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7789-09-5 Ammonium dichromate

product Name Ammonium dichromate
CAS No 7789-09-5
Synonyms Ammonium dichromate (VI); Dichromic acid, diammonium salt; Chromic acid (H2Cr2O7), diammonium salt; diammonium oxido-(oxido-dioxo-chromio)oxy-dioxo-chromium
Molecular Formula (NH4)2Cr2O7
Molecular Weight 252.0649
InChI InChI=1/2Cr.2H3N.7O/h;;2*1H3;;;;;;;/q;;;;;;;;;2*-1/p+2/rCr2O7.2H3N/c3-1(4,5)9-2(6,7)8;;/h;2*1H3/q-2;;/p+2
EINECS 232-143-1
Molecular Structure 7789-09-5 Ammonium dichromate
Melting point 170℃
Water solubility 360 g/L (20℃)
Hazard Symbols  E:Explosive;
 T+:Very toxic;
 N:Dangerous for the environment;
Risk Codes R2:;
R21:;
R25:;
R26:;
R34:;
R42/43:;
R45:;
R46:;
R48/23:;
R50/53:;
R60:;
R61:;
R8:;
Safety Description S45:;
S53:;
S60:;
S61:;
MSDS Material Safety Data Sheet

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Specifications £Û(NH4)2Cr2O7]Assay ¡Ý98.5%
Packing 25KG/ weave bag
Description

¡¡¡¡Product?Name:Ammonium Dichromate

¡¡¡¡CAS NO:?7789-09-5

¡¡¡¡Molecular?Formula:??Cr2H8N2O7

¡¡¡¡Molecular?Weight::?252.07

¡¡¡¡Properties:??Appearance£ºOrange monoclinic crystal or powder.

¡¡¡¡melting?point :(¡æ)£º180

¡¡¡¡stability : Soluble in water, insoluble in acetone, soluble in ethanol

¡¡¡¡Specification:

¡¡¡¡AppearanceOrange crystallization

¡¡¡¡£Û(NH4)2Cr2O7]Assay¡Ý98.5%

¡¡¡¡Water insoluble matter¡Ü0.05%

¡¡¡¡(Cl)Chloride ¡Ü1.00%

¡¡¡¡Water ¡Ü0.05%

¡¡¡¡Use: Used for barium determination. Used as a catalyst. Mordant, oxidizer and raw materials for laboratory purification. Smoke-free fireworks manufacturing. It is mainly used in photolithography, preparation and lithography of gravure printing. Used to make ceramic glaze medicine, fireworks. It is the raw material of pure nitrogen and sodium lauryl sulfonate

¡¡¡¡Packing :25KG/ weave bag

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