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AMMONIUM CHROMATE

AMMONIUM CHROMATE
AMMONIUM CHROMATE structure
CAS No.
7788-98-9
Chemical Name:
AMMONIUM CHROMATE
Synonyms
Neutral ammonium;AMMONIUM CHROMATE;Ammonium chronate;diammoniumchromate;Ammoniummonochromat;ammoniumchromate(vi);Ammonium chromate 98%;Ammoniumchromate,98+%;neutralammoniumchromate;AmmoniumDichromate,>99%
CBNumber:
CB7123636
Molecular Formula:
CrH8N2O4
Formula Weight:
152.07
MOL File:
7788-98-9.mol

AMMONIUM CHROMATE Properties

Melting point:
180°C (dec.)
Density 
1.91 g/mL at 25 °C(lit.)
solubility 
H2O: 1 M at 20 °C, clear, yellow
form 
Crystalline
Specific Gravity
1.91
color 
Yellow-orange
Water Solubility 
Soluble in water. Slightly soluble in liquid ammonia, acetone, methanol. Insoluble in ethanol.
Merck 
14,510
CAS DataBase Reference
7788-98-9(CAS DataBase Reference)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS03,GHS05,GHS08,GHS09,GHS07
Signal word  Danger
Hazard statements  H350-H400-H272-H314-H317-H334-H350i-H410
Precautionary statements  P201-P220-P261-P273-P280-P305+P351+P338-P308+P313-P405-P501a
Hazard Codes  O,T,N
Risk Statements  49-8-43-50/53-34
Safety Statements  53-17-45-60-61-36/37/39-26
RIDADR  UN 1479 5.1/PG 2
WGK Germany  3
RTECS  GB2880000
TSCA  Yes
HazardClass  5.1
PackingGroup  III

AMMONIUM CHROMATE price More Price(1)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 216038 Ammonium chromate 98% 7788-98-9 500g $188 2018-11-13 Buy

AMMONIUM CHROMATE Chemical Properties,Uses,Production

Chemical Properties

Ammonium chromate is a yellow crystalline compound which can be used in solution, which is yellow with an ammonia odor.

Uses

Sensitizing gelatin in photography, in textile printing pastes, in fixing chromate dyes on wool, and as a reagent in analytical chemistry.

Hazard

Toxic by inhalation, strong irritant. Con- firmed carcinogen.

Safety Profile

A poison. Mutation data reported. See also CHROMIUM COMPOUNDS. A powerful oxidizer. An explosion hazard when shocked or heated. When heated to decomposition it emits toxic fumes of NH3, Cr03, and NOx. Incompatible with reducing agents.

Potential Exposure

It is used to inhibit corrosion and in dyeing, photography and many chemical reactions. Used as a fungicide and fire retardant.

Shipping

UN3288 Toxic solids, inorganic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.

Purification Methods

Crystallise it from weak aqueous ammonia (ca 2.5mL/g) by cooling from room temperature. It loses NH3 on heating to form ammonium dichromate. POISONOUS.

Incompatibilities

A strong oxidizer and an explosive. Contact with combustible, organic and other readily oxidizable substances may cause fire and explosions. Hydrazine, other reducing agents. Corrosive to metals.

Waste Disposal

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. Addition of a large volume of a reducing agent solution (hypo, bisulfite or ferrous salt, and acidify with 3 M sulfuric acid). When reduction is complete, flush to drain with large volumes of water.

AMMONIUM CHROMATE Preparation Products And Raw materials

Raw materials

Preparation Products


AMMONIUM CHROMATE Suppliers

Global( 83)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21676 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20672 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32447 55
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 sales@jushengtech.com CHINA 28236 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 sales@guangaobio.com CHINA 23049 58
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com China 40269 62
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30163 84
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 info@energy-chemical.com China 44025 61
Chengdu XiYa Chemical Technology Co., Ltd. 4008-626-111
028-84752058 sale@xiyashiji.com China 9629 57
Sinopharm Chemical Reagent Co,Ltd. 86-21-63210123
86-21-63290778 86-21-63218885 sj_scrc@sinopharm.com China 9847 79

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