Chemical Grade Definitions by American Chemical Society ACS

Chemical Grade Definitions by American Chemical Society (ACS. ) 1. A. C. S. A chemical grade of highest purity and meets or exceeds purity standards set by American Chemical Society (ACS). 2. Reagent High purity generally equal to A. C. S. grade and suitable for use in many laboratory and analytical applications. วสทธ กงวานตระกล 4

Chemical Grade Definitions by American Chemical Society (ACS. ) 3. U. S. P. A chemical grade of sufficient purity to meet or exceed requirements of the U. S. Pharmacopeia (USP); acceptable for food, drug, or medicinal use; may be used for most laboratory purposes. 4. N. F. A grade of sufficient purity to meet or exceed requirements of the National Formulary (NF). วสทธ กงวานตระกล 5

Chemical Grade Definitions by American Chemical Society (ACS. ) 5. Lab A chemical grade of relatively high quality with exact levels of impurities unknown; usually pure enough for educational applications. Not pure enough to be offered for food, drug, or medicinal use of any kind. วสทธ กงวานตระกล 6

Chemical Grade Definitions by American Chemical Society (ACS. ) 6. Purified Also called pure or practical grade, and indicates good quality chemicals meeting no official standard; can be used in most cases for educational applications. Not pure enough to be offered for food, drug, or medicinal use of any kind. วสทธ กงวานตระกล 7

Chemical Grade Definitions by American Chemical Society (ACS. ) 7. Technical Good quality chemical grade used for commercial and industrial purposes. Not pure enough to be offered for food, drug, or medicinal use of any kind. Ultra-pure Reagents สารเคมทมความบรสทธเหมาะสมเฉพาะเทคนคงานวเคราะห เชน HPLC วสทธ กงวานตระกล 8

ไมมระบเกรด แตบอก %purity และวตถประสงคก Fluka purity grade Purity Grade Assay Ash Appearance Puriss. >99% <0. 1% No extraneous color, Homogeneous appearance Purum. >97% <0. 5% Slight extraneous color possible Pract. >90% Usually >95% <5% Deviations in color and shape possible Techn. fluctuating Considerable deviation in color and shape possible วสทธ กงวานตระกล 10

Riedel-de Haën Quality Levels Applications for analysis standard product fro analytical purposes extra pure suitable for general laboratory purposes pure suitable for synthesis and laboratory purposes raw and auxiliary materials for lab and pilot plant work tecnical วสทธ กงวานตระกล 11

A. C. S. Reagent U. S. P. N. F. Lab Purified Technical วสทธ กงวานตระกล 12

AJAX FINE CHEMICALS www. ajaxfinechem. com HPLC Reagents The range is specially made for high performance liquid chromatography. Univar Reagents The standard for analytical reagents in Australia and overseas Labchem Reagents Quality reagents for particular analysis where no official standards are applicable Unilab Reagents Reagent quality chemicals for general laboratory use. Univol Reagents Highly accurate titrants for wet chemical methods Ready for use – analytical volumetric solutions Spectroscopy Materials for UV, Visible and Atomic Absorption Spectroscopy (AAS) techniques General purpose reagents for qualitative work http: //www. apschem. com. au/finechem. html วสทธ กงวานตระกล 13

J. T. Baker Grades ANALYZED™ Reagent A grade of high quality chemicals for laboratory and specialized industrial use. BAKER ANALYZED™ ACS Reagents ULTREX®/ULTREX® II BAKER INSTRA-ANALYZED™ BAKER ANALYZED™ HPLC Reagent BAKER ULTRA RESI-ANALYZED® Reagent BAKER BIO-ANALYZED™ Reagent PHOTREX® ULTRAPURE BIOREAGENT BAKER ANALYZED™ Biochemical From. . . http: //www. mallbaker. com/Americas/catalog/features/grade. asp วสทธ กงวานตระกล 14

J. T. Baker Grades USP, NF and FCC Chemicals that conform to the requirements of the United States Pharmacopeia (USP), the National Formulary (NF), and the Food Chemicals Codex (FCC). Multi-Compendial Biotech Reagent Baker. DRY™ A group of anhydrous solvents specifically manufactured and tested for use in organic, organometallic and oligonucleotide sysnthesis. Baker. DRY™ solvents meet ACS specifications and are ready to use, eliminating the need for any further purification From. . . http: //www. mallbaker. com/Americas/catalog/features/grade. asp วสทธ กงวานตระกล 15

J. T. Baker Grades Purified Chemicals of good quality where there are no official standards or compendia, or in some cases, that meet the requirements of former compendia articles. BAKER A grade of chemicals for laboratory use, for organic synthesis, and for routine research usually controlled by physical criteria and often by assay (by GC). Practical Chemicals of sufficiently high quality for use in diverse applications. Some products may contain intermediates, isomers, or homologs. From. . . http: //www. mallbaker. com/Americas/catalog/features/grade. asp วสทธ กงวานตระกล 16

BDH Prolabo grade Grade / Quality Main Application / Characteristics Hi. Per. Solv Chromanorm HPLC Pestinorm GC / GLC Spectroso. L Spectroscopy Spectronorm Spectroscopy ARISTAR Trace analysis Normatom Trace analysis Anala. R Normapur Reagent for analytical techniques AVS Titrinorm Ready-to-use solutions of analytical reagents for volumetric titration and calibration Convol Normadose Concentrated solutions of analytical reagents for volumetric titration and calibration Pharmacopeia grade products Range of chemicals, in compliance with the European, US or other Pharmacopeia as indicated by the specification for each product. GPR Rectapur Reagents for general laboratory use Techical, Techni. Solv Reagents with limited specification for general laboratory use Electran Electrophoresis reagents Molecular biology Reagents specified for use in molecular biology applications For Biochemistry Biochemicals and enzymes Gurr IVD marked products Reagents for use in histology and pathology For microbiology Ready to use media for microbiological applications For environment use Power Pillows, reagents for environmental applications วสทธ กงวานตระกล 17

การสบคนสมบตสารเคมบนเครอขายคอมพวเตอร http: //encyclopedia. thefreedictionary. com/. . . ตวอยาง เชน http: //encyclopedia. thefreedictionary. com/barium+hydroxide Website ของบรษททผลตสารเคม http: //www. ajaxfinechem. com/ http: //www. sigmaaldrich. com/catalog/search/Advanced. Search. Page http: //www. sigmaaldrich. com/Area_of_Interest/Asia_Pacific_Rim/Singapore. html http: //www. mallbaker. com/americas/catalog/default. asp http: //catalog. bd. com/bd. Cat/display. Top 3 Categories. do. Customer? category. ID=0 http: //www. merck-chemicals. com วสทธ กงวานตระกล 18

Product No Chemical name EC No Chemical purity Packing Lot No Further Hazard information g/mole formula Physical properties m. p. = -94 b. p. = 56 d = 0. 791 CAS No Hazard symbol = 1. 3590 วสทธ กงวานตระกล 22

ANSI Z 129. 1 American National Standards Institute (ANSI) วสทธ กงวานตระกล 27

Hazardous Materials Information System (HMIS) National Paint & Coatings Association (NPCA) NFPA 704 NFPA diamond National Fire Protection Association (NFPA) From…http: //offices. colgate. edu/chemmgt/Haz. Com. Program/i-labels. html วสทธ กงวานตระกล 28

ดชน NFPA National Fire Protection Association Code 704) : 4 -Death 3 -Extreme danger 2 -Hazardous 1 -Slightly hazardous 0 -Normal Material HEALTH HAZARD ความไวไฟ สขภาพ SPECIFIC HAZARD Oxidizer OXY Acid ACID Alkali ALK Corrosive COR Use NO WATER W Radiation hazard FLAMMABLE HAZARD Flash Points 4 -Below 73 F 3 -Below 100 F 2 -Below 200 F 1 -Above 200 F 0 -Will not burn ความไวในปฏกรยา ขอมลพเศษ REACTIVITY HAZARD 4 -May detonate 3 -Shock and heat may detonate 2 -Violent chemical change 1 -Unstable if heated 0 -Stable วสทธ กงวานตระกล 30

Department of Transportation (DOT) hazard labeling system วสทธ กงวานตระกล 31

Desiccant: สารดดความชน ไมเกดปฏกรยากบสารทตองการนำความชนออก กลไกลการดดความชน • chemical reaction • physical absorption with constant relative humidity • physical absorption with variable relative humidity • physical adsorption ตวอยาง เชน alumina, silica gel, molecular sieves, สารทมรขนาดเลก lithium chloride วสทธ กงวานตระกล 47

Common drying agents for laboratory solvents and chemicals: Activated alumina Benzophenone Bentonite clay Calcium chloride Calcium hydride Calcium sulfate Copper(II) sulfate Lithium chloride Lithium hydride Lithium bromide Magnesium sulfate Molecular sieve Phosphorus pentoxide Potassium carbonate Silica gel Sodium chlorate Sodium hydroxide Sodium sulfate sodium-benzophenone Na. K, a sodium-potassium alloy วสทธ กงวานตระกล 48

Copper(II) sulfate pentahydrate Cu. SO 5 H O 4 2 Copper(II) sulfate Cupric sulfate 0 Blue vitriol 2 0 Bluestone Chalcanthite NFPA 704 Melting Point: 110 °C (− 4 H 2 O) 150 °C (423 K) (− 5 H 2 O) 650 °C decomp. Solubility in water: 31. 6 g/100 ml (0 °C) วสทธ กงวานตระกล 49

Silica Gel is available in porous, granular, and amorphous from, synthetically manufactured from the chemical reaction between sulfuric acid and sodium silicate. The internal structure of Silica Gel is composed of a vast network of interconnected microscopic pores which attract and hold water, alcohol, hydrocarbons and other chemicals by the phenomena known as physical adsorption and capillary condensation. From. . . http: //www. powerdry. co. th วสทธ กงวานตระกล 50

Trade Name Silica Gel / Sand Nontoxic Indicating Silica gel Chemical Family Sodium Silicate Chemical Name Synthetic Silica Gel / Sand Synthetic Silica Gel Formula Si. O 2 + H 2 O + Co. Cl 2 Si. O 2 + H 2 O + C 25 H 30 CLN 3 สามารถนำกลบมาใชใหมไดโดยวธการอบท ปรมาณความชน ตอ ความสามารถในการด ดความชน อณหภม ส 180 °C ส 20% Blue or Light Blue Orange or Dark Orange 35% Grey or Purple Dark Orange or Light Green 50% Compound Si. O 2 Contents (%) 99. 71 Pink or Pinkish Fe 2 O 3 Al 2 O 3 0. 03 0. 10 Ti. O 2 Light Green or Dark Green Ca. O Zr. O 2 Na 2 O Ig. loss 0. 09 0. 01 From. . . http: //www. powerdry. co. th 0. 02 วสทธ 0. 02 กงวานตระกล 51

Desiccator desiccators plate, PP polycarbonate(PC) lip & polypropylene (PP) base and polychorobutadiene ruber o-ring วสทธ กงวานตระกล 53

Product code Packing Chemical name % Assay Physical Appearance Storage temperature Hazard symbol (pictogram) วสทธ กงวานตระกล 54

Lot number EC number ACS number Chemical formula Formula weight หรอ Molecular mass (g/mole) วสทธ กงวานตระกล 55

Hazard statement RTECS code วสทธ กงวานตระกล 56

European hazard symbols for chemicals Explosive) E( Toxic) T( Corrosive) C( Oxidizing agent) O( Very toxic) T+( Highly flammable) F( Extremely flammable) F+( Harmful) Xn( Irritant) Xi( Dangerous for the environment) N( From http: //en. wikipedia. org/wiki/Chemical_hazard_symbol#Drawing วสทธ กงวานตระกล 57

Chemical Abstracts Service (CAS) a division of American Chemical Society CAS registry numbers are unique numerical identifiers for chemical compounds, polymers, biological sequences, mixtures and alloys. They are also referred to as CAS numbers, CAS RNs or CAS #s. วสทธ กงวานตระกล 58

EC-No and EC# refer to the seven-digit code (sometimes called the EC number) xxx-x that has been allocated by the Commission of the European Communities for commercially available chemical substances within the European Union. NNN – NNN - R 1 2 3 - 4 5 6 - R (N +2×N +3×N +4×N +5×N +6×N 1 2 3 4 5 6 ) = R เศษของ 11 วสทธ กงวานตระกล 60

EINECS number European Inventory of Existing Chemical Substances between 1 January 1971 and 18 September 1981. from 2 XX-X or 3 XX-X starting at 200 -001 -8 ELINCS Number European List of Notified Chemical Substances from 19 September 1981 form 4 XX-X starting at 400 -010 -9. No-longer Polymers List start with 500 -001 -0 วสทธ กงวานตระกล 61

UN numbers or UN IDs NA numbers (North America), also known as DOT numbers are four-digit numbers that identify dangerous goods hazardous substances and articles (such as explosives, flammable liquids, toxic substances, etc. ) in the framework of international transport. UN/ID NO. 1017 เปน สารคลอรน UN/ID NO. 1005 เปน สารแอมโมเนยแอน ไฮดรส วสทธ กงวานตระกล 63

UN numbers range from UN 0001 to about UN 3500 and are assigned by the United Nations Committee of Experts on the Transport of Dangerous Goods. วสทธ กงวานตระกล 64