We are professional chemical reagent manufacturer from China. Established in 1996,owned brand-CONCORD, which is well known for the best quality products and service for our customers. We also can make OEM as require. Welcome to inquiry me if any requirements. contact@tjconcord.com.cn 

 

Test Items		Gradient Grade
Assay CH3CN (GC) , ω / %		≥99.9
Appearance		Clear, Colorless
Density (20℃) , ρ / (g/mL)		0.782~0.785
Evaporation Residue ω / %		≤0.0005
Water (H2O) ω / %		≤0.02
Solubility in H2O.		Pass Test
Titrable Acid.   / (mmol/g)		≤0.0004
Titrable Base.  / (mmol/g)		≤0.0002
Potassium Permanganate		—
UV Absorbance,(1.00- cm cell vs.water)	190nm	1.00
	200nm	0.05
	210nm	0.04
	220nm	0.03
	230nm	0.01
	240nm	0.01
	250nm	0.005
	254nm	0.005
GC-ECD Responsive Residue (Single Peak) （As γ-666） / (ng/L)		—
Gradient Elution Test at 254nm / (mAU)		≤1.0
Gradient Elution Test at 210nm / (mAU)		≤3.0

Established in 1996, Concord Technology (Tianjin) Co., Ltd. is a manufacturer specialized in the research, development and production of high purity chemical reagents and pharmaceutical intermediates. We are located in Tianjin, with convenient transportation access. In 2003, we built the production base and the R & D center, covering 25000 square meters and having 6 production lines and hundreds of varieties of products. We will have 2 large production lines next year to further improve the production capacity. In order to supply the best products and services, we have built excellent teams which focus on product research & development and quality control & inspection. We have obtained GB/T19001-2000/ISO9001:2000 and ISO9001:2008 Quality Management System Certificates respectively. All of our products comply with international quality standards. We have won some prizes during 15 years of development. We got Silver Prize for Science and Technology Progress in Tianjin City (Hebei District) in 1998 and were named as Excellent Private Science & Technology Enterprise of Tianjin City in 2004. Two of our products were entitled as Science and Technology Products of Tianjin City. By jointly carrying out the Key Projects in the National Science & Technology Support Plan in the 11th Five-year Plan Period since 2007, we have undertaken systematic research for three years on the preparation of high purity organic solvents and the common key technology for industrialization which was finally certificated by industry experts. Because of applying for 10 items of national patents and declaiming 4 items of science and technology achievements in 2009, our company was named as Advanced Unit for Intellectual Property. Our main products include HPLC reagent, high purity solvent, Karl Fischer reagent, pesticide analysis reagent, environmental analysis reagent and others. Products' features: High quality, strong stability, with UV absorption value far below index level; Comprehensive products and various packaging specifications offered; Strong capacity for mass production; Complete technology documents (MSDS) available; Detailed analysis reports available If you are interested in any of our products or would like to discuss a customized order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.