Hummel Croton Inc.
10 Harmich Road
South Plainfield, NJ 07080

Tel: 908-754-1800
Fax: 908-754-1815

Data Sheet
Ammonium Dichromate

Product Code 01-1060
Description Orange Red Crystalline Powder
Assay 98.5% Min
Chloride 50 ppm Max
Sulfates 300 ppm Max
Water Insolubles 0.0005% max
pH 3.5
Moisture 2.0% Max
Fixed Alkalies 0.15% Max


PACKAGING: 100 & 375 lb. Polylined Fiber Drums

USES:Ammonium Dichromate is use in engraving, lithography, mordant for dyeing, oil purification and picking. It can also be used as a catalyst in chemical reations, as ingredient in pyrotechnic formulations and in oil purification.

HANDLING: Do not store near acids, organics and other oxidizable materials or where flammable or combustible materials are stored. Reseal containers immediately after use. Store away from food and beverages. Use dust respirator when handling. OSHA PEL & ACGIH TLV-TWA have been established for this compound 0.1mg/m3 as CrO3(ceiling) & 0.05 mg/m3 as Cr(ceiling) respectively. Material is an oxidizer. This product may be subject to SARA Section 313 reporting requirements (Cr 41.24%). See SDS for more information.

PROPER SHIPPING NAME: Ammonium Dichromate

SHIPPING INFORMATION: UN# 1439, Class 5.1, P.G.II, Label Code 5.1, RQ10(4.54)

Ammonium Dichromate

CAS Number 7789-09-5
RTEC Number hx 7650000
Melting Point ~180 ° C(dec.)
Bulk Density 1.3
EINEC Number 2321431
Molecular Wt. 252.18
Molecular Formula (NH4)Cr2O7
Water Solubility 27% by wt @ 20 ° C

No warranty, expressed or implied, or merchantability, fitness for a particular purpose or otherwise is made, except that the products herein discussed comply with the chemical description on the labels. Buyer assumes risks of the use, storage and handling. Hummel shall not be liable for any incidental or consequential damages arising directly or indirectly in connection with the purchase, use, storage or handling of this product. The information contained herein is, to the best of our knowledge, true and accurate. However, all recommendations or suggestions are made without guarantee, since the conditions of use are beyond our control. We disclaim any liability incurred in connection with the use of these data or suggestions. This information is not to be taken as a license to operate under, or a recommendation to infringe any patent(s). The observance of all regulations and patents is the responsibility of the user. No agent, representative or employee of this company is authorized to vary any terms of this notice.