クロム酸ジアンモニウム 化学特性,用途語,生産方法
外観
黄色～黄褐色, 結晶～結晶性粉末
溶解性
水に可溶, エタノールに不溶。
用途
メッキ剤、触媒､顔料、酸化剤。
化学的特性
Ammonium chromate is a yellow crystalline
compound which can be used in solution, which is yellow
with an ammonia odor.
使用
Ammonium chromate, is used in photography as a sensitizer for gelatin coatings. It's often used in photography, textile printing, and fixing chromate dyes on wool. It is also used as an analytical reagent, catalyst.
危険性
Toxic by inhalation, strong irritant. Con-
firmed carcinogen.
安全性プロファイル
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.
職業ばく露
It is used to inhibit corrosion and in
dyeing, photography and many chemical reactions. Used as
a fungicide and fire retardant.
輸送方法
UN3288 Toxic solids, inorganic, n.o.s., Hazard
Class: 6.1; Labels: 6.1-Poisonous materials, Technical
Name Required.
純化方法
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.
不和合性
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.
廃棄物の処理
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.
クロム酸ジアンモニウム 上流と下流の製品情報
原材料
準備製品