Molecular Formula | BeN2O6 |
Molar Mass | 133.02 |
Density | 1.02g/mLat 20°C |
Melting Point | ~60℃ [MER06] |
Boling Point | decomposes at 100–200℃ [HAW93] |
Water Solubility | g Ba(NO3)2/100g H2O: 97 (0°C), 108 (20°C), 178 (60°C); soluble alcohol [LAN05] [HAW93] |
Appearance | Liquid |
Color | Clear colorless |
Merck | 13,1174 |
PH | 0.5 (H2O, 20°C) |
Storage Condition | Store at +15°C to +25°C. |
Physical and Chemical Properties | White to yellowish crystals. Easy deliquescence. Relative density 1.557. Melting point 60 ℃. Boiling point 100~200 ℃ (decomposition). Soluble in water, soluble in alcohol. In case of mixtures of easy oxides, combustibles, sulfur, phosphorus, etc., it is easy to cause fire or explosion. In case of combustible fire, it can fuel the fire. |
Risk Codes | R49 - May cause cancer by inhalation R23 - Toxic by inhalation R36/38 - Irritating to eyes and skin. R43 - May cause sensitization by skin contact R48/23 - R36/37/38 - Irritating to eyes, respiratory system and skin. R20 - Harmful by inhalation R34 - Causes burns R26 - Very Toxic by inhalation R21/22 - Harmful in contact with skin and if swallowed. R8 - Contact with combustible material may cause fire R61 - May cause harm to the unborn child R45 - May cause cancer R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R25 - Toxic if swallowed R48/20 - |
Safety Description | S53 - Avoid exposure - obtain special instructions before use. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S23 - Do not breathe vapour. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S17 - Keep away from combustible material. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S28 - After contact with skin, wash immediately with plenty of soap-suds. |
UN IDs | UN 3264 8/PG 3 |
WGK Germany | 1 |
RTECS | DS3675000 |
HS Code | 3822 00 00 |
Hazard Class | 5.1 |
Packing Group | II |
Toxicity | LD50 ivn-mus: 3160 mg/kg CUSCAM 55,899,86 |
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 (℃): 97g/0 ℃;102g/10 ℃;108g/20 ℃;113g/30 ℃;125g/40 ℃ 178g/60 ℃ |
toxicity | high toxicity. Dust enters through the wound, so that the wound does not heal for a long time. Accidental ingestion or inhalation can poisoning. Dyspnea after poisoning, cyanosis, etc. Rat abdominal cavity LD50501 mg/kg. Production operators should wear protective clothing, wearing protective masks, latex gloves and other labor protection articles to prevent dust inhalation and protect the respiratory organs and skin. Production equipment should be closed. The workshop is well ventilated and should take a shower after work. |
Use | hardening of gas lamp and acetylene lamp shades. Used as a reagent. |
production method | beryllium oxide is added to a reactor containing water, and then nitric acid solution is added for reaction, followed by evaporation and concentration, the crystals were cooled, filtered and dried to obtain beryllium nitrate trihydrate. BeO 2HNO3 2H2O → Be(NO3)2 · 3H2O |
category | oxidant |
toxicity grade | highly toxic |
Acute toxicity | intraperitoneal-mouse LD50: 0.5 mg/kg; Subcutaneous-mouse LDL0: 50 mg/kg |
explosive hazard characteristics | mixed with reductant, sulfur, phosphorus, etc, friction can burst |
flammability hazard characteristics | is combustible in combination with organic matter, reducing agent, combustible sulfur and phosphorus; toxic nitrogen oxides and beryllium-containing fumes from combustion |
storage and transportation characteristics | low temperature drying; Light loading and light unloading; And organic matter, reducing agent, sulfur, phosphorus combustible, separate storage of food raw materials |
fire extinguishing agent | dry powder, foam, carbon dioxide, water mist |
Occupational Standard | TWA 0.002 mg (beryllium)/m3; Tel 0.006 mg (beryllium)/M3 |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |