AMMONIUM CHROMATE
- Product Name
- AMMONIUM CHROMATE
- CAS No.
- 7788-98-9
- Chemical Name
- AMMONIUM CHROMATE
- Synonyms
- Neutral ammonium;Ammonium chronate;AMMONIUM CHROMATE;diammoniumchromate;Ammoniummonochromat;ammoniumchromate(vi);Ammoniumchromate,98+%;Ammonium chromate 98%;neutralammoniumchromate;AmmoniumDichromate,>99%
- CBNumber
- CB7123636
- Molecular Formula
- CrH8N2O4
- Formula Weight
- 152.07
- MOL File
- 7788-98-9.mol
AMMONIUM CHROMATE Property
- 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
- Exposure limits
- ACGIH: TWA 0.0002 mg/m3; STEL 0.0005 mg/m3 (Skin)
OSHA: Ceiling 0.1 mg/m3
NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3 - CAS DataBase Reference
- 7788-98-9(CAS DataBase Reference)
- EPA Substance Registry System
- Ammonium chromate (7788-98-9)
Safety
- 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
- Hazardous Substances Data
- 7788-98-9(Hazardous Substances Data)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H272May intensify fire; oxidizer
H314Causes severe skin burns and eye damage
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H350May cause cancer
H410Very toxic to aquatic life with long lasting effects
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 216038
- Product name
- Ammonium chromate
- Purity
- 98%
- Packaging
- 500g
- Price
- $190
- Updated
- 2021/12/16
- Product number
- ING0002296
- Product name
- AMMONIUM CHROMATE
- Purity
- 95.00%
- Packaging
- 100G
- Price
- $2472.31
- Updated
- 2021/12/16
- Product number
- ING0002296
- Product name
- AMMONIUM CHROMATE
- Purity
- 95.00%
- Packaging
- 500G
- Price
- $4396.82
- Updated
- 2021/12/16
AMMONIUM CHROMATE Chemical Properties,Usage,Production
Chemical Properties
Ammonium chromate is a yellow crystalline compound which can be used in solution, which is yellow with an ammonia odor.
Uses
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.
Uses
Reagent for the preparation of a solid heterogeneous oxidizing agent for liquid phase oxidation of alcohols.
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
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View Lastest Price from AMMONIUM CHROMATE manufacturers
- Product
- Ammonium chronate 7788-98-9
- Price
- US $0.00-0.00/KG
- Min. Order
- 10mg
- Purity
- 99%
- Supply Ability
- 2000tons
- Release date
- 2020-01-16
- Product
- AMMONIUM CHROMATE 7788-98-9
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 20 tons
- Release date
- 2021-10-18
- Product
- AMMONIUM CHROMATE 7788-98-9
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 98%HPLC
- Supply Ability
- 10tons
- Release date
- 2020-01-09