Automotive Grade Urea granules

Description of low biuret urea 99% high purity SCR UREA with SGS testing What is SCR?-—SCR (selective Catalytic Reduction) transforms the harmful nitrogen oxides (NOx) in the exhaust of diesel vehicles into harmless nitrogen gas and water vapour. The SCR solution is metered into the exhaust system in front of a catalyst. The urea hydrolyses to ammonia which then reacts with the NOx in the exhaust gas.

What is DEF?—-DEF is aqueous urea solution used in SCR systems on diesel vehicles. SCR Urea complies with ISO 22241-1 and DIN 70070 standards

why ourSCR urea can be making DEF?—-The raw material of our urea is pure natural gas, so that the urea is with low Biuret, low Aldehydes and low heavy metal materials; We have the most advanced production equipment and testing equipment.

Automotive Grade Urea Parameters

Test Items	Limit	Result
Assay	≥99.0%	99.2%
Melting	132-135	–
Water insolubility	≤0.005%	0.003%
moisture		0.46%
Biuret	≤0.6%	0.45%
NH3	≤0.2%	0.0030%
CL	≤0.00015%	<0.00015%
SO4	≤0.001%	<0.001%
PO4	≤0.00015%	<0.0001%
CO3	≤0.5%	<0.2%
Na	≤0.00015%	0.000087%
K	≤0.00015%	0.00008%
Ca	≤0.00015%	0.000091%
Mg	≤0.00015%	0.000079%
Fe	≤0.00015%	0.000085%
Cr	≤0.00006%	null
Ni	≤0.00006%	null
Zn	≤0.00006%	null
Cu	≤0.00006%	null
Al	≤0.00006%	<0.0006%
HCOH	≤0.0015%	0.0001%

Packing Method:
For small samples quantity <1 kilograms, inside we use double resealable zip bags and outside with aluminium Foil Bags.

For medium quantity 1-25 kilograms, we pack them in double-layer plastic ziplock bags (inside) with aluminium foil bag(outside). Then packed in cartons or small drums as your requirement via FedEx/TNT/DHL or special channal.
For larger quantity >25 kilograms, normally we pack them in drums(normally 25KG per) with two strong PET bags.
We do supply smaller packages like 10gram/50gram per bag as your requirement. Please contact us for more details if you have any question!

https://www.risso-chemical.com/product/automotive-grade-urea/