Molecular Formula | CrH18N3O18 |
Molar Mass | 400.15 |
Density | 1.00g/mLat 20°C |
Melting Point | 60°C(lit.) |
Water Solubility | Soluble |
Vapor Presure | 1Pa at 20℃ |
Appearance | Crystalline Chunks |
Color | Dark purple to black |
Merck | 13,2246 |
Physical and Chemical Properties | Melting point 60°C water Soluble |
Use | Used in the manufacture of chromium-containing catalyst, glass, ceramic glaze, can also be used as mordant for printing and dyeing fabrics, corrosion inhibitor |
Risk Codes | R8 - Contact with combustible material may cause fire R36/38 - Irritating to eyes and skin. R34 - Causes burns R20 - Harmful by inhalation R37 - Irritating to the respiratory system R35 - Causes severe burns |
Safety Description | S17 - Keep away from combustible material. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S23 - Do not breathe vapour. |
UN IDs | UN 2720 5.1/PG 3 |
WGK Germany | 2 |
RTECS | GB6300000 |
FLUKA BRAND F CODES | 9 |
Hazard Class | 5.1 |
Packing Group | III |
red-purple monoclinic crystal. Melting point 60 °c. Soluble in water, soluble in acid and alkali, ethanol, acetone. The aqueous solution was green in color when heated and rapidly changed to a reddish purple color after cooling. Decomposition occurs when heated to 100 °c. Deliquescence. Toxic!
sucrose reduction method: chromic anhydride and nitric acid were added to the reactor with a stirrer, and sucrose was slowly added under stirring for reduction reaction to generate chromium nitrate, which was filtered, and the filtrate was sent for evaporation and concentration, cooling crystallization, centrifugal separation, preparation of chromium nitrate products.
for glass manufacturing, for ceramic glaze color and corrosion inhibitor. The printing and dyeing industry is used as a mordant. Inorganic synthesis was used to prepare each chromium-containing catalyst.
packed in plastic woven bags lined with polyethylene plastic bags, each with a net weight of 25kg. It belongs to Class II inorganic oxidant, with Hazard code number: GB 5.1 class 51522. UN N0.2720; IMDG CODE P. 5145, category 5.1. Should be stored in a cool, ventilated, dry warehouse. The packaging must be sealed and protected from moisture. Not co-stored with organics, combustibles and acids. During transport, be careful to prevent rain and sun exposure. During loading and unloading, care should be taken to prevent damp due to package rupture. Fire, water, sand, carbon dioxide fire extinguishing. Toxicity and protection: see chromic anhydride.
LogP | -3 at 20℃ |
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 (℃): 108g/0 ℃;124g/10 ℃;130g/20 ℃;152g/30 ℃ |
Use | used in the manufacture of chromium-containing catalysts, glass, ceramic glaze, can also be used as mordant for printing and dyeing fabrics, corrosion Inhibitor |
category | oxidant |
toxicity grade | poisoning |
Acute toxicity | oral-rat LD50 3250 mg/kg; Oral-mouse LD50: 2976 mg/kg |
explosive hazard characteristics | mixed with reductant, sulfur, phosphorus, etc, friction can burst |
flammability hazard characteristics | combustion, fire emission of chromium and nitrogen oxides |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Light loading and light unloading; With organic matter, reducing agent, sulfur, separate storage of phosphorus flammability |
fire extinguishing agent | water, sand, foam |
Occupational Standard | TWA 0.5 mg (chromium)/m3 |