Name | Cadmium nitrate tetrahydrate |
Synonyms | C.I.77192 C.I. 77192 dusicnankademnaty cadmium dinitrate CADMIUM NITRATE, 4-HYDRATE CADMIUM NITRATE TETRAHYDRATE Cadmiumdinitratetetrahydrate Cadmium nitrate tetrahydrate CADMIUM (II) NITRATE, HYDROUS cadmium(+2) cation nitrate tetrahydrate |
CAS | 10022-68-1 |
EINECS | 638-751-7 |
InChI | InChI=1/Cd.NO3.4H2O/c;2-1(3)4;;;;/h;;4*1H2/q+2;-1;;; |
InChIKey | QOYRNHQSZSCVOW-UHFFFAOYSA-N |
Molecular Formula | CdH8N2O10 |
Molar Mass | 308.48 |
Density | 2,45 g/cm3 |
Melting Point | 59.5°C(lit.) |
Boling Point | 132 °C |
Flash Point | 132°C |
Water Solubility | Soluble in water.(109 g/100ml)at 0 C and (326 g/100ml)at 60 C.Soluble in ammonia, acetone and alcohol. |
Appearance | Solid |
Specific Gravity | 2.45 |
Color | White |
Exposure Limit | ACGIH: TWA 0.01 mg/m3; TWA 0.002 mg/m3NIOSH: IDLH 9 mg/m3 |
Merck | 14,1622 |
BRN | 8156730 |
Stability | Stable. Incompatible with reducing agents, organic materials, phosphorus, copper, copper alloys, organic materials. Strong oxidizer - contact with combustible materials may lead to fire. |
Physical and Chemical Properties | White rhomboid or needle-like crystals. The relative density of 2.455(17/4 deg C). Melting point 59.4 °c. Boiling Point 132 °c. Soluble in water, ethanol, liquid ammonia, acetone, ethyl acetate, insoluble in concentrated nitric acid. Deliquescence in air. When heated to 70~80 ℃, the water of crystallization is lost to form anhydrous substance, and when heated to above 360 ℃, nitrogen oxide is released to form cadmium oxide. As an oxidant, contact with organic matter can cause combustion and explosion. Toxic! |
Risk Codes | R45 - May cause cancer R8 - Contact with combustible material may cause fire R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R48/23/25 - R26 - Very Toxic by inhalation R25 - Toxic if swallowed R61 - May cause harm to the unborn child R60 - May impair fertility R46 - May cause heritable genetic damage |
Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36/37 - Wear suitable protective clothing and gloves. S28 - After contact with skin, wash immediately with plenty of soap-suds. |
UN IDs | UN 3087 5.1/PG 2 |
WGK Germany | 3 |
RTECS | EV1850000 |
TSCA | Yes |
HS Code | 28342990 |
Hazard Class | 5.1 |
Packing Group | II |
colorless orthogonal crystal. Deliquescence. Soluble in 0.6 water, soluble in ethanol, acetone, ethyl acetate, insoluble in concentrated nitric acid. Melting Point: 59.4 °c; Boiling Point: 132 °c. Thermal decomposition of toxic nitrogen oxides and cadmium-containing smoke.
reagents for the determination of zinc and ferrocyanide. Used as catalyst, preparation of cadmium salt and photographic emulsion.
oral administration of LDso in rats: 300mg/kg, rabbit skin 500mg/24h severe stimulation, rabbit eye 20mg/24h moderate stimulation. Stored in a ventilated, low-temperature, dry warehouse, and stored separately from food raw materials.
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
solubility in water (g/100ml) | grams dissolved per 100ml of water at different temperatures (℃): 122g/0 ℃;136g/20 ℃;150g/30 ℃;194g/40 ℃ 310g/60 ℃; 313g/80 ℃ |
toxicity | cadmium compounds are highly toxic. Chronic poisoning appears when the smell is reduced, "cadmium rhinitis", Head Pain, dizziness, loss of appetite, stomach pain, Nausea, Vomit, weight loss, urine protein. The victim will be moved to a fresh air location. Try to be quiet and warm. Respiratory irritation symptoms should be inhaled hot and humid 2% sodium bicarbonate solution, drinking hot milk containing soda or alkaline mineral water. The maximum allowable concentration of soluble cadmium salts in the United States is 0.2 mg/m3. Production personnel should wear protective masks, rubber aprons, latex gloves and work clothes at work. Rinse your mouth during and after work. Production equipment should be closed and the working environment should be well ventilated. Production workers should have regular medical examinations. |
Application | is used in the manufacture of catalysts and batteries. Cadmium-containing agents, etc. It is a raw material for the manufacture of other cadmium salts and cadmium oxide. They are used as colorants for glass and ceramics, as emulsifiers for photographic films, and as reagents for the determination of zinc and ferrocyanide. cadmium nitrate is used as a colorant for glass and ceramics, an emulsifier for photographic films, and an analytical reagent. It is also used in the manufacture of other cadmium salts and cadmium oxides, catalysts, batteries and cadmium-containing agents. |
production method | metal cadmium method the Electrolytic metal cadmium is added into an acid-resistant reactor containing ion-free water, gradually adding 30% ~ 35% dilute nitric acid, when the reaction tends to be slow, the reaction is gradually heated to 70-80 ℃ for 6-8H to make the reaction solution neutral, the filtrate is fed to an evaporator until a thin film is formed on the surface of the solution. Then sent to the crystallizer for cooling crystallization, by centrifugal separation, dry in the air, prepared cadmium nitrate product. Its Cd 4HNO3 → Cd(NO3)2 2H2O 2NO2) reaction process in the evolution of nitric oxide gas, toxic, treatment method see sodium nitrate absorption method. |
category | toxic substances |
toxicity grade | high toxicity |
Acute toxicity | oral-rat LD50: 300 mg/kg |
stimulation data | Skin-rabbit 500 mg/24 h severe; eye-rabbit 20 mg/24 h moderate |
flammability hazard characteristics | thermal decomposition of toxic nitrogen oxides, cadmium smoke |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Stored separately from food raw materials |
extinguishing agent | water, carbon dioxide, foam, dry powder |
Occupational Standard | TWA 0.05 mg (cadmium)/m3 |