TANNIC ACID AR/ACS

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Category: Acids-Organic

Description
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Description

Gallotannin, Tannin

Article No.	06192	Grade	AR/ACS
Purity		CAS No.	1401-55-4
Molecular Formula	C₇₆H₅₂O₄₆	Molecular Weight	1701.22
H.S. Code	3201.9090	Shelf Life	60 Months

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Physical Properties

Physical state at 20 °C	Solid	Colour	Light brown
Odour	Faint odour	Melting point/ Freezing point [°C]	218 °C
Decomposition point [°C]	200 °C	Auto-ignition temperature [°C]	527 °C
Flash point [°C]	199 °C	Solubility in water [% weight]	Soluble in water

Specifications

Appearance	Yellowish white to light brown amorphous powder
Identity (IR)	Passes test
Identification	Passes test
Reaction of aqueous solution	Passes test
Dextrins, gum, salts, sugars	Passes test
Resinous substances	Passes test
Heavy metal (as Pb)	Max 0.003%
Zinc (Zn)	Max 0.005%
Arsenic (As)	Max 0.0003%
Loss on drying (at 105°C)	Max 12%
Residue on ignition	Max 0.5%

Packings

100 g	00100
250 g	00250
500 g	00500

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