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 1.1  Product Name  Phosphine produced from hydrolysis of Aluminium Phosphide & Zinc Phosphide.
 1.2  Trade Name
 Aluminium Phosphide - Synfume
 Zinc Phosphide - Synfume
 1.3  Chemical Designation  Fumigant
 1.4  Synonyms  Hydrogen phosphide, phosphoretted hydrogen, phosphorus trihydride, phosphorus hydride.
 1.5  Formula  PH3
 1.6  Label Class  Toxic gas, flammable gas
 1.7  Category  Fumigant
 1.8  CAS Number  7803-51-2
 1.9  UN Number   2199
 1.10  Regulated Identification  Aluminium phosphide / Zinc phosphide
 1.11  Shipping Name  Aluminium phosphide / Zinc phosphide
 1.12  Codes/Label
 4.3 Packing Group-I
 Aluminium Phosphide/Zinc Phosphide - Dangerous when wet & Toxic
 1.13  HAZCHEM Code  None
 1.14  Hazardous Waste Identification No.  None
 1.15  Hazardous Ingredients with CAS No.  Phosphine - 7803-51-2
 2.1  Physical State (Gas/liquid/solid)
 Aluminium Phosphide - Solid
 Phosphine - Gas
 2.2  Appearance  ----
 2.3  Odour  Pure Phosphine is odourless, however due to impurities it has Garlic-like, decomposing fish, stale  urine odour.
 2.4  Others (Corrosivity, etc..)  Phosphine gas released on hydrolysis is highly corrosive especially to noble metals.
 2.5  Boiling Point  -87.4 deg C
 2.6  Melting Point  -133.5 deg C
 2.7  Vapour Density (air=1)  1.53 g/L
 2.8  Specific Gravity (water=1)  1.17 (air=1)
 2.9  Vapour Pressure  40 mm Hg @ - 129.4 degC 1 mm Hg @ 20 degC
 2.10  Evaporation rate  N/A
 2.11  Solubility in water  26 cc/100ml at 17 degC
 2.12  pH  N/A
 3.1  Explosion/Flammability  Auto-ignites at 38 degC.
 3.2  Flash Point LEL % UEL %  Phosphine - 1.8%, Unknown
 3.3  Auto ignition  Auto-ignites at 38 degC.
 3.4  TDG Flammability (Classification)  N/A
 4.1  Stability  Phosphine is stable at room temperature. At elevated temperature (above 150 deg. C), phosphine  decomposes to phosphorus and hydrogen. Diphosphine may also result from thermal  decomposition.
 4.2  Impact (Haz. Combustion products)  Phosphine decomposes to phosphorus and hydrogen. Diphosphine may also result from thermal  decomposition.
 4.3  Static Discharge (Haz. Combustion products)  N/A
 4.4  Reactivity (Conditions to avoid)  None
 4.5  Hazardous Polymerization  Not reported
 4.6  Incompatibility  Oxidizers, halogens, nitric acid
 5.1  Routes of entry  Inhalation
 5.2  Effects of exposure/symptoms
 Inhalation: Sore throat, cough, shortness of breath, headache, dizziness, nausea & vomiting.
 Skin: Redness with burning sensation.
 Eye: Redness
 5.3  LD50 (in rat) oral  N/A
   LD50 (in rat) dermal  Phosphine - 220 mg.h/m3
 5.4  Humans: TCLO > 850 mg/m3/hr  Phosphine - 220 mg.h/m3
 5.5  Permissible exposure Limit (PEL)  0.3 ppm (0.4 mg/m3)
 5.6  Threshold limit value (TLV or ACGIH)  0.3 ppm/8 hours/5 days a week
 5.7  Emergency treatment
 (i) Remove patient from exposure, keep at rest. Rescuers should follow full safety  procedures.
 (ii) If the patient is unconscious, place in semi-prone recovery position or otherwise maintain  the airway.
 (iii) If patient is conscious but has difficulty in breathing, treat in a seated position and give  oxygen if available.
 (iv) Allow patient to recline with the legs slightly elevated.
 (v) If breathing stops, immediately ventilate the patient artificially (mouth to mouth/nose or  mechanically with oxygen available).
 (vi) If the heart stops, begin cardiopulmonary resuscitation-CPR.
 (i) Remove contaminated clothing. Wash contaminated skin with soap & water.
 C. EYE:
 (i) Immediately flush with large amounts of water for at least 15 mins., occasionally lifting  upper and lower lids.
 6.1  NEPA Hazard Signal  Toxic, flammable gas
 6.2  Health  4
 6.3  Flammability  4
 6.4  Reactivity  1
 6.5  Special  ----
   Combustible liquid:  No
   Flammable material:  Yes
   Pyrophonic Material:  Yes
   Unstable Material:  No
   Explosive Material:  Yes
   Water reactivity:  Yes
   Oxidizer:  Yes
   Organic Peroxide:  No
   Corrosive Material:  Yes
   Compressed Gas:  No
   Irritant:  Yes
   Sensitizer:  Yes
   Carcinogen:  No
   Mutagen:  No
   Others (Specify):  ----
 7.1  Ventilation: General/Mechanical Local Exhaust  Give adequate ventilation during storage. Maintain airflow with exhaust if required.
 7.2  Protective Equipment  
 7.2.1  Eyes  As found suitable like goggles, masks.
 7.2.2  Respiratory  Supply of fresh air through tube masks.
 7.2.3  Gloves  Synthetic rubber gloves.
 7.2.4  Clothing  Lightweight impervious overalls like cotton apron.
 7.2.5  Others  Use adequate headgear.
 7.3  Precautions  
 7.3.1  Handling & Storage
 Storage to be done in a cool, dry and well-ventilated place. Keep under lock & key, away from  children and pets.
 Do not allow contact with water, acids, other oxidizing agents or any other liquids.
 Keep away from heat, flame & other flammable chemicals.
 Wash hands thoroughly with soap after handling.
 7.3.2  Others
 Product to be used by Certified Applicators only, with trained assistants.
 Open containers in open air do not use sharp tools.
 Do not fumigate alone.
 Use adequate protective equipment and gas detecting equipments.
 The area to be fumigated should be airtight, do not use in vacuum fumigation.
 Techniques of aeration and exposure to be adequately adhered.
 Do not allow piling of tablets; do not allow the gas concentration to exceed lower flammability  level.
 Proper deactivation process to be followed.
 Warning placards to be displayed.
 Entry to the fumigated area to be allowed only after checking gas concentration.
 8.1  Fire extinguishing media
 In case of fire, suffocate flames with sand, use CO2 extinguishers or use dry chemical  extinguishers.
 8.2  Special Procedures  Engulf fire with sand or dry powder extinguisher.
 8.3  Unusual Hazards  Auto ignites at 38 degC
 8.4  Exposure (Inhalation, skin, eye contact,  ingestion)
 Inhalation: Remove from contaminated area into fresh air. Give oxygen if conscious, CPR if  patient has suffered cardiac arrest.
 Skin: Remove contamination clothing and wash affected area thoroughly with water.
 Eye: Wash eyes thoroughly in eye wash fountain.
 Ingestion: Not applicable
 8.5  Spills
 Do not wash the material in sewer. Use adequate masks & gloves.
 The material can be collected and left in open air, (far from inhabitation) keeping it moist until it  has hydrolysed fully - this process is called `Dry Deactivation'.
 `Wet Deactivation': Deactivating solution is prepared in a drum or a suitable container and the  material collected is added slowly. The deactivation solution can be 2 % or 4 cups of low  sudsing detergent in 30 gallons of water.
 Partly spent material can also be deactivated in this process. Utmost care to be taken while  adding the material. This process should be undertaken in open air, adhering to all the  precautionary measures.
 The deactivated material, dust-water can be disposed off at an approved site.
 The area of spillage should be thoroughly washed with huge quantity of water and should be  aerated. Entry into the area should be allowed only after checking the gas concentration.
 Phosphine gas, if liberated can be slowly let off in the open air. If huge quantities are let off, then  it should be ignited by a suitable burner.
 8.5.1 Steps to be taken  Refer 8.5 given above
 8.5.2  Waste disposal method  Refer 8.5 given above.The used containers should not be kept for re-use. Packaging material  should be destroyed by burying underground or incinerated, at approved sites.
 9.0  ADDITIONAL INFORMATION  Evaluation by WHO - Phosphine & Metal Phosphides are toxic. They have a very limited  distribution in the environment. Proper standards and procedures in their use prevent harmful  effects. No significant global effects on the environment have resulted from the use of  phosphine or phosphides.
 1) International Chemical Safety Cards (WHO/IPCS/ILO) (ICSC:0472).
 2) Phosphine & Metal Phosphides - WHO Environmental Criteria 73.
 3) Sax's Dangerous Properties of Industrial Materials
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