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Date of peer-review: October 1995
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TYPES OF HAZARD / EXPOSURE | ACUTE HAZARDS / SYMPTOMS | PREVENTION | FIRST AID / FIRE FIGHTING |
FIRE | Not
combustible but forms flammable gas on contact with water or damp air.
Many reactions may cause fire or explosion. |
NO contact
with water. |
Special
powder, dry sand, NO other agents. |
EXPLOSION | Risk of fire
and explosion on contact with water. |
Use
non-sparking handtools. Prevent deposition of dust; closed system, dust
explosion-proof electrical equipment and lighting. |
In case of
fire: cool drums, etc., by spraying with water but avoid contact of the
substance with water. |
EXPOSURE | PREVENT
DISPERSION OF DUST! STRICT HYGIENE! |
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Inhalation | Cough.
Laboured breathing. Shortness of breath. Sore throat. |
Local
exhaust or breathing protection. |
Fresh air,
rest. Half-upright position. Refer for medical attention.
|
Skin | Redness.
Skin burns. Pain. |
Protective
gloves. Protective clothing. |
Remove
contaminated clothes. Rinse skin with plenty of water or shower.
|
Eyes | Redness.
Pain. Blurred vision. Severe deep burns. |
Safety
goggles, or eye protection in combination with breathing protection if
powder. |
First rinse
with plenty of water for several minutes (remove contact lenses if easily
possible), then take to a doctor. |
Ingestion | Laboured
breathing. Shock or collapse (further see Inhalation). |
Do not eat,
drink, or smoke during work. Wash hands before eating. |
Rinse mouth.
Do NOT induce vomiting. Refer for medical attention. See Notes.
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SPILLAGE DISPOSAL | PACKAGING & LABELLING | |||||||
Eliminate
all ignition sources. Sweep spilled substance into clean dry containers.
Carefully collect remainder, then remove to safe place. Do not use water.
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Airtight. EU Classification Symbol: F R: 15 S: (2-)8-43 UN Classification UN Hazard Class: 4.3 UN Pack Group: II | |||||||
EMERGENCY RESPONSE | STORAGE | |||||||
Transport
Emergency Card: TEC (R)-192 NFPA Code: H1; F3; R2; W |
Separated
from incompatible materials (see Chemical Dangers). Dry. Well closed.
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IMPORTANT DATA | |||
PHYSICAL
STATE; APPEARANCE: GRAY CRYSTALS OR BLACK LUMPS , WITH CHARACTERISTIC ODOUR. CHEMICAL DANGERS: Shock-sensitive compounds are formed with silver nitrate and copper salts. The substance decomposes violently on contact with moisture and water producing highly flammable and explosive acetylene gas (ICSC # 0089) , causing fire and explosion hazard. Reacts with chlorine, bromine, iodine, hydrogen chloride, lead, fluoride magnesium, sodium peroxide and sulphur, causing fire and explosion hazard. Mixtures with iron (III) chloride, iron (III) oxide and tin (II) chloride ignite easily and burn fiercely. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. |
ROUTES OF
EXPOSURE: The substance can be absorbed into the body by inhalation. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly especially if powdered. EFFECTS OF SHORT-TERM EXPOSURE: Corrosive. The substance is corrosive to the eyes, the skin and the respiratory tract. Inhalation of the substance may cause lung oedema (see Notes). | ||
PHYSICAL PROPERTIES | |||
Melting
point: about 2300°C Relative density (water = 1): 2.22 Solubility in water: reaction |
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ENVIRONMENTAL DATA | |||
NOTES | |||
Reacts violently with fire extinguishing agents such as water,
producing explosive gas. The substance may contain contaminant resulting
in the release of the toxic gas phosphine on contact with water. The
symptoms of lung oedema often do not become manifest until a few hours
have passed and they are aggravated by physical effort. Rest and medical
observation are therefore essential. Immediate administration of an
appropriate spray, by a doctor or a person authorized by him/her, should
be considered. Specific treatment is necessary in case of poisoning with
this substance; the appropriate means with instructions must be available.
Also consult ICSC # 0089 (acetylene). | |||
ADDITIONAL INFORMATION | |||
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© IPCS, CEC 2001 |
See Also: Toxicological Abbreviations