|
|
Date of Issue : Feb 2002 1. IDENTIFICATION
General Product Name : AMMONIUM BICARBONATE Other Names : UN No. : N/A Dangerous Goods Class : None Allocated Subsidiary Risk : None Allocated Hazchem Code : N/A Pack Group : 0 EPG : N/A Poisons Schedule : N/A Uses : Product of ammonium salts, dyes, leavening agent for cookies, crackers, crea puff doughs, fire-extinguishing compounds, pharmaceuticals, degreasing textiles, blowing agent for foam rubber, boiler scale removal, compost treatment. Manufacture porous plastics, ceramics; in chrome leather tanning; to remove gypsum for heat exchanges and other processing equipment.
1.1 Physical Description / Properties
Appearance : Fine white crystal with slight ammoniacal odour. Formula : NH4HCO3 Boiling Point : N/A deg C Melting Point : N/A deg C Vapour Pressure : N/A Specific Gravity : N/A (water = 1) Flash Point : N/A pH : 7.6 (10% solution) Solubility in water : Solu g/l (25 deg C) Flammability Limits (as percentage volume in air) Lower Explosion Limit : N/A Upper Explosion Limit : N/A 1.2 Other Properties
Solubility in water = 18% w/w @ 20 deg C Bulk density = 0.9 g/cm3 Decomposes above 50 deg C 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
Ingestion of large amounts may cause gastrointestinal irritation. Expected to be a low ingestion hazard. Eye
May cause mild irritation. Skin
May cause milk skin irritation. Low hazard for usual industrial handling. Inhaled
Low hazard for usual industrial handling. Excessive inhalation may cause minor respiratory irritation. 2.2 Health Effects - Chronic
2.3 First Aid
Swallowed
Drink large amounts of water and seek medical attention without delay.
Eye
Immediately irrigate the eye with copious quantities of water. Seek medical attention if irritation persists.
Skin
Rinse off with water as soon as possible.
Inhaled
Remove to fresh air. Seek medical attention if symptoms are evident.
First Aid Facilities
Ensure an eye bath and safety shower is readily available.
2.5 Advice to Doctor
Treat symptomatically and supportively.
2.6 Toxicity Data
Oral LD50 = > 10 000 mg/kg (rat) Dermal LD50 = > 5 000 mg/kg (rabbit) Inhalation LCo = 0.139 mg/l/4h (rat) Mutagenic potential = in vitro and in vivo experiments, no evidence of mutagenic effects. Long term tests = In the following tests no adverse effects were detected: Chronic toxicity, oral, Carcinogenic effect, reproduction toxicity. In tests for chronic inhalative toxicity no irreversible changes and no signs of silicosis were discovered. Experiences with humans - Work related silicosis or other product specific illnesses of the respiratory canals were not observed.
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
Ammonium bicarbonate = not listed Ammonia gas = 25ppm (17 mg/m3) 8 hour TWA = 35ppm (24 mg/m3) 15 minute
3.2 Engineering Controls
Local exhaust ventilation should not be required. Use in a well ventilated area. Ensure that the OES (Occupational Exposure Standard) for ammonia is not exceeded.
3.3 Personal Protection
Eye protection - wear safety glasses or gogles. Respiratory protection - a dust mask should be worn. Skin protection - wear overalls and chemicl and chemical resistant gloves should be worn.
3.4 Flammability
The product is not classified as flammable or combustible. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Store in a cool, dry, ventilated place away form direct heat or sunlight. Use the usual high standards of industrial hygiene. Avoid contact with imcompatible materials such as acids, alkalis and nitrites. Shelf life or product is nominally 6 months. The product does not deteriorate either chemically or biologically after this period.
4.2 Packaging / Labelling UN No. N/A Class None Allocated Sub Risk None Allocated Hazchem Code N/A Pack Group 0 EPG No. N/A Shipping Name AMMONIUM BICARBONATE Hazard
Risk Phrases
Safety Phrases
4.3 Spills and Disposal
Spills
Clean up personnel should wear full protective gear such as overalls and chemical resistant gloves.
Small spillages - rinse away with plenty of water. Large spillages - collect up for authorised disposal.
Disposal
Small quantities - wash to the trade effluent, ensuring local water consents are maintained. Large quantities - the material should be sent to a specialised waste contractor for disposal. It is not classified as special (hazardous) waste.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Product is not classified as flammable or combustible. A limited range of ammonia/air (16-27% ammonia) mixtures can be ignited with difficulty and explosion may occur. Product may decopose above 50 deg C. Hazardous decomposition products include ammonia gas and carbon dioxide.
Extinguishing Media
Use water/water spray, carbon dioxide, dry chemical powder, alcohol or polymer foam to extinguish. Fire fighters should wear full protective gear including self-contained breathing apparatus. 5 OTHER INFORMATION
Other Information
Environmental fate and distribution - ammonium bicarbonate is very soluble in water. It has a low potential for bioaccumulation. Presistence and degradation - ammonium ion is biodegradable. The nitrogen cycle descibes how ammonia is converted to nitrate which may be assimilated into plant life. Toxicity - it is likely to have a toxic affect on fish if allowed to enter watercourses.
5.1 Contact Points
|
|||||||||||||||||||||||
|
|
|||||||||||||||||||||||
The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use.
|
|||||||||||||||||||||||
|
|
 |