Phosphorous Acid|Ronas Chemicals Ind.Co.,Ltd.

MSDS of Phosphorous Acid

Material Safety Data Sheets of Phosphorous Acid

PHYSICAL DESCRIPTION/ PROPERTIES
Appearance, odour : White crystals, faint odour.
Freezing Point (85%) : 74¡ãC
Boiling Point : 200¡ãC @760 mmHg
Specific Gravity (20¡ãC) : 1.651
Vapour Pressure (20¡ãC) : Not Available.
Vapour Density (air=1) : Not Available
Flash Point (closed cup) : Not Available.
Flammability Limits (%) : Not Available.
Solubility : Soluble in alcohol
Stability & Reactivity : Not Available
Formula : H3PO3
Molecular Weight : 82
INGREDIENTS
Chemical Name CAS Number Proportion
Phosphorous 13598-36-2 >98%
Ingredients not considered Hazardous by Worksafe Australia to 100%

HEALTH HAZARD INFORMATION
HEALTH EFFECTS
No adverse health effects expected if the product is handled in accordance with this Safety Data Sheet and the product label, if applicable. Symptoms that may arise if the product is mishandled are:
ACUTE EFFECTS-
SWALLOWED: May cause severe damage to the digestive tract. May be harmful if swallowed. Causes gastrointestinal burns.
EYE: Causes eye burns.
SKIN: Causes skin burns.
INHALED: Vapour or mist may cause severe irritation to mucous membranes and respiratory tract. Symptoms include sore throat, coughing, shortness of breath and delayed lung edema.
CHRONIC EFFECTS
No information available.
FIRST AID
SWALLOWED: If swallowed, rinse mouth with water, give water to drink. DO NOT INDUCE VOMITING. Seek immediate medical assistance.
EYE: Immediately irrigate with copious quantities of water for at least 15 minutes. Eyelids to be held open. Seek medical assistance.
SKIN: Wash contaminated skin with plenty of soap and water. Remove contaminated clothing and wash before re-use. If irritation persists seek medical advice.
INHALED: Remove victim from exposure - avoid becoming a casualty. Remove contaminated clothing and loosen remaining clothing. Allow patient to assume most comfortable position and keep warm. Keep at rest until fully recovered. If breathing laboured and patient cyanotic (blue) ensure airways are clear and have qualified person give oxygen through a facemask. If breathing has stopped apply artificial respiration at once. In event of cardiac arrest, apply external cardiac massage. Seek medical assistance.
ADVICE TO DOCTOR
Treat symptomatically.

PRECAUTIONS FOR USE
EXPOSURE STANDARDS
No information available.
Nuisance dust of 10 mg/m3 (TWA) should be observed.
ENGINEERING CONTROLS
Ensure ventilation is adequate to maintain air concentrations below recommended exposure standard. Keep containers closed when not in use.
PERSONAL PROTECTION
Avoid skin and eye contact and inhalation of dust. Wear overalls, safety goggles/glasses and chemical resistant impervious gloves and safety boots. Use with adequate ventilation. If inhalation risk exists wear respirator meeting the requirements of the relevant Australian Standards.
FLAMMABILITY

SAFE HANDLING INFORMATION
Product is not flammable.
STORAGE AND TRANSPORT
Store in cool dry, well-ventilated place in closed packs. Do not store with incompatible products such as oxidising agents. Store away from foodstuffs.
This product is classified as a Class 8 corrosive substance according to the Australian Code for the transport of dangerous goods by road and rail.
Refer to State Regulations for storage and transport requirements.
SPILLS
Increase ventilation. Wear protective equipment to prevent skin and eye contamination and inhalation of dust. Sweep up but avoid generating dust. Collect and place in properly labelled drums for disposal. If contamination of sewers or waterways has occurred advise the local emergency services,
DISPOSAL
Refer to State Land Waste Management Authority.
FIRE/EXPLOSION HAZARDS
On burning will emit toxic fumes. Hazardous decomposition products: phosphine, oxides of phosphorus. Fire fighters to wear full protective clothing and self-contained breathing apparatus if risk of exposure to vapour or products of combustion.
EXTINGUISHING MEDIA: Dry chemical powder.

OTHER INFORMATION AND REFERENCES
ENVIRONMENTAL IMPACT
Avoid contaminating waterways.
TOXICITY
Oral LD50 (rat): 1895 mg/kg
Hazard Category: Harmful/Corrosive
RISK PHRASES
R22: Harmful if swallowed.
R34: Causes burns
SAFETY PHRASES
S25: Avoid contact with eyes.
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).