W/W
Portuguese translation: m/m (massa/massa)
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| 20:53 Dec 7, 2017 |
| English to Portuguese translations [PRO] Tech/Engineering - Chemistry; Chem Sci/Eng | |||||||
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|  Selected response from: Matheus Chaud Brazil Local time: 16:36 | ||||||
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| 4 | m/m (massa/massa) |
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| 4 | solução a 30% peso/peso |
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| 4 | fração mássica, percentagem em peso |
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| Discussion entries: 2 | |
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Answers
7 mins confidence: 
| w/w m/m (massa/massa) Explanation: Unidade de concentração (weight/weight) |
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12 mins confidence:
| w/w solução a 30% peso/peso Explanation: é uma forma de expressar a concentração de uma solução. Primeiro o soluto e depois o solvente. p. ex. uma solução de sais em água, se expressa peso/volume :em inglês w/v; se fossem dois líquidos poderiam ser volume/volume: vol/vol ou v/v. Ai no seu caso, se decidiu expressar pela massa de ambos os componentes. -------------------------------------------------- Note added at 13 mins (2017-12-07 21:07:25 GMT) -------------------------------------------------- http://www.iun.edu/~cpanhd/C101webnotes/aqueoussolns/wwpcnt.... |
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40 mins confidence:
| w/w fração mássica, percentagem em peso Explanation: Diria assim em PT(pt), ver: IATE: Domain Chemistry Related 1350088 , 1704845 , 1704844 , 3511632 , 3511695 Broader 3511725 en Definition mass of a constituent divided by the total mass of all constituents in the mixture Definition Ref. IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: goldbook.iupac.org... (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8 goldbook.iupac.org/M0... [10.12.2009] Note Not to be confused with the concept of mass concentration ( IATE:1350088 ). Term mass fraction (Preferred) Reliability 3 (Reliable) Term Ref. IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: goldbook.iupac.org... (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8 goldbook.iupac.org/M0... [4.8.2010] Date 10/12/2009 Term by weight Reliability 3 (Reliable) Term Ref. Science Company > Info & How To > Laboratory Procedures > Preparing Chemical Solutions > by weight (w/v), www.sciencecompany.co... [4.2.2013] Context As an example, let's consider a 12% by weight sodium chloride solution. Such a solution would have 12 grams of sodium chloride for every 100 grams of solution. Context Ref. Weight Percent. Clackamas Community College, Hal Bender: dl.clackamas.cc.or.us... [30/1/2013] Date 30/01/2013 Term weight by weight Reliability 3 (Reliable) Term Ref. Regulation (EC) No 440/2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) 32008R0440/EN Date 10/12/2009 Term weight-in-weight Reliability 3 (Reliable) Term Ref. BioEd Online > Slide sets > Solutions and Dilutions, www.bioedonline.org/s... [4.8.2010] Context Perhaps the easiest way to describe a solution is in terms of weight-in-weight (w/w). The weight of the solvent, relative to the weight of the final solution, is described as a percentage. For example, suppose you are working with a dye that is soluble in alcohol. Rather than write the instructions, "take 3 grams dye and mix with 97 grams absolute alcohol," you can describe the solution simply as 3% dye in absolute alcohol. Context Ref. BioEd Online > Slide sets > Solutions and Dilutions, www.bioedonline.org/s... [4.8.2010] Date 11/12/2009 Term percent by weight Reliability 3 (Reliable) Term Ref. Gustavus Adolphs College > Cell Biology Laboratory Manual > Appendix A: Units and Measures, homepages.gac.edu/~ce... [4.8.2010] Date 24/09/2003 Term weight for weight Reliability 3 (Reliable) Term Ref. "weight for weight". Grand Dictionnaire Terminologique, www.granddictionnaire... [4.8.2010] Date 28/10/2005 Term percentage by weight Reliability 3 (Reliable) Term Ref. Patrick J. Sinko, Alfred N. Martin. Martin's Physical Pharmacy and Pharmaceutical Sciences books.google.com/book... [10.12.2009] Context Percentage by weight signifies the number of grams of solute per 100 g of solution. A 10% by weight (w/w) aqueous solution of glycerin contains 10 g of glycerin dissolved in enough water (90 g) to make 100 g of solution. Context Ref. Patrick J. Sinko, Alfred N. Martin. Martin's Physical Pharmacy and Pharmaceutical Sciences books.google.com/book... [10.12.2009] Term Note Loose term that is used by some authors to mean w/v and others to mean w/w ( IATE:2218219 ). See also percentage by volume ( IATE:1704845 ). Date 16/07/2015 Abbreviation w/w Reliability 3 (Reliable) Term Ref. BioEd Online > Slide sets > Solutions and Dilutions, www.bioedonline.org/s... [4.8.2010] Context 3. Reagents 3.1. Hydrogen peroxide, w (w/w) = 30 %. 3.2. Formic acid, w (w/w) = 98 %-100 %. Context Ref. Regulation (EC) No 152/2009 laying down the methods of sampling and analysis for the official control of feed 32009R0152/EN Date 28/10/2005 Term percentage by mass (Deprecated) Reliability 2 (Minimum reliability) Term Ref. Bureau International des Poids et Mesures (ed.), "Le Système international d’unités. The International System of Units", 8th ed., BIPM, Sèvres Cedex, 2006, ISBN 92-822-2213-6, p. 134, www.bipm.org/utils/co... [4.8.2010] Context Phrases such as "percentage by mass", "percentage by volume", or "percentage by amount of substance" should not be used; the extra information on the quantity should instead be conveyed in the name and symbol for the quantity. Context Ref. Bureau International des Poids et Mesures (ed.), "Le Système international d’unités. The International System of Units", 8th ed., BIPM, Sèvres Cedex, 2006, ISBN 92-822-2213-6, p. 134, www.bipm.org/utils/co... [4.8.2010] Date 17/12/2009 pt Term fração mássica Reliability 3 (Reliable) Term Ref. Nabais, R., Engenharia do Ambiente, Escola Superior Agraria, Instituto Politécnico de Coimbra, Portugal, 2001 Term Note AO90 Date 30/11/2016 Term percentagem em peso Reliability 3 (Reliable) Term Ref. Pauta Aduaneira Notex CCD 28.23 Date 30/11/2016 Term percentagem ponderal Reliability 3 (Reliable) Term Ref. Mecânica dos Solos. Vol.1: Conceitos e Princípios Fundamentais, books.google.pt/book... [30.11.2016] Context A composição granulométrica é definida como a distribuição em percentagem ponderal (isto é, em percentagem do peso total) das partículas do solo de acordo com as suas dimensões. Context Ref. Mecânica dos Solos. Vol.1: Conceitos e Princípios Fundamentais, books.google.pt/book... [30.11.2016] Date 30/11/2016 |
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