cobalt chloride hexahydrate
cobalt chloride hexahydrate
CAS: 7791-13-1
Molecular Formula: Cl2CoH12O6
cobalt chloride hexahydrate - Names and Identifiers
cobalt chloride hexahydrate - Physico-chemical Properties
| Molecular Formula | Cl2CoH12O6 |
| Molar Mass | 237.93 |
| Density | 3.35 |
| Melting Point | 86 °C |
| Boling Point | 1049 °C |
| Water Solubility | Soluble in water, ether, acetone and alcohol. |
| Solubility | 191g/l |
| Vapor Presure | 40 mm Hg ( 0 °C) |
| Appearance | Form Solid, color Red-purple |
| Specific Gravity | 1.924 |
| Color | Red-purple |
| Exposure Limit | ACGIH: TWA 0.02 mg/m3 |
| Merck | 14,2437 |
| PH | 4.9 (50g/l, H2O, 25℃) |
| Storage Condition | Store at +5°C to +30°C. |
| Sensitive | Hygroscopic |
| Physical and Chemical Properties | Character red monoclinic crystal. melting point 86 ℃ relative density 1.924 solubility soluble in water, soluble in ethanol, acetone and ether. |
| Use | Used as paint desiccant, ammonia absorbent, neutral dye, drying indicator, ceramic colorant, feed additive |
cobalt chloride hexahydrate - Risk and Safety
| Risk Codes | R49 - May cause cancer by inhalation R22 - Harmful if swallowed R42/43 - May cause sensitization by inhalation and skin contact. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R68 - Possible risk of irreversible effects R60 - May impair fertility |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S22 - Do not breathe dust. 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. |
| UN IDs | UN 3260 8/PG 2 |
| WGK Germany | 2 |
| RTECS | GG0200000 |
| TSCA | Yes |
| HS Code | 28273400 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | LD50 orally in rats: 766 mg/kg (Speijers) |
cobalt chloride hexahydrate - Upstream Downstream Industry
| Raw Materials | Ammonium hydroxide Sodium carbonate Cobalt Hydrogen peroxide Sulfuric acid Nitric acid Hydrochloric acid |
| Downstream Products | Streptomycin sulfate Gentamycin Solution |
cobalt chloride hexahydrate - Nature
Open Data Verified Data
red or magenta monoclinic crystals. Deliquescence. Soluble in water, glycerol, ethanol, acetone, ether. Melting Point 87 C; d20 1.924. The aqueous solution thereof is changed to a blue color by heating or adding concentrated hydrochloric acid, chloride or an organic solvent. Boiling of the aqueous solution, followed by the addition of ammonia, generates the basic salt of the chlorinated drill. The solution was also Blue in light. At 30~35 ℃, the crystallization began to be weathered and turbid, and heated at 45~50 ℃ for 4H, it almost completely changed into cobalt chloride tetrahydrate. When heated at 52~56 °c, four crystal water are lost to become dihydrate, and when heated to 120~140 °c, six crystal water are completely lost to become Anhydrous cobalt chloride. This product is non-flammable, toxic, irritant, with sensitization. There are no specific combustion and explosion characteristics. Toxic and corrosive flue gas is generated by high thermal decomposition.
Last Update：2024-01-02 23:10:35
cobalt chloride hexahydrate - Preparation Method
Open Data Verified Data
add relative density to cobalt hydroxide 1. 19 hydrochloric acid to solution was weakly acidic, filtered and the filtrate was evaporated to a relative density of 1. 46~1. 47, cooling crystallization, drying, cobalt chloride.
Last Update：2022-01-01 09:01:43
cobalt chloride hexahydrate - Use
Open Data Verified Data
analytical reagent for microanalysis of zinc. It is also used as an ammonia absorbent, an indicator of humidity and moisture, and in the manufacture of barometers, hydrometers, hidden inks, and the like.
Last Update：2022-01-01 09:01:43
cobalt chloride hexahydrate - Safety
Open Data Verified Data
rats were given oral LDso:766mg/kg. Inhalation of this product dust is irritating to the respiratory tract. Long-term inhalation causes severe lung disease. Production workers shall be protected. Mixing with alkali metals, edible chemicals, etc. is strictly prohibited.
Last Update：2022-01-01 09:01:44
cobalt chloride hexahydrate - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxicity | inhalation of cobalt chloride dust, sometimes bronchial asthma. For example, when 500 mg is entered into the human body in one day, it will cause loss of appetite, vomiting, diarrhea, facial and limb redness. Grinding cobalt chloride can cause acute dermatitis, a large number of scattered red papules and small nodules, edema; sometimes the surface of the formation of ulcers. Production workers should wear work clothes, anti-virus masks, prevent dust inhalation and damage to respiratory organs, wear protective gloves and other labor protection supplies, production equipment should be closed, and the workshop should be well ventilated. |
| use | used as paint drier, military poison gas and ammonia absorbent, beer foam stabilizer, color-changing silica gel drying indicator, glass and ceramic colorant, etc. as feed nutrition fortifier. for electroplating. Used as glass and ceramic colorant, paint drier, ammonia absorbent. Manufacture of cobalt catalyst, manufacture of color-changing silica gel wet and dry indicator. Make hidden ink. Used as a beer foam stabilizer. The livestock industry formules compound feed as a supplement to cobalt. Used as paint desiccant, ammonia absorbent, neutral dye, drying indicator, ceramic colorant, feed additive, etc. |
| production method | the cobalt metal method adds hydrochloric acid to a human reactor, then gradually adds cobalt metal to dissolve it and heat it to 80 ℃ for reaction, and depending on the dissolution of cobalt metal, Nitric acid is appropriately added, the resulting cobalt chloride solution is purified with hydrogen peroxide to remove iron, and sodium carbonate or ammonia water is added to adjust if necessary to ensure complete purification. The purified cobalt chloride solution was adjusted to Ph2 ~ 3 with hydrochloric acid. After filtration, evaporation to boiling, cooling crystallization, centrifugal separation, drying, the production of cobalt chloride finished products. Its Co 2HCl → CoC12 H2 cobalt-containing waste method dissolves various cobalt-containing waste (leftovers) through nitric acid, hydrochloric acid, sulfuric acid, and converts human sodium sulfide into NiS · CoS. NiS()4 ·(30S()4 is obtained by air oxidation, human caustic soda is added, chlorine gas is introduced, and cobalt hydroxide and nickel sulfate solution are separated. Cobalt hydroxide is added to hydrochloric acid for reaction to generate cobalt chloride. After filtration, it is washed with water to obtain a crude chloride drill, which is refined by adding hydrogen peroxide, and then evaporated and concentrated, cooled and crystallized, centrifuged and dried to obtain a finished product of cobalt chloride. Its Co(OH)2 2HCl → CoCl2 2H2O The production of cobalt chloride adopts the metal cobalt method and the cobalt-containing waste method. In industry, metal processing and cobalt-containing waste from the electronics industry are generally used as raw materials and dissolved with mixed acids (hydrochloric acid and nitric acid). Add hydrochloric acid to the reactor, then put cobalt-containing waste into the reaction at 80°C, and add nitric acid as appropriate depending on the dissolution of metal cobalt. Cobalt chloride solution is purified with hydrogen peroxide to remove iron. if the pH of the solution is less than 5, sodium carbonate or ammonia water is added to ensure complete purification. The purified cobalt chloride solution is adjusted to PH to 2-3 by calculation, and the finished product is obtained by filtration, evaporation, crystallization and separation. |
| category | toxic substances |
| toxicity classification | poisoning |
| acute toxicity | oral administration-rat LD50 766 mg/kg; Abdominal cavity-mouse LD50: 90 mg/kg |
| flammability hazard characteristics | non-combustible; high heat decomposes toxic chloride smoke |
| storage and transportation characteristics | warehouse low temperature, ventilation, drying |
| fire extinguishing agent | water, carbon dioxide, dry powder, sand |
Last Update：2024-04-09 20:52:54
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cobalt chloride hexahydrate
METHYL 3-HYDROXYISOXAZOLE-5-CARBOXYLATE
2-A-HYDROXYURSOLIC ACID
Amitriptyline HCl
METHYL 3-HYDROXYISOXAZOLE-5-CARBOXYLATE
2-A-HYDROXYURSOLIC ACID
Amitriptyline HCl
Raw Materials for cobalt chloride hexahydrate
Downstream Products for cobalt chloride hexahydrate