Name | Urea |
CAS NO. | 57-13-6 |
Chemical formula | CO (NH2)2 |
Appearance | White prilled crystal |
Molecular weight | 60.055 |
Density | 1.32 g/m3 |
Property | It is soluble in water and alcohol. Its water solubility is faintly alkaline. It decomposes when heated over fusing point. Under high temperature, it can undergo a condensation reaction and form biuret, triuret and polyhydrocyanic acid. |
Name | Sulfur Coated Urea | Class | AAA | ||
Mark | / | Department | Quality Control Department | ||
Sample Base | 200 MT | Sample Size | 500g | ||
Batch No | 2019080510 | Sampling Personnel | Bai Jinsheng | ||
Sampling Date | 5th Aug 2019 | Test Date | 5th Aug 2019 | ||
Inspection basis | GB29401-2012 Sulfur Coated Urea(SCU) | ||||
No | Items | Standard | Test Results | ||
1 | Nitrogen % | ≥35.0 | 35.6 | ||
2 | Initial Release of Nutrient % | ≤15.0 | 5.2 | ||
3 | Seven Days Dissolution Rate % | ≤30.0 | 15.6 | ||
4 | Moisture % | ≤1.0 | 0.53 | ||
5 | Biuret % | ≤1.2 | 0.27 | ||
6 | Sulfur % | ≥15.0 | 18.4 | ||
7 | Size (2.00-4.75mm) % | ≥90.0 | 96 | ||
Test Result | Product Qualified. |
Name | Sulfur Coated Urea | Class | AAA | ||
Mark | / | Department | Quality Control Department | ||
Sample Base | 200 MT | Sample Size | 500g | ||
Batch No | 2021080510 | Sampling Personnel | Bai Jinsheng | ||
Sampling Date | 5th Aug 2021 | Test Date | 5th Aug 2021 | ||
Inspection basis | GB29401-2012 Sulfur Coated Urea(SCU) | ||||
No | Items | Standard | Test Results | ||
1 | Nitrogen % | ≥37.0 | 37.6 | ||
2 | Initial Release of Nutrient % | ≤27.0 | 12.3 | ||
3 | Seven Days Dissolution Rate % | ≤45.0 | 23.7 | ||
4 | Moisture % | ≤1.0 | 0.5 | ||
5 | Biuret % | ≤1.2 | 0.26 | ||
6 | Sulfur % | ≥15.0 | 18.5 | ||
7 | Size (2.00-4.75mm) % | ≥90.0 | 96 | ||
Test Result | Product Qualified. |