MATERIAL SAFETY DATA SHEETS
PRODUCT: SODIUM BISULPHIDE
SOLD AS: Premium Quality Dry Acid, PH MINUS
Date of issue: 19 July 2003
STATEMENT OF HAZARDOUS NATURE
Classified as hazardous according to criteria of WorkSafe Australia
COMPANY DETAILS
Company : Premium Quality Pool Products Pty Ltd
Address: 13-15 Nelson Avenue Padstow NSW 2211
Telephone: (02) 9790 8777
Facsimile: (02) 9790 8555
PRODUCT IDENTIFICATION
Product Name: Sodium Bisulphide
Other Names: Sodium hydrogen sulphide, Sodium bisulphide,
Sodium mercaptan, Sodium sulphydrate, Sodium
hydrogen sulphide, Sodium Sulphide, Sodium
hydrosulphide.
UN Number: 2949
DG Class: 8 Corrosive
Packing Group: 2
Hazchem Code: 2X Hazchem Code
Poisons Schedule: Toxic Substance
Use: Used as a leather depilatory, pulping agent in paper
production, flotation agent and bleaching reagent.
PHYSICAL DESCRIPTION AND PROPERTIES
Appearance: Colourless needles to lemon-yellow flakes.
Hydrogen sulphide odour (rotten eggs).
Specific Gravity (20潞C): 1.79
Melting Point (C): 350.0
Rel Vapour Density (air=1): N Av
Boiling Point (C): N/A
Vapour Pressure (20潞C): N Av
Decomp. Point (C): N Av
Flash Point (C): N Av
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pH (30% solution: 10-11
Flammability Limits (%): N/A
Viscosity: N/A
Autoignition Temp (C): N Av
Evaporation Rate: N/A
% Volatile by volume: N Av
(n-Butyl acetate=1)
Solubility in water: Soluble (Typical values only 鈥? consult specification
sheet)
COMPOSITION
CAS-No.: 16721-80-5
Molecular Formula: H-Na-S
HEALTH HAZARD INFORMATION
No adverse health effects expected if the product is handles in accordance with this
Safety Data Sheet and the product label. Symptoms that may arise if the product is
mishandled are:
Effects from Acute Exposure
Swallowed: Can cause chemical burns to gastrointestinal tract,
nausea, vomiting, diarrhoea and abdominal pain.
Eyes: A severe eye irritant. Contamination of the eyes
can result in permanent injury. Corrosive to eyes;
contact can cause corneal burns.
Skin: Contact with skin will result in severe irritation.
Corrosive to skin 鈥? may cause skin burns.
Inhalation: Inhalation of dust may result in respiratory
irritation. Exposure to moisture, heat or acids can
result in the formation of hydrogen sulphide gas.
At low concentrations of hydrogen sulphide (50 to
500 ppm) irritation of the mucous membranes and
respiratory tract can occur (2,3). At higher
concentrations (600 ppm) nausea, dizziness and
oedema occur (3). Lethal hydrogen sulphide
toxicity following inhalation of 1000to 2000 ppm
paralyses the respiratory system and breathing
ceases. Loss of sense of smell can occur at
concentration of 150 to 200ppm hydrogen sulphide
(2).
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Effects from Chronic Exposure
No data available for the product.
Acute toxicity/Chronic toxicity
No LD50 data available for the product.
FIRST AID
Ingestion: Immediately rinse mouth with water. DO NOT
induce vomiting. Seek immediate medical
attention. Poison Information Centre phone 13 11
26 Australia wide.
Eyes: If in eyes, hold eyes open, flood with water for at
least 15 minutes. Urgently seek medical assistance.
Transport to hospital or medical centre.
Skin: If skin contact occurs, remove contaminated
clothing immediately and wash skin with plenty of
cold water. See a Doctor immediately.
Inhalation: Remove victim from exposure 鈥? avoid becoming a
casualty. If breathing laboured and patient cyanotic
(blue), ensure airways are clear and have a qualified
person give oxygen through a face mask. If
breathing has stopped apply artificial respiration at
once. In the event of cardiac arrest, apply external
cardiac massage. Seek urgent medical attention.
Notes to physician: Treat symptomatically. Can cause corneal burns.
FIRST AID FACILITIES
Eye wash and safety shower in area of use
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PRECAUTIONS FOR USE
ENGINEERING CONTROLS
Use adequate ventilation to maintain atmospheric dust and vapour concentration at
lowest practicable level. Avoid generating and inhaling dusts. If inhalation risk exists,
use with local exhaust ventilation or while wearing dust mask. Keep containers closed
when not in use.
PERSONAL PROTECTION
Avoid skin and eye contact. Wear overalls, chemical goggles, dust mask, impervious
gloves, rubber boots and rubber apron when working with large volumes. Use with
adequate ventilation. If inhalation risk exists, wear respirator, ensure that the cartridges
are correct for the potential air contamination and are in good working order. Always
wash hands before smoking, eating, drinking or using the toilet. Wash contaminated
clothing and protective equipment before re-using.
FLAMMABILITY
Not combustible under normal circumstances. Dust explosion severity tests undertaken
by the US Bureau of Mines determined that BCDMH is not ignitable.
STORAGE AND HANDLING
PACKING AND LABELLING
Spills and Disposal
Avoid inhalation dust. Work upwind or increase ventilation. Clear area of all
unprotected personnel. Wear protective equipment to prevent skin and eye
contamination and inhalation of dust. Cover with damp absorbent (inert material, sand or
soil).
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FIRE AND/OR EXPLOSION HAZARD
Specific hazards: Non combustible material.
Fire fighting further advice: Non combustible. Contact with acids and moisture
will produce highly toxic and flammable hydrogen
sulphide gas. Hydrogen sulphide has a flammable
range in air of 4.0% to 4.4%. Decomposes on
heating emitting toxic fumes including those of
sulphur oxides (SOx). Fire fighters to wear self-
contained breathing apparatus if risk of exposure to
products of decomposition.
Suitable extinguishing media: Not combustible, however if material is involved in
a fire use water fog (or if unavailable fine water
spray), foam, dry agent (carbon dioxide, dry
chemical powder).
CONTACT INFORMATION
CONTACT: CHIEF EXECUTIVE OFFICER: (02) 9790 8777
DISCLAIMER
All information given in this data sheet and by the company鈥檚 technical staff
is compiled from the information currently available to the company. The
company accepts no responsibility whatsoever for its accuracy, or for any
results which may be obtained by customers. Any customer who relies upon
any advice or information given in this data sheet by the company or by its
technical staff does so entirely at its own risk, and the company will not be
liable for any loss or damage thereby suffered notwithstanding any want of
care on the part of the company or its staff in compiling or giving the advice
or information.
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