Who we are
We are Concord Technology (Tianjin) Co.,ltd, a manufacturer which specialized in the R&D and production of high purity chemical reagents and pharmaceutical intermediates. The main products include LC-MC grade solvents, HPLC reagents (GG grade,PA grade and PREP grade), Karl Fischer reagents, Anhydrous solvents, high purity solvents, gas chromatography standards etc.
Our production base was covered an area of 25000 square meters, with 6 production lines. The annual output of HPLC reagents is more than 6000tons.
We are Concord Technology Co.,ltd that is leading Chinese manufacturer of high purity chemical reagents with ISO9001 Certificated. We have 26 years production experience on HPLC solvents and Karl Fischer reagents, we can supply high quality products with competitive price.
Supplier: Crude oil, cement, charcoal, flour, palm kernel oil, palm kernel seed, river sand, white beans, bitumen, turkey, parboiled rice, used car, motor oil, diesel
Supplier: Chemicals, minerals, agro products, steel, aluminium, copper, scaffolding products, minerals, scrap, washing machine parts, refrigerator parts, micro oven parts & auto parts.
Buyer: Chemicals, minerals, agro products, steel, aluminium, copper, scaffolding products, minerals, scrap, washing machine parts, refrigerator parts, micro oven parts & auto parts.
Supplier: Steel alloys, non ferrous metals, chemicals, machinery, power plants, universal joint shafts, gear spindle couplings, textile packaging machines
Services: Liaison representatives & service providers
Buyer: Steel alloys, non ferrous metals, industrial chemicals and machinery
Roche is a pharmaceutical and diagnostics company that produces a wide range of products, including reagents for laboratory use. Reagents are substances or compounds used in chemical analysis or other laboratory procedures to detect, produce, or measure other substances. Roche Diagnostics, a division of Roche, is known for manufacturing diagnostic solutions, including a variety of reagents for clinical chemistry, immunoassays, molecular diagnostics, and more. The specific reagents produced by Roche can vary widely depending on the application and the diagnostic platform.
Ketone Reagent 10Parameter Urine Test Strips(Pack of 100) Specifications: Keep away from light and moisture Contains 100 test strips in sealed single pack. Immediately close cap and do not remove desiccants Do not touch areas of reagents strips while testing as well as during result Read instructions before use Please note : This product is For Ketone analysis only (Not for Glucose) Description Ketone Reagent Test Strips for Urinalysis â?? Contains Pack of 100 Test Strips in sealed retail box pack.
Supplier: Crude oil, bonny light crude oil, blco, wti, lpg, lng, diesel (d2,d6), jet fuel a1, en590 ulsd 10ppm, rebco, espo, lco, gasoline 91,92,95, bitumen, ifo cst 180, industrial chemicals, laboratory glassware, equipment, laboratory equipment & instruments, medical equipment, chemicals, glassware, plastic wares, filter papers & other laboratory consumables, reagents
Commodity:Sodium persulfate Molecular Formula : Na2S2O8 Molecular weight : 238.13 Description Sodium persulfate is a white,crystalline,odourless salt.It is used as initiator for the Polymerization of monomers and as a strong oxidizing agent in many applications.It has the particular advantage of being almost non - hygroscopic,of having a particularly good storage stability as a result of its extremely high purity and of being easy and safe to handle. Transportation Road/Rail transport : GGVS,GGVE,ADR,RID/CLASS 5.1 Sea transport : GGV Sea/IMDG code : CLASS 5.1 Page 5185,UN no.1505 Water hazards class 1(slight water hazard) All information is given in good faith,but without warranty,since the conditions of use are outside our control. Verification by the user is recommended.Freedom from patent restriction cannot be assumed. Package (1) In 25kgs net multiple paper bags with one PE bag inner (2) In 25kgs net PE bags (3) In 25kgs net woven bags with two PE bags inner (4) In 1000kgs net big woven bags with one PE bag inner The above package is also with a pallet 1000kgs each. Storage NPS(SPS) is not combustible but assists combustion materials due to release of oxygen.Provided it is stored under appropriate condition.It must be stored dry in closed containers and protected from direct sunlight,heat and humidity.Impurities such as dirt,rust or traces of metal and reductants may cause catalytic decomposition.The product as supplied or in solution needs to be handled with appropriate care.The eye,skin and clothes must be protected when working with NPS(SPS) as damp powder or aqueous solution has a bleaching and slightly corroding effect. Application Polymerization : Initiator for the emulsion or solution Polymerization of acrylic monomers,vinyl acetate,vinyl chloride etc.and for the emulsion co-polymerization of styrene,acrylonitrile,butadiene etc. Metal treatment : Treatment of metal surfaces(e.g. in the manufacture of semiconductors; cleaning and etching of printed circuits),activation of copper and aluminium surfaces. Cosmetics : Essential component of bleaching formulations. Paper : modification of starch,repulping of wet - strength paper. Textile : Desizing agent and bleach activator - particularly for cold bleaching.(i.e.bleaching of Jeans). Others : - Chemical synthesis - Water treatment(decontamination) - Waste gas treatment,oxidative degradation of harmful substances(e.g.Hg) - Disinfectant ITEMS SPECIFICATIONS Appearance white crystalline salt Assay 99.0% w/w min Active oxygen 6.65% w/w min Chloride and chlorate(as CL) 0.005% w/w max Ammonia (NH4) 0.05% w/w max Manganese(Mn) 0.0001% w/w max Iron(Fe) 0.001% w/w max Heavy metals(as Pb) 0.001% w/w max Moisture 0.05% w/w max Decomposition of the product as supplied at above 65C Recommended storage temperature Normal Temperature Storage stability as from date of delivery 12 months
[Technical Indicators] 1. Industrial grade Indicator Name/Indicator Value Powdered Products (F) Needle Products (Z) Level 92 Level 93 Level 95 Level 92 Level 95 Appearance White or light yellow powder, without caking White or yellowish needle-like, without lumps Active matter,% 92.0 93.0 95.0 92.0 95.0 Free oil,% 1.2 1.2 1.2 2.0 1.5 Inorganic salt,% Sodium sulfate 5.8 4.8 2.5 4.8 2.5 Sodium chloride 0.15 0.15 0.15 0.15 0.15 Moisture,% 2.0 2.0 2.0 4.0 3.0 PH value (1% aqueous solution) 7.5-9.5 7.5-10 Whiteness (WB), 90 2. Toothpaste grade Indicator Name/Indicator Value Toothpaste Grade (Y) (I) Level (II) Level (III) Level Appearance White or yellowish powdery or needle-like, without caking Active matter,% 95.0 93.0 93.0 Free oil,% 1.2 1.2 1.2 Inorganic salt,% Sodium sulfate 2.5 3.2 4.0 Sodium chloride 0.15 0.15 0.15 Moisture,% 2.0 2.0 3.0 PH value (1% aqueous solution) 8-9.3 8-9.3 8-10 Whiteness (WB), 90 Foaming capacity/mm 180 Heavy metal (as Pb)/ (mg/Kg), 15 Arsenic content (as As)/ (mg/Kg), 3 Total bacterial count/ (CFU/G), 100 Total number of molds and yeasts/ (CFU/G), 100 Fecal coliforms/G Not to be detected Pseudomonas aeruginosa/G Not to be detected Staphylococcus aureus/G Not to be detected  3. Latex grade Indicator Name/Indicator Value Latex grade (powder, needle, liquid) Aggregate grade Seed level Liquid K12 Appearance White or yellowish powdery or needle-like, without caking Light yellow transparent liquid Active matter,% 94.0 92 28.5-30.5 Free oil,% 0.8-1.0 1.5-2.0 1.5 Inorganic salt,% Sodium sulfate 3.0 3.0 1.5 Sodium chloride 0.15 0.15 0.05 Moisture,% 3.5 3.5 - PH value (1% aqueous solution) 8-10 7.5-9.5 Whiteness (WB), 90 - Color Klett (30% active), - 60 4. Reagent grade Indicator Name/Indicator Value Reagent grade Level 99% Level 97% Appearance White flaky crystals White powder Solubility (1%, alcohol) Completely dissolved Solubility (10%, aqueous solution) Completely dissolved Chroma APHA (20%, deionized water), 15  - Active matter (%), â?¥ 99 (on dry basis) 97 Petroleum ether soluble matter (%), 0.2 1.0 Sodium sulfate (%), 0.5 1.5 Sodium chloride (%), Moisture (%), 1.0 2.0 PH value (1% aqueous solution) 6.0-8.0 6.0-11 Phosphate, 1ppm - Lead (Pb), 2ppm Iron (Fe), 1ppm Nitrogen, 5ppm - Arsenic (As), 0.1ppm Fraction content (%), 99.0 Absorbance (3%, deionized water) 230nm 0.4 260nm 0.1 280nm 0.1 - 410nm 0.01
