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L(+)-Tartaric acid
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Chemical name : dextro-rotation-2,3- dihydroxy
butanedioic acidMolecular formula : C4H6O6 Molecular weight
:150.09Use : mainly used in chemical preparation of sour,
chemical preparation of resolution and pharmaceutical materials.
It can be used in high-level candy, cold drink and wine in
food industry, also used in preservative and stabilizer. In
textile industry it can be used in resist agent of printing
and dying.
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Index name
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Content
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99.7%-100.5%(on dry
base)
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Specific rotatory power(20℃)
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+12.0° to +13.0 °
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Heavy metal
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≤ 10 mg/kg
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Oxalate
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According to the
FCCⅣ
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Sulfate ash
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≤0.05%
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Sulfate (SO4)
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Fass FCCⅣ
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Loss on drying
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≤0.5%
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Arsenic(As)
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≤2mg/kg
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Potassium
bitartrate |
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Chemical Name : Potassium
bitartrateMolecular Formula : C4H4KO6Molecular Weight :
188.18Description : Colorless and rhombic crystals, Density :
1.948(18 )Soluble in water acidic and alkaline solutions,
Slightly soluble in dry alcohol used to make baking powder and
medicine which is helpful to discharge excrement & urine
and also used to make tartrates acid salts.Application :
foodstuff, medicineSpecification: |
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Index
name |
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Content |
99-101% |
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Clarity test |
qualified |
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Chlorine |
150ppM |
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PH |
3.6 |
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Lead |
<1ppm |
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Sulfate |
50ppM FassFCC:3test |
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Potassium tartrate |
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Molecular formula :C4H4K2O6.1/2H2OProperties
: colorless crystals or white crystalline power, soluble in
water, insoluble in ethanol. |
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name |
AR |
CP |
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content |
99.0% |
99.0% |
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Chloride |
0.002 |
0.01 |
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Sulfate |
0.005 |
0.01 |
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Phosphate |
0.002 |
0.005 |
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iron |
0.0005 |
0.001 |
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Heavy metal |
0.0005 |
0.001 |
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Water insoluble matter |
0.0005 |
0.001 |
| SODIUM TARTRATE |
| Chemical
Name:sodium tartrate
Molecular Formular: C4H4O6Na2·2H2O
Molecular Weight: 230.08
Chacater: Colorless crystals or white crystal powder,specific
gravity is 1.818, lose two molecular water at 150°C,freely
soluable in water,the aqueous solution assumes alkalescence,insuable
in alcohol.
Specification: Complies with Q/JL 005-98
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| Item |
Index |
| Content
(on dry basis)=% |
98.0 |
| Arsenic(As) %;=% |
0.0003 |
| Heavy metals (Pb)%;=% |
0.001 |
| Chloride(Cl) %;=% |
0.05 |
| Sulphate(SO4) %;=% |
0.05 |
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Uses:
Served as minim analytical mensuration of vanadium,
the demarcation of Carl Wilhelm Scheele reagent , and
is served as screen dose and complexing agent,biochenistry
reagent and stabilizer and foodstuff additive etc.
Packing: In 25kg polyethylene bag with
woven bag or kraft bag outside
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sulfurous
acid
M.F.:H2SO3
Index(%)
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Technical
requirements\specifications |
AR |
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Content |
≥6% |
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draff |
0.005 |
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Chloride(CL) |
0.0005 |
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Fe |
0.0003 |
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As |
0.00002 |
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Heavy metal(Pb) |
0.0002 |
Potassium
metabisulphite
M.F.:K2S2O5
Standard:HG3-917-84
Index(%) |
Technical
requirements\specifications |
AR |
CP |
Special
grade |
Content |
95.0 |
94.0 |
92.0 |
Clarity test |
Up to standard |
Up to standard |
Up to
standard |
Water insolubility |
0.005 |
0.02 |
0.05 |
Chloride(CL) |
0.005 |
0.01 |
- |
Fe |
0.0005 |
0.002 |
- |
As |
0.0001 |
0.0003 |
- |
Heavy metal(Pb) |
0.001 |
0.002 |
0.002 |
Copyright © 2002,The Great
Wall Bio-chemical Engineering Co.,Ltd.All Rights Reserved.
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