Main efficacy and function of pharmaceutical grade sorbic acid
Time of Update: 2022-08-20
0g of this product, add 50ml of ethanol to dissolve, and check according to the law (general rules 0901 and 0902), the solution should be clear and colorless .
Ensuring National Water Safety Water Quality Sampler Promotes Water Pollution Prevention and Control
Time of Update: 2022-06-14
Water quality samplers promote the prevention and control of water pollution and ensure national water safety, which is a major issue related to the national economy and people's livelihood, and is also a key task of environmental protection.
Physical and chemical properties of modified polyaluminum chloride (MPAC
Time of Update: 2021-10-22
[Preparation] The first step uses a high active iron oxide containing aluminum, aluminum chloride to produce an intermediate product, a second step polymerized aluminum chloride and nontoxic organic polymer complex made spirit purification agent , And then processed into powder and tablets .
Furniture renovation coating DIY achievement exchange meeting held in Guangzhou
Time of Update: 2021-10-08
Renovate furniture for free and become a paint DIY master Renovate furniture for free and become a paint DIY master On June 5, 2014, the "Make Home Beautiful" Furniture Refurbishment Free Activity and Painters DIY Competition was officially launched.
Difficulties often encountered when choosing water-based dispersants
Time of Update: 2021-06-28
Problems caused by water-based resin-free color paste How to choose a dispersant1.
For water-based systems, the stability of the viscosity of the color paste is a better evaluation index, and the color paste with good stability tends to stabilize the pigment better.
Application prospects of photocatalytic oxidation technology
Time of Update: 2021-06-19
It has tried to use in the advanced treatment of air purification, drinking water and various toxic, harmful and difficult-to-degrade organic and inorganic polluted wastewater .
Treatment of 8 months of huge liver tumor disappeared advanced liver cancer patients "tumor-free survival
Time of Update: 2021-03-09
After consultation and careful consideration, Professor Li Gong developed a "triple drug program" for PD-1 combined levatininie and lanadamine, and at the same time, once a week to test liver and kidney function, blood routine and a fetal protein, and regularly monitor the physical condition after medication and the progress of the tumor.
The heat of the water-like paint is faster than expected
Time of Update: 2021-01-27
Traditional painting consumption tax policy will be introduced, pollution of the environment, toxic traditional paint will face industrial integration, and oil paint continues to encounter tightening restrictions, water-based paint and other environmentally friendly coatings will be in the atmosphere control and policy support to usher in rapid development opportunities.
How can birds not get lost during their migration
Time of Update: 2020-08-11
, Zhou Haixiang believes that if birds migrate at a fixed time, they may be able to navigate according to the sun and stars.
Precautions for installation of laboratory ultra pure water machine
Time of Update: 2013-05-03
Precautions for the installation of ultra pure water machine in the laboratory: 1 Select the appropriate installation location It shall be installed in places with drainage and floor drain facilities
Principle of UV weathering test, UV weathering test chamber
Time of Update: 2010-08-25
The principle of UV weathering test is the principle of UV weathering test; the UV weathering test equipment is another kind of light aging test equipment which mainly simulates the UV light in the su