China Factory for L(+)-tartaric acid for Serbia Manufacturers

China Factory for L(+)-tartaric acid for Serbia Manufacturers

Short Description:

CAS NO.87-69-4 DESCRIPTION: Colorless or translucent crystals, or a white, fine granular, crystalline powder. It is odorless, has an acid taste, and is stable in air. Chemical Name:L-2,3-dihydroxy butanedioic acid Molecular Formula:C4H6O6 Structural Formula: Molecular Weight:150.09 Assay(after drying), as:+12 ~ +13 Arsenic :2mg/kg Max Lead [Ph]:2mg/kg Max Residue on Ignition:0.05% Max Residue on Drying:0.5% Max Oxalate test:Qualified MAIN FUNCTION AND PURPOSE: L(+)-Tartaric acid is widely us...


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We have been also specializing in improving the things administration and QC system to ensure that we could preserve terrific gain within the fiercely-competitive company for Food Grade Tartaric Acid , Retardant Agent , L-Potassium Sodium Tartrate Seller , We sincerely welcome overseas consumers to consult for your long-term cooperation as well as the mutual advancement.We strongly think that we will do superior and far better.
China Factory for L(+)-tartaric acid for Serbia Manufacturers Detail:

CAS NO.87-69-4

DESCRIPTION:

Colorless or translucent crystals, or a white, fine granular, crystalline powder. It is odorless, has an acid taste, and is stable in air.

Chemical Name:L-2,3-dihydroxy butanedioic acid

Molecular Formula:C4H6O6

Structural Formula:

Molecular Weight:150.09

Assay(after drying), as:+12 ~ +13

Arsenic :2mg/kg Max

Lead [Ph]:2mg/kg Max

Residue on Ignition:0.05% Max

Residue on Drying:0.5% Max

Oxalate test:Qualified

MAIN FUNCTION AND PURPOSE:

L(+)-Tartaric acid is widely used as acidulant in beverage,and other foods, such as soft drinks, wine, candy, bread and some colloidal sweetmeats. With its optical activity, L(+)-Tartaric acid is used as chemical resolving agent to resolve DL-amino-butanol, an intermediate for antitubercular drug. And it is used as chiral pool to synthesize tartrate derivatives. With its acidity, it is used as catalyst in the resin finishing of polyester fabric or pH value regulator in oryzanol production. With its complexation, L(+)-Tartaric acid is used in electroplating, sulfur removal and acid pickling. It is also used as complexing agent, screening agent or chelating agent in chemical analysis and pharmaceutical inspection, or as resist agent in dyeing. With its reduction, it is used as reductive agent in manufacturing mirror chemically or imaging agent in photography. It can also complex with metal ion and can be used as cleaning agent or polishing agent of metal surface.

 

PACKING:25KG net in Kratf/Plastic Bag lined with PE bag, 20MT/20FCL (on pallet).

STORAGE:Kept airtightly in a light-proof, dry and cool place.


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Our enterprise since its inception, often regards solution excellent as enterprise life, continually strengthen output technology, enhance product high quality and continually strengthen organization total high-quality administration, in strict accordance using the national standard ISO 9001:2000 for China Factory for L(+)-tartaric acid for Serbia Manufacturers, The product will supply to all over the world, such as: Chad, Saint Vincent and the Grenadines, New Delhi, Actually need to any of those objects be of interest to you, make sure you allow us to know. We'll be delighted to present you a quotation on receipt of one's comprehensive specs. We've our individual specialist R&D enginners to meet any of the requriements, We look forward to receiving your enquires soon and hope to have the chance to work together with you inside the future. Welcome to take a look at our organization.


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    This video shows how a titration curve is constructed using data from the titration of a weak acid with a strong base. It also summarizes some of the important features of this Weak Acid-Strong Base titration curve, such as the buffer region and the pH at the equivalence point.

    http://www.BCLearningNetwork.com.

    0:00a titration curve is a graph which shows
    0:05how the ph of an acid solution changes
    0:08as a base is added to it or how the ph
    0:11of a base solution changes as an acid is
    0:14added to it here will consider the
    0:16addition of a strong base to a solution
    0:19which is initially a weak acid strong
    0:23base will use in our example is point
    0:25one molar naoh and the weak acid will
    0:28use this point 1 molar ch3cooh we have
    0:32initially added 25 mils a point 1 molar
    0:35ch3cooh to the beaker
    0:38a pH meter will be used to monitor the
    0:41ph of the mixture in the beaker below
    0:43the burette what we’ll do is draw a
    0:46graph of the ph and the beaker versus
    0:49the volume of any wage added to the
    0:51ch3cooh in the beaker will start at the
    0:55point where we haven’t added any base to
    0:57the point 1 molar ch3cooh yet this is
    1:01just a PA 2.1 molar acetic acid ch3cooh
    1:08using a nice table and ka calculations
    1:11we can determine that the ph a point 1
    1:14molar ch3cooh is 2.87
    1:19as we add the first four milliliters of
    1:21any wage the ph rises fairly quickly
    1:30between formula
    1:31isn’t 22 milliliters the rate of
    1:33increase in pH or the slope shows an
    1:36obvious decrease
    1:44during the time represented by this
    1:46section of the graph we’re adding any
    1:49oh2 the weak acid ch3cooh but the weak
    1:52acid is still in excess
    1:54so the any wage will react with some of
    1:57the acid
    1:59forming water and the salt sodium
    2:01acetate na ch3cooh because any wage was
    2:07the limiting reagent it will all be
    2:09consumed
    2:11and the quantity of water formed is
    2:13insignificant compared to the water
    2:15already in the solution so we’ll discard
    2:18the formula for water
    2:22so at this point we have a mixture of a
    2:24weak acid and the salt of its conjugate
    2:27base
    2:29you may recall that a mixture of a weak
    2:31acid and the salt of its conjugate base
    2:33constitutes a buffer solution
    2:36remember a buffer solution minimizes the
    2:39change in pH when the base is added
    2:42the decrease in the rate of change of ph
    2:45due to the buffering effect causes the
    2:48slope of the curve to stay fairly
    2:49shallow during this region
    2:52this slightly flattened out portion of a
    2:55weak acid strong base titration curve is
    2:58called the buffer region
    3:00when we add more any wage the buffer is
    3:03overcome and the ph rises quickly
    3:10when we’ve added 25 milliliters a point
    3:131 molar any wage to 25 milliliters a
    3:15point 1 molar ch3cooh the moles of any
    3:19wage is equal to the moles of CAC Co age
    3:22so we’ve reached the equivalence point
    3:24of this titration the pH at the
    3:27equivalence point of this titration is
    3:298.72 note that this is higher than the
    3:33pH of 7 observed with strong acid strong
    3:36base titrations
    3:38at the equivalence point we’ve added
    3:40point 0 0 25 moles of any wage 2.00 25
    3:44moles of ch3cooh
    3:47the coefficient ratio of na chto all to
    3:51any wage is 121
    3:54so the point 0 0 25 moles of ch3cooh and
    3:59point 0 0 25 moles of any wage will
    4:02completely react with each other
    4:05and they will form point 0 0 25 moles of
    4:08NAC h3c old
    4:11so all we have at the equivalence point
    4:13is point 0 0 25 moles of NAC h3 coo
    4:19this salt dissociates into na+ and CH 3t
    4:23old- science
    4:26na+ is a neutral spectator so we discard
    4:29it
    4:33and were left with ch3cooh minus ions
    4:36this is a week based
    4:40because all we have is a weak base in
    4:42water
    4:43the solution is basic and the ph of the
    4:45equivalence point is greater than 7 this
    4:48is true for all weak acid strong base
    4:51titrations now we’ll proceed with the
    4:53titration as we add three more
    4:56milliliters of any wage to bring us to a
    4:58total volume of 28 the ph goes up
    5:01quickly then starts to decrease and its
    5:04slope

    The accounts manager made a detailed introduction about the product, so that we have a comprehensive understanding of the product, and ultimately we decided to cooperate.

    5 Stars By Barbara 2016-10-17 12:04
    This is a honest and trustworthy company, technology and equipment are very advanced and the prodduct is very adequate, there is no worry in the suppliment.








    5 Stars By Claire 2016-6-18 15:41

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