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CAS Number: 13779-41-4
Product Catalog

93-1571
Fluorine Difluorophosphoric acid hemihydrate, tech. gr.
CAS Number: 13779-41-4
MDL Number: MFCD09842893
Molecular Formula: F2HO2P
Molecular Weight: 101.98 (110.99)
Chemical Formula: HPO2F2·0.5H2O
Color and Form: yellow fuming liq.
Note:  

Safety: Hazardous

Physical Characteristics: melting point -96.5°C, boiling point 115.9°C, density 1.583 (25°C)

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SECTION 1: Product Identification
Chemical Name: Difluorophosphoric acid hemihydrate, tech. gr.
Product Number: 93-1571
CAS Registry Number: 13779-41-4
Formula: HPO2F2.0.5H2O
EINECS Number: none
Chemical Family: inorganic acid
Synonym: Fluophosphoric acid, Phosphorodifluoridic acid
SECTION 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title compound 13779-41-4 100 2.5mg/m3 (as F) 2.5mg/m3 (as F)
SECTION 3: Hazards Identification
Emergency Overview: This material is a strong, corrosive fuming acid. The material is extremely corrosive to skin, eyes, mucous membranes and respiratory tract. Can release toxic fumes of hydrogen fluoride.
Primary Routes of Exposure: Ingestion, inhalation, eyes and skin
Eye Contact: Severe corrosive to the eyes. Exposure can lead to permanent eye damage.
Skin Contact: Severe corrosive to skin. Material can be absorbed through the skin. Unless treated, contact can lead to deep and painful chemical burns.
Inhalation: Material is a fuming liquid releasing toxic and corrosive fumes. Inhalation can lead to severe irritation of the mucous membranes and lungs.
Ingestion: Material is highly toxic and corrosive. Ingestion may be fatal unless immediate treatment is available.
Acute Health Effects: Severe corrosive to eyes, skin, mucous membranes and respiratory tract. Ingestion may be fatal.
Chronic Health Effects: No information available on long-term chronic effects.
NTP: No
IARC: No
OSHA: No
SECTION 4: First Aid Measures
Eye Exposure: Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention.
Skin Exposure: Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists.
Inhalation: Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Ingestion: Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel.
SECTION 5: Fire Fighting Measures
Flash Point: none
Autoignition Temperature: none
Explosion Limits: none
Extinguishing Medium: none
Special Fire Fighting Procedures: If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus and full protective clothing.
Hazardous Combustion and Decomposion Products: If involved in a fire this material may emit irritating fumes.
Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.
SECTION 6: Accidental Release Measures
Spill and Leak Procedures: Small spills can be neutralized with sodium carbonate, sodium bicarbonate or lime. The solids can then be swept up and properly disposed of. In the case of a large spill, the area should be evacuated. Personnel should only enter the area fitted with a self-contained breathing apparatus. The acid should be neutralized with lime.
SECTION 7: Handling and Storage
Handling and Storage: Store in a tightly sealed container. Keep away from heat and direct sunlight. Material can fume strongly on exposure to air. Handle the material only in an efficient fume hood.
SECTION 8: Exposure Controls and Personal Protection
Eye Protection: In addition to approved safety glasses, a face shield should be worn when working with this material.
Skin Protection: When handling this material rubber gloves and an apron should be worn.
Ventilation: This product should only be handled in an efficient fume hood.
Respirator: In the absence of adequate ventilation a respirator should be worn. The use of a respiratory requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134.
Additional Protection: No additional protection required.
SECTION 9: Physical and Chemical Properties
Color and Form: yellow fuming liq.
Molecular Weight: 110.99
Melting Point: -96.5°C
Boiling Point: 115.9°C
Vapor Pressure: no data
Specific Gravity: 1.583
Odor: strong acidic odor
Solubility in Water: very soluble
SECTION 10: Stability and Reactivity
Stability: air and moisture stable liquid
Hazardous Polymerization: none
Conditions to Avoid: none
Incompatibility: strong bases, active metals, any acid incompatible material.
Decomposition Products: hydrogen fluoride
SECTION 11: Toxicological Information
RTECS Data: No information available from the RTECS files.
Carcinogenic Effects: No data available
Mutagenic Effects: No data available
Tetratogenic Effects: No data available
SECTION 12: Ecological Information
Ecological Information: No information available
SECTION 13: Disposal Considerations
Disposal: Material can be neutralized with a suitable base rendering it non-acidic. Dispose of according to local, state and federal regulations.
SECTION 14: Transportation
Shipping Name (CFR): Corrosive Liquid, acidic, inorganic, N.O.S.
Hazard Class (CFR): 8
Additional Hazard Class (CFR): NA
Packaging Group (CFR): II
UN ID Number (CFR): UN# 3264
Shipping Name (IATA): Corrosive Liquid, acidic, inorganic, N.O.S.
Hazard Class (IATA): 8
Additional Hazard Class (IATA): NA
Packaging Group (IATA): II
UN ID Number (IATA): UN# 3264
SECTION 15: Regulatory Information
TSCA: listed on the TSCA inventory
SARA (Title 313): Not reportable under SARA Title (313)
Second Ingredient: none
Third Ingredient: none
SECTION 16: Other Information
Disclaimer: The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information.
Preparation Date: 2/23/2000
Revision Date: 7/28/2011

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