one is the poisonous mushroom of the genus Amanita, with a fatality rate as high as hours after eating.
The most representative one is the poisonous mushroom of the genus Amanita, with a fatality rate as high as hours after eating.
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Synephrine
Time of Update: 2022-06-11
Thin layer plate silica gel GDeveloping solvent n-butanol 36% acetic acid - water (5:1:2)After checking the color of ninhydrin ethanol solution, checking under sunlightHigh performance liquid chromatographyChromatographic column Agilent SB C 18 , 10um (4.
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Production process of 2,5-dimethoxyaniline
Time of Update: 2021-08-29
6. Production process1) MethylationAdd 500kg water and 226L 40% liquid caustic soda into the reaction pot, add 66kg hydroquinone under stirring, control the temperature below 35℃, and stir for 15min .
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Determination of protein in soy milk beverage (2
Time of Update: 2021-07-18
(2) Distillation Connect the Kjeldahl bottle according to the distillation device in Figure 3-7, plug the mouth of the bottle tightly, and insert the lower end of the condenser into the liquid surface of the absorption bottle (the bottle is pre-filled with 10 mL of 20g/L boric acid solution and mixed indicator 2 ~3 drops) .
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Dragon's eye
Time of Update: 2021-03-01
production of dragon's eye meat, is generally the use of fruit small dragon's eye varieties, but to meat thick, small nuclear, high sugar content.
Then place the fresh fruit in the sun, or in the oven, oven drying.
Long-eye dry moderate meat thick sweet, brittle, bright color, water content of 15%-19%.
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Corn seed vitality identification
Time of Update: 2021-01-11
With a commercially available red ink plus 19 servings of tap water with dye, randomly select 100 corn seeds, soaked with water for two hours to let it swell, with tweezers to swell the seed, milk embryo one by one peeled out, the treatment of seeds evenly placed in the culturer, injected with dye, to flood the seed degree, dyeing 15-20 minutes later, pour out the dye, with tap water repeatedly rinse seeds.
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How can I save a paint brush if it is defective
Time of Update: 2020-11-16
3 After brushing the first paint, if the paint film is too smooth, or there is water dust on it, it will make the brush behind can not stick in the corresponding place, and the formation of speckle phenomenon, so after waiting for the first paint dry, should first wipe off the surface attached to the oil, etc., and then brush the second time.
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Cosco: Why not make a breakthrough high-speed rail design
Time of Update: 2020-10-28
In the construction, Coxtron innovative water-based coatings and solvent-based coatings construction process is comparable, and the construction conditions are no longer strict, so that the spray efficiency is greatly improved.
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Paint formula: aqueous amino acid white enamel
Time of Update: 2020-04-03
The key points are as follows: 1 Formula of water-based amino acid white enamel: raw material dosage / kg, short oil, water-based alkyd resin 259.3, melamine resin 25.9, triethylamine 16.1, glycol mon
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Common knowledge of coating: base treatment shall be done well before construction of epoxy floor
Time of Update: 2020-04-03
Core tip: before the construction of the epoxy floor, it is necessary to do a good job in the foundation surface treatment, which is the premise preparation to ensure the construction quality of the f
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Paint common sense: skillfully control paint quality
Time of Update: 2020-04-03
Core tip: paint is a decorative material with high usage rate in home decoration Because of its bright colors, strong decorative effect, simple and convenient construction, it is deeply loved by consu
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Paint knowledge | brief introduction of the development status and future development strategy of automotive paint in China
Time of Update: 2020-04-03
3、 Taking the road of internationalization in the establishment of independent innovation system in China's automobile coating industry, we should give full play to our advantages in combination with national conditions, integrate some advanced technological achievements at home and abroad, and enhance the core competitiveness of China's coating industry Therefore, the coating industry should also cooperate with foreign-funded enterprises to create new products, and gradually move towards the road of internationalization!
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Particularities and construction requirements of powder coatings
Time of Update: 2020-03-04
The particularity and construction requirements of powder coating powder coating is a new type of solvent-free 100% solid powder coating Two kinds of thermoplastic powder coating and thermosetting pow
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Formula: Color powder coating
Time of Update: 2020-02-21
color powder coating formulation (for reference only): formula table 1 polyvinyl acetate emulsion 20% 2BA-154 lotion 7 3 water 36 4 light calcium carbonate 1.2% 5 calcium tripolyphosphate 1 2% 6 b
