L(+)POTASSIUM HYDROGEN TARTRATE
Molecular formula KHC4H4O6
Structural formula HOOC(CHOH)2·COOK
M.W. 188.18
Description Colorless or white crystalline powder with sweet and sour taste, sparingly soluble in water, freely soluble in dilute mineral acid, alkaline solution or borax solution and insoluble in acetic acid or ethanol, relative density (d204)1. 984.
Specification
HG3-1227-79

Item

Index

Content%

99.0-99.5

Chloride(Cl)≤%

0.01

Sulphate(SO4)≤%

0.015-0.02

Phosphate (PO4)≤%

0.002

Arsenic(As)≤%

0.0002

Loss on drying (105,3h)≤%

0.5

Iron(Fe) ≤

0.005

Heavy metals (on Pb)≤%

0.002

Clarity test

Pass


JSFA-V

Item

Index

Content (on dry basis)%

99.0-101.0

Clarity

Pass test

Sulphate≤%

0.02

Ammonium salts

Pass test

Heavy metals (on Pb)≤%

0.002

Arsenic (As)≤%

0.0004

Loss on drying≤%

0.5

Specific Rotation +32.5 ~ +35.5

US FCC (III)

Item

Index

Content (on dry basis)%

99.0-101.0

Heavy metals (on Pb)≤%

0.002

Arsenic (As)≤%

0.0003

Ammonia (NH3)

Pass test

Insoluble matter

Pass test

Lead≤%

0.001

Specific Rotation +32.5 ~ +35.5
Use

Used as capacity analytical reagent, buffer and reducing agent, also as leavening agent in food industry.

Packaging In 25Kg P/E bags covered with woven bags.
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