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Date of Issue : May 1999 1. IDENTIFICATION
General Product Name : ASCORBIC ACID Other Names : L-ASCORBIC ACID ; VITAMIN C 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 : Nutrition, colour fixing, flavouring and preservative in meats and other foods, oxidant in bread doughs, abscission of citrus fruit in harvesting, reducing agent in analytical chemistry. The iron, calcium and sodium salts are available for biochemical research.
1.1 Physical Description / Properties
Appearance : White crystals or powder with no odour. Formula : C6H8O6 Boiling Point : Decom deg C Melting Point : 190 deg C Vapour Pressure : N/A Specific Gravity : N/A (water = 1) Flash Point : N/A pH : 2.2 (50g/L in water) Solubility in water : >200 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
Soluble in ethanol Bulk density: 450 -550 kg/m3 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
Adverse effects are not expected. Eye
Eye contact with the dust or powder may result in slight irritation. Skin
Skin contact with the dust or powder is not expected to cause irritation. Inhaled
Inhalation of dust or powder may result in slight respiratory irritation. 2.2 Health Effects - Chronic
Skin sensitisation reactions may occur if this product is frequently handled by hypersensitive persons.
2.3 First Aid
Swallowed
If swallowed, rinse out mouth then drink 1 - 3 cups of water. If effects occur/persist seek medical advice.
Eye
If eye contact occurs, rinse thoroughly under running water for 15 minutes with eyelids held open. Seek medical attention if irritation persists.
Skin
If skin contact occurs, wash thoroughly under running water. Remove contaminated clothing and launder thoroughly before reuse.
Inhaled
If discomfort is felt after inhalation of dust or powder, remove affected person to fresh air. If effects persist seek medical advice.
First Aid Facilities
Ensure an eye bath and safety shower are available and ready for use.
2.5 Advice to Doctor
Treat symptomatically based on judgement of doctor and individual reactions of patient.
2.6 Toxicity Data
Oral LD50 = > 10,000 mg/kg (Rat) Dermal LD50 = not available Inhalation LC50 = not available
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
An exposure standard has not been established for this product, however the following exposure limit is recommended : TWA 10 mg/m3.
3.2 Engineering Controls
Ensure workplace is well ventilated to maintain air concentrations below exposure stabdard, including the use of loca; exhaust ventilation. Breathing must be protected when decanting large quantities of product without local exhaust ventilation.
3.3 Personal Protection
Avoid inhalation of dust. The following protective equipment is recommended : Protective glasses with side shields. Protective gloves (PVC/Rubber/Neoprene/ Nitrile/Butyl Rubber). Dust mask if exposure standard is likely to be exceeded. Suitable industrial clothing. Protective equipment used should comply with relevant n Standards. Wash hands and face thoroughly before work breaks and before going home.
3.4 Flammability
Not flammable under conditions of use. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Not classified as a dangerous good for transport by road or rail according to the n Dangerous Goods Code. Not classified as a dangerous good for storage. Keep containers tightly sealed. Store in a cool, dry area. Ensure all storage areas are well ventilated. Protect from heat, moisture, and light. Do not store in metal containers. Do not store or transport with oxidising substances or alkalies. Take precautionary measures against static discharges. Avoid dust formation. Sources of ignition should be kept clear.
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 ASCORBIC ACID Hazard
Risk Phrases
Safety Phrases
4.3 Spills and Disposal
Spills
Avoid dust formation. Sources of ignition should be kept clear. Clean up personnel should wear suitable clothing with protective glasses, gloves and approved dust mask.
Sweep or shovel up spills together with dust binding agent or use a vacuum cleaner. DO NOT let product directly enter drains or water courses. Place waste in labelled drums for disposal.
Disposal
Small amounts of waste can be disposed together with industrial waste to approved landfill in accordance with local regulations. Flush away spill area residues with copious amounts of water. Waste should be disposed of by incineration in accordance with all Local, State and Federal regulations at an approved waste disposal facility.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Risk of dust explosions. Take precautionary measures against static discharges. particularly when handling or decanting large quantities of product. If involved in a fire, the product can emit acrid smoke and irritating fumes. Incompatible with oxidising substances and alkalies. Thermal decomposition will occur at 190 deg C.
Extinguishing Media
Fire-fighters should wear self-contained breathing apparatus for fire only. In case of fire, use water, foam, carbon dioxide or dry chemical type extinguishers. Contain and dispose of fire debris and contaminated extinguishants in accordance with local regulations. 5 OTHER INFORMATION
Other Information
The degradation activity of the activated sludge in effluent treatment plants should not be affected if this product is discharged correctly in low concentrations. The product is readily biodegradable. Toxicity to fish : LC50 > 1000 < 2200 mg/L/96h (Golden Orfe) Toxicity to bacteria : EC/LCLo 90 mg/L/16h
5.1 Contact Points
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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.
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