MSDS of Sodium Metasilicate - Engineering - http://maxpages.com/jpchemical/MSDS_of_Sodium

SODIUM METASILICATE, PENTAHYDRATE

Disclaimer:
JPCHEMICAL NET provides the information contained herein in good faith but makes no representation as to its comprehensiveness or accuracy. This document is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose. ACCORDINGLY, JPCHEMICAL NET, INC. WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE UPON THIS INFORMATION.

IDENTIFICATION

TRADE NAME : Sodium Metasilicate Pentahydrate
OTHER NAMES : Disodium Trioxosilicate
U.N. NO. : 3253
DG CLASS : 8
SUB RISK : None Allocated
PACKAGING GP : III
HAZCHEM : 2X
POISON SCHEDULE : S5
USES : Used in the formulation of household and industrial detergents; metal treatment; as a binder in the preparation of refractory bricks, castings etc.; Ceramic Industry - as a component to increase the fluidity of the water slurry of clay.

PHYSICAL DESCRIPTION/ PROPERTIES
Appearance: White granules or powder
Melting Point: 72.2°C
Boiling Point: Not Available
Apparent Specific Gravity: 0.9 - 1.1 kg/dm3
Vapor Density (air=1): Not Available
Vapor Pressure (20°C): Not Available
pH (1% solution): 12 - 12.8
Flash Point (closed cup): Not Available
Flammability Limits (%): Not Available
Solubility in water: 26% @ 20°C
Reactivity: Reacts violently with acids (especially HF) or with acid producing substances by generating heat. Reacts with certain metals (e.g. Aluminium) by generating hydrogen. Dissolves in water with a slight exothermic reaction due to hydration and hydrolysis.

INGREDIENTS
Chemical Name CAS Number Proportion
Sodium Metasilicate Pentahydrate 6834 - 92 - 0 >99%

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. Symptoms that may arise if the product is mishandled are:
ACUTE EFFECTS -
SWALLOWED: Swallowing can result in gastro-intestinal irritation, nausea, vomiting and burns to mouth and throat.
EYE: Can cause inflammation or irritation and even kerato-conjunctival burns.
SKIN: Contact may cause irritation or dermatitis.
INHALED: Vapor may be irritant to mucous membranes and respiratory tract. In severe cases congestion of the lungs can occur causing shortness of breath followed by unconsciousness.
CHRONIC EFFECTS
Repeated or prolonged skin contact may cause defatting of the skin leading to irritation and dermatitis.
FIRST AID
SWALLOWED: If conscious rinse mouth with water and then give water or milk 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 attention.
SKIN: Wash contaminated skin with plenty of soap and water. Remove contaminated clothing and wash before re-use. If irritation occurs 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 not breathing give artificial respiration. Seek medical advice.
ADVICE TO DOCTOR
Treat symptomatically.
TOXICITY
Oral LD50 (rat): 1280 mg/kg

PRECAUTIONS FOR USE
EXPOSURE STANDARDS
Recommended hygiene standard: 5mg/m3
The recommended hygiene standard (TWA) is the time-weighted average airborne concentration over an eight-hour working day, for a five-day working week over an entire working life.
ENGINEERING CONTROLS
Use adequate general or local exhaust ventilation to keep fume or dust level as low as possible.
PERSONAL PROTECTION
Avoid skin and eye contact and inhalation of dust or vapor. Wear overalls, chemical goggles and impervious gloves. Use with adequate ventilation.
If inhalation risk exists wear approved dust mask. Always wash hands before smoking, eating, drinking or using the toilet.
FLAMMABILITY
The product is non-combustible.

SAFE HANDLING INFORMATION
STORAGE AND TRANSPORT
Defined as Dangerous Goods - Australian Code for Transport of Dangerous Goods by Road and Rail.
Store in a closed environment. Store in well ventilated area. Store away from fluorinated polymers or aluminium.
SPILLS
Ensure adequate ventilation. Wear protective equipment to prevent skin and eye contamination. Sweep up but avoid generating dust. Collect and seal in clearly labelled drums for disposal. Wash down area with large quantities of water.
DISPOSAL
Refer to State Land Waste Management Authority.
FIRE/EXPLOSION HAZARDS
Non combustible product.
Extinguishing media: water spray, foam, carbon dioxide or dry chemical powder.
Fire-fighters to wear proper protective equipment and self -contained breathing apparatus.

OTHER INFORMATION AND REFERENCES
Hazard Category: Corrosive
RISK PHRASES
R34: Causes burns.
R37: Irritating to respiratory system.
SAFETY PHRASES
S (1/2) Keep locked up and out of reach of children.
S13: Keep away form food, drink and animal foodstuffs.
S24/25: Avoid contact with eyes and skin.
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).

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Page Updated Fri Dec 12, 2008 8:48am EST