Name | Zinc chloride |
Synonyms | Zinc chloride zinc dichloride Zincchlorideultradry Zinc chloride solution Zinc chloride, anhydrous Zinc Chloride, MB Grade (1.08811) |
CAS | 7646-85-7 |
EINECS | 231-592-0 |
InChI | InChI=1/2ClH.Zn/h2*1H;/q;;+2/p-2 |
InChIKey | JIAARYAFYJHUJI-UHFFFAOYSA-L |
Molecular Formula | ZnCl2 |
Molar Mass | 136.315 |
Density | 1.01 g/mL at 20 °C |
Melting Point | 293℃ |
Boling Point | 732 °C (lit.) |
Flash Point | 732°C |
Water Solubility | 432 g/100 mL (25℃) |
Vapor Presure | 33900mmHg at 25°C |
Appearance | white crystalline |
pKa | pKa 6.06 (Uncertain) |
PH | 5 (100g/l, H2O, 20℃) |
Stability | Hygroscopic |
Physical and Chemical Properties | Character white hexagonal granular crystal or powder. melting point 283 ℃ boiling point 732 ℃ relative density 2.91 soluble in water, soluble in methanol, ethanol, glycerol, acetone, ether, insoluble in liquid ammonia. |
Use | Used as dehydrating agent, Catalyst, mordant, sizing agent, weighting agent, preservative, also used in electroplating, dyes, pharmaceuticals, pesticides and other industries |
Hazard Symbols | C - Corrosive N - Dangerous for the environment |
Risk Codes | R22 - Harmful if swallowed R34 - Causes burns R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. 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 2331 |
WGK Germany | 2 |
RTECS | TY2900000 |
FLUKA BRAND F CODES | 3 |
TSCA | Yes |
HS Code | 28273600 |
Hazard Class | 3 |
Packing Group | I |
Toxicity | Inhalation of zinc chloride fumes can injure lungs and respiratory tract. Dusts or fumes also cause dermatitis, boils, conjunctivitis, and gastrointestinal tract upset (Lewis(Sr), R.J. 1996. Sax’s Dangerous Properties of Industrial Materials, 9th ed. New York: Van Nostrand Reinhold). |
white crystalline powder. Relative density 2. 911, melting point 100 ℃, boiling point 732 ℃. Easily deliquescent, easily soluble in water, ethanol, ether and other solvents, but also soluble in fatty amines, pyridine, aniline and other nitrogen-containing solvents, insoluble in liquid ammonia and ketone.
zinc oxide in a metered ratio was added to a reactor containing a certain amount of hydrochloric acid and reacted to produce a zinc chloride solution. After standing precipitation, purification and filtration, the filtrate was concentrated by evaporation and crystallized to obtain zinc chloride.
corrosion inhibitor for water treatment. Zinc chloride is soluble in water, and insoluble colloidal particles are produced by hydrolysis in water, so that the composite corrosion inhibitor is colloidal turbid and not clear and transparent. With time, these insoluble colloidal particles gradually aggregate and precipitate. In order to inhibit the precipitation of zinc salts in the composite corrosion inhibitor, a small amount of acidic substances such as H2 S04, HCI, H3 P04 or glacial acetic acid are usually added.
non-combustible. Irritant to skin and mucous membrane. Anhydrous and concentrated solution can cause skin ulcers. Inhalation of dust can cause Dyspnea. Abnormal function of digestive and circulatory system. After skin contact, rinse with 2% sodium bicarbonate solution. Personal protective equipment must be worn by workers who produce and use zinc sulfate. Should be stored in a cool and dry place, to prevent rain, moisture, to prevent sun exposure. They shall not be co-stored and transported with acid, alkali and colored substances.