#chemistry research Tumblr posts

  • unifiedcitationjournals
    20.01.2022 - 8 hours ago

    GLOBAL JOURNAL OF CHEMICAL ENGINEERING

    Global Journal of Chemical Engineering invites you to submit your paper here: https://www.ucjournals.com/global-journal-of-chemical-engineering/

    Submit your manuscripts today!

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  • stylesloveclub
    17.01.2022 - 3 days ago

    describe ur dream bf/gf/partner

    #my dream bf is a grad student . studying physics or chemistry or some science like that #he is smart but not obnoxious about it and he is clearly passionate ab the research he’s doing #he’s not an annoying gym rat but he still has yummy vlines and delicious thighs #has the ***** vibes ofc and is lowkey kinda ****** #but in the same way i am #he likes to go on walks with me #listens to me talk about books and pretends to br interested even tho he doesnt read #(he isnt allowed to be a reader bc thats my personality trait) #hes playful and funny and wears glasses in lab and at night and when hes doing his work #and altho he might not be suuper romantic he makes an effort . for me 🥺 #and is affectionate like me hopefully
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  • biggestdiscountonly
    16.01.2022 - 3 days ago

    Download research papers, theses, or books from sci-hub alternative

    Download research papers, theses, or books from sci-hub alternative

    Sci-Hub new domain 2022 and its alternatives:

    https://sci-hub-links.com

    #research science biology education covid scientist medicine phd nature technology health chemistry biotechnology laboratory innovation phdli
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  • biggestdiscountonly
    16.01.2022 - 3 days ago
    #research science biology education covid scientist medicine phd nature technology health chemistry biotechnology laboratory innovation phdli
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  • melotional
    10.01.2022 - 1 week ago

    baking soda and vinegar volcano??

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  • unifiedcitationjournals
    05.01.2022 - 2 weeks ago

    GLOBAL JOURNAL OF CHEMICAL ENGINEERING

    Global Journal of Chemical Engineering invites you to submit your paper here: https://www.ucjournals.com/global-journal-of-chemical-engineering/

    Submit your manuscripts today!

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  • newsreportblog
    05.01.2022 - 2 weeks ago

    Green Chemistry Chemicals Market Size Forecast to Reach $130 Billion by 2025

    Green Chemistry Chemicals Market size is forecast to reach $130 billion by 2025, after growing at a CAGR of 11.5% during 2020-2025. The increasing demand for greener products, the growing need for cost-effective processing, cheaper feedstocks, and new product avenues are driving the commercialization of other chemical products. Today, green chemicals are playing a significant role, as they are designed to reduce or eliminate the use or generation of hazardous substances. The COVID-19 outbreak has stopped the production process of green chemicals as various organic chemical manufacturers have been shut down. Due to this circumstance, the growth of green chemicals is getting constraint.

    By End Use Industry - Segment Analysis

    The wide range of applications of green chemistry includes uses in the pharmaceutical industry, as well as new approaches that reduce or eliminate the use of solvents, or render them safer and more efficient. Green chemistry chemicals also inspired a growing number of ways to synthesize traditionally petroleum-based chemicals from biological materials instead, often plant matter or waste. Green chemistry chemicals also play a key role in alternative energy science, and the production of new ways to make solar cells, fuel cells, and batteries for storing energy. When self-assembling molecules use bio-based plant materials, it is considered green chemistry. Because a primary goal of green chemistry chemicals is to minimize or eliminate waste in the manufacture of chemicals and allied products, it has inspired the creation of many green “next generation” catalysts. Another important development in green chemistry chemicals is the trend toward redesigning chemical products to reduce their hazard.

    #green chemistry chemicals market #green chemistry chemicals market price #green chemistry chemicals market research
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  • shilpent
    04.01.2022 - 2 weeks ago

    Quartz Disc

    • High-quality polished fused quartz material

    • Optimal purity of the material

    • Highly precise laser cut quartz discs with accurate dimensions

    • Smoothed edges to prevent cuts when handling

    • Customized industrial/research grade quartz discs

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  • ravanaugh-runner
    03.01.2022 - 2 weeks ago
    #I'm sure the extended version of this analysis is not influenced at all by the history of chemistry/alchemy research I've been doing lately #chaotic headcanon#text only
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  • pharmuccino
    03.01.2022 - 2 weeks ago

    one of my greatest accomplishments of last year was writing my very first letter of intent for a research program application. never imagined I’d be capable of doing something like that and I’m very proud regardless of my acceptance.

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  • velasciences
    28.12.2021 - 3 weeks ago
    #Chemistry Notebook #field research notebook #dura cover
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  • unifiedcitationjournals
    22.12.2021 - 4 weeks ago

    GLOBAL JOURNAL OF CHEMICAL ENGINEERING

    Global Journal of Chemical Engineering invites you to submit your paper here: https://www.ucjournals.com/global-journal-of-chemical-engineering/

    Submit your manuscripts today!

    View Full
  • sugas-sweetheart
    19.12.2021 - 1 mont ago
    #mayya 🌼 #sofia responds: moots <3 #becoming an adult is. stressful. and I’m not even one yet 😭😭 #chemistry is probably the thing I’ll go into most likely. and then forensics or research #archaeology and ancient history is just a think I’d like to study personally #so obviously my family keep asking if itll get me a good job if I did it LMAO #while I enjoy maths. studying it at degree level does not sound fun
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  • cheysfishblog
    17.12.2021 - 1 mont ago

    Swim Bladder Disorder in Fancy Goldfish: Focusing on Negative Buoyancy Disorder - An Experiment Part 2

    I’m going to be recording all of my data on here and in a personal notebook 

    ( Part 1 talks about the introduction of the experiment) 

    Days 1 - 8: 

     Water parameters were adjusting, not really stable 

    Scales, fins, eyes, slime coat on all fish appears darker and healthier 

    Tank water is getting clearer 

    water in the tank had a smell (an earthy, soil aroma) 

    Days 9 - 16: (Day 16 would be 12/18/2021) 

    water parameters are stable 

    Zulu’s buoyancy issues are adjusting BUT not in sync 

    tank water is clear 

    water in the tank doesn’t smell anymore 

    monitoring GH and TDS

    Tank parameters so far: 

    Nitrates: 20 ppm

    Nitrites/Ammonia: 0 ppm

    KH: 80 ppm 

    pH: 7.2 

    GH: ~200 ppm

    (From TDS meter) 

    383 ppm 

    814 uS/cm

    23.3 *C / 73.9 *F

    Notes: 

    ppm on the TDS meter:

    For days 1 - 7, it was below 300 ppm

    For day 8, hit the 300 mark 

    For day 9 and beyond, TDS is increasing

    ppm below 300 mainly came from nitrate levels ( and other compounds) 

    GH is increasing ppm on TDS meter ( and other compounds) 

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  • sugas-sweetheart
    11.12.2021 - 1 mont ago

    I want to do a colour theme change so bad,,, but I don’t have the time - or patience tbh - and I was just about to start using character banners that I had made and they’re in my drafts so changing theme before using them is smart but I’m lazy LMAO

    #sofia rambles #my banners are all grey white and balck of course. #but I have the urge to have a black and red or black and purple theme and AGH MAYBE A FOREST GREEN THEME OMG #but no. I have things to do smh theres so much attention I want to give this blog and I finish school for Christmas this Friday #So maybe. but at the same time. I made myself a to do list #yesterday. and I had 22 things to do LMAO not including my EPQ research 🤪 #I’m on top of chemistry. it’s just GOD GHERES SO MUCH MATHS WORK TO DO ALL THE TIME.
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  • chemicalscience-crimson
    11.12.2021 - 1 mont ago

    Annals of Chemical Science Research_ Crimson Publishers

    Trends on the Mechanical and the Optical Properties of Papers Affected by the Inorganic Additives Determined by Ash on Ignition at 900 °C and a Thermodynamic Model Applied for their Tensile Strength by  Chryssou Κ in  Annals of Chemical Science Research

    Abstract

    The extremely rapid increase in the use of A4 and A3 photocopiers and printers in recent years and some printing problems observed in them make it imperative to continue and intensify the controls carried out on copy paper samples by the General Chemical State Laboratory in Greece. Samples of photocopy papers were brought to the laboratory and their mechanical and optical properties were tested. The construction of technical specifications in collaboration with other bodies of the public sector will continue to achieve effective protection of the public and private sectors, and of the consumer public in general. Action should be taken to inform those involved in the production, import and marketing of photocopier paper and the consumer in particular about the requirements of the appropriate technical specifications and the potential risks of using unsuitable paper in modern laser printers.

    Keywords: Tensile strength; Ash on ignition at 900 °C; Pick picking IGT; CIE whiteness; Inorganic additives; Public sector

    Introduction

    A series of samples of photocopy papers A4 and A3 were brought to the GCSL from both the public and private sectors. The percent (%w/w) ash content on ignition [1] for these papers was determined during the whole year 2018. Then, the same samples were tested for their tensile strength [2] and the pick picking of the paper by an IGT tester [3], as well as for their CIE whiteness values [4,5] (Figure 1). The tensile strength, tearing resistance and folding of a paper are improved with cationic starch, or with resins of wet strength. Increased content of filling matter leads to inferior strength of the raw material of paper, but it helps to the transfer of the pigment coating to the raw material. Pigment is the major component of a pigment coating. The principal pigment is kaolin, sometimes referred to as china clay. Other pigments include calcium carbonate, titanium dioxide, aluminum trihydrate, amorphous silicas and silicates, talc, zinc oxide, barium sulfate and plastic pigments [6,7] & (Table 1). Analyses carried out in the past years from 2004 -2014, on photocopy papers A4 and A3, have shown that a trend was followed, to a better tensile strength, and better pick picking of the paper, as well as a high CIE whiteness value, accompanied to a high %w/w ash content. This trend was not followed only for the pick picking of the paper, between years 2004-2014 (Figure 2).

    Figure 1: Graphical representation of the parameters tested ash, tensile strength, CIE whiteness, resistance to pick picking for the year 2018.

    Figure 2: Graphical representation of the parameters tested on the paper samples, such as ash on ignition, tensile strength, CIE whiteness, and printability, for years 2004-2014.

    Table 1: The values of the parameters of the percent ash on ignition, the corresponding values of the tensile strength, CIE whiteness, and printability of the paper, for the 46 samples tested during the year 2018.

    For the year 2018, the trend was not followed for the tensile strength of the paper samples but was followed for the pick picking of the papers and their whiteness value, to actually increase their value as the ash content increased. For the analyses carried out during 2018, it was found that the tensile strength of the paper samples tested was depended more on the intermolecular bonding forces and the strength of the fibers of the papers than the inorganic additives. This means that the higher tensile strength was because mainly of the effect of hydrogen bonding. Generally, the amount and quality of the bonds of the paper fibers are important and affect the tensile strength. The essence of the hydrogen bond in cellulose is that the adjacent hydroxyl groups have a strong attraction for each other which may reach 5kcal/mole. Thus, a bond of fibers of high level is required to forbid the disruption or the parting of the fibers during the printing of the paper which is the final result of the paper’s use. The tensile strength is a combination of factors such as the flexibility, the bonding strength and the fiber strength. These factors are dependent on the type of fibers of the paper, the length and thickness of the fibers, the pattern of the fiber network, the number of bonds, and the strength of the individual bonds [8-10].

    A thermodynamic model for the tensile strength measurement of the papers tested in the laboratory

    A thermodynamic formalism then can be presented here by consideration of the physical properties of a paper band or better a paper strip used in the testing of its tensile strength. Let us suppose that we are building a descriptive model for the properties of the paper band used in the testing of the tensile strength. The paper band consists of a bundle of long-chain paper fibers. The quantities here of the macroscopic interest are the length L, the tension T, the temperature T, and the energy U of the paper strip. The length L plays a role analogous to the volume V (L ~ V), while the tension T plays a role analogous to the negative pressure (T~-P) (1). The main component of paper is a cellulose polymer. Cellulose is an organic compound with the formula (C6H10O5) n a polysaccharide consisting of a linear chain of several hundreds to many thousands of β (1→4) linkage D-glucose units. Αn analogue then of the mole number can be associated with the number of glycose monomer units in the paper band. That number is not generally variable and it can be taken here as a constant. A qualitative representation of the experimental observation can be summarized in two properties: First, at constant length the tension T increases with the temperature T. Second, the energy is observed to be essentially independent of the length, at least for lengths shorter than the “elastic limit” of the paper strip, a length corresponding to the straightening of the glucose (polymer) chains. The simplest representation of the latter observation can be represented by the following equation:

    Where, c is a constant and Lo is the unstretched length of the paper strip.

    The linearity of the length with tensile tension between the unstretched length Lo and the elastic limit length L1, can be represented by the following equation:

    Where, Lo < L < L1, and b is a constant.

    The insertion of the factor T of the temperature in this equation (rather than T2) is dictated by the thermodynamic condition of consistency of the two equations of state. That is as in the equation:

    Where, u and υ are the molar quantities of the energy U and the volume V respectively.

    In an analogous way, the following equation can be derived:

    Which dictates the linear factor T in equation (2).

    Then we can derive the following equation:

    Where, S is the entropy of one glucose polymer chain and the fundamental equation may be written, after integration of the molar equation as,

    This fundamental equation (6) is constructed on the basis of the qualitative of information, and it can represent the empirical properties reasonably. This model of the paper strip or the paper band illustrates the manner in which thermodynamics can guide us towards an elementary model building.

    Conclusion

    The above study showed that there must be more controls, and tests in the laboratory, for the photocopy papers sold in the market. Also, notification to all the parts involved in the chain of importing and trade of paper, as well as to the consumers, to comply with the quality technical standards already set, and the dangers involved with the use of papers which do not actually conform to them.

    For more articles on Annals of Chemical Science Research

    please click on link: https://crimsonpublishers.com/acsr/

    For more about Crimson Publishers please click on : https://crimsonpublishers.com/rmes/fulltext/RMES.000585.php

    #crimson publishers #Annals of Chemical Science Research #Chemistry open access journals #peer reviewed journal of ACSR #ACSR
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  • fukuncga
    11.12.2021 - 1 mont ago

    nah u can pry kuroo canonically being a chem nerd from my cold dead hands

    #it’s just a fun direction to take with that interest of his i think #in my mind we are phd candidates in the chemistry and biology departments respectively and our research interests happen to line up #perfectly so we reluctantly work with each other in the lab (kuroo’s environment) and out in the field (my environment) #and we work together for maybe two years until we’re like What the fuck we’re in love with each other now #do you see the vision . #just picturing me dragging him outside to like a stream or something and him having to put fishing waders on #god he would hate me.
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  • cheysfishblog
    10.12.2021 - 1 mont ago

    Stop Overmedicating your fish!!!

    I have recently made a video on my YouTube channel on common medications that are used in fish. Its extremely important that we all learn how to use them, otherwise we shouldn’t use them at all.

    That’s all.....

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  • apollonianposts
    10.12.2021 - 1 mont ago

    "Every now and then a man's mind is stretched

    by a new idea or sensation, and never shrinks

    back to its former dimensions."

    Oliver Wendell Holmes Sr.
    #science#science academia#dark academia #dark academia aesthetic #chemistry#biology#physics#astronomy#mathematics #kill your darlings #the secret history #the imitation game #the theory of everything #the way this quote always appears in my modules for biology and research
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