PAC products are high-tech products. As Anionic Cellulose Ether, it
features high purity, high replacement and well distribution and can be taken
as thickener, rheology modifier and fluid loss agent. HV and LV PAC are
indispensable products in slurry combination.
High
quality PAC is white flowing powder and the water solution is transparent
viscous liquid. As water soluble polymer, it can be able to be thickener,
rheology control agent, adhesive, stabilizer, protective glue, suspending agent
and water retaining agent.
In oil drilling industry, PAC is a good kind
of slurry agent and fluid material, with high mud yield and excellent salt
resistance. To fresh-water mud, seawater mud and saturated brine mud, PAC is an
excellent filtration reducer ,superior to increase viscosity and high
temperature resistance (150℃). Besides, it can formulate completion fluids with
various densities . Even there is more calcium chloride, it still can keep the
completion fluid with certain viscosity and lower filtration.
Our HV and LV PAC
products not only meet the standards of OCMA and API 13A, but also able to step
over these standards if you have a special demand.
Polyanionic Cellulose (PAC) Polyanionic Cellulose, Oil Drilling Polyanionic Cellulose,Anionic Cellulose Ether China National Huachen Energy Group Co., Ltd. , http://www.chc-chem.com
1. Ammonium bicarbonate cannot be mixed with alkaline fertilizer to prevent ammonia volatilization and cause nitrogen loss.
2. When the soil is dry or the moisture is insufficient, it is not advisable to apply ammonium bicarbonate.
3. When ammonium bicarbonate is applied, it should not be in contact with crop seeds, roots, stems and leaves to avoid burning plants.
4, ammonium bicarbonate should not be used as a seed fertilizer, otherwise it may affect the seed germination.
Huaxian County Fertilizer Station Zhao Dongli
Ammonium bicarbonate is a commonly used nitrogen fertilizer that is deliquescent and easy to agglomerate. When the temperature is low, it is relatively stable. If the temperature is slightly higher or the moisture in the product exceeds the standard, ammonium bicarbonate will be decomposed into ammonia gas and carbon dioxide, resulting in loss of nitrogen nutrients. Pay attention to the following issues when using ammonium bicarbonate:
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