Name:
Nitrosylsulfuric acid (40% in 87% sulfuric acid) 40%
Synonym:
Nitrosyl sulfate; Nitrosulfuric acid; Nitrosyl hydrogen sulfate; Nitrosulfonic acid; Nitroacid sulfate; NSA
CAS:
7664-93-9
Section 1 - Chemical Product
MSDS Name:Nitrosylsulfuric acid (40% in 87% sulfuric acid) 40%
Synonym:Nitrosyl sulfate; Nitrosulfuric acid; Nitrosyl hydrogen sulfate; Nitrosulfonic acid; Nitroacid sulfate; NSA
Synonym:Nitrosyl sulfate; Nitrosulfuric acid; Nitrosyl hydrogen sulfate; Nitrosulfonic acid; Nitroacid sulfate; NSA
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 7664-93-9 | Sulfuric acid | 52.2 | 231-639-5 |
| Hazard Symbols: O C Risk Phrases: 14 35 8 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Reacts violently with water. Causes severe burns. Contact with combustible material may cause fire.Corrosive.Water-reactive.
Potential Health Effects
Eye:
Causes eye burns. When substance becomes wet or comes in contact with moisture of the mucous membranes, it will cause irritation. May cause permanent corneal opacification. May cause chemical conjunctivitis and corneal damage.
Skin:
Causes skin burns. Contact with skin causes irritation and possible burns, especially if the skin is wet or moist. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract. May cause burns to the gastrointestinal tract. May cause systemic effects. May cause nausea, vomiting, and diarrhea, possibly with blood.
Inhalation:
Causes chemical burns to the respiratory tract. Aspiration may lead to pulmonary edema. May cause systemic effects. May cause acute pulmonary edema, asphyxia, chemical pneumonitis, and upper airway obstruction caused by edema.
Chronic:
Effects may be delayed.
Reacts violently with water. Causes severe burns. Contact with combustible material may cause fire.Corrosive.Water-reactive.
Potential Health Effects
Eye:
Causes eye burns. When substance becomes wet or comes in contact with moisture of the mucous membranes, it will cause irritation. May cause permanent corneal opacification. May cause chemical conjunctivitis and corneal damage.
Skin:
Causes skin burns. Contact with skin causes irritation and possible burns, especially if the skin is wet or moist. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract. May cause burns to the gastrointestinal tract. May cause systemic effects. May cause nausea, vomiting, and diarrhea, possibly with blood.
Inhalation:
Causes chemical burns to the respiratory tract. Aspiration may lead to pulmonary edema. May cause systemic effects. May cause acute pulmonary edema, asphyxia, chemical pneumonitis, and upper airway obstruction caused by edema.
Chronic:
Effects may be delayed.
Section 4 - FIRST AID MEASURES
Eyes: Get medical aid immediately. Do NOT allow victim to rub eyes or keep eyes closed. Extensive irrigation with water is required (at least 30 minutes).
Skin:
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
If water-reactive products are embedded in the skin, no water should be applied. The embedded products should be covered with a light oil.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:
Skin:
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
If water-reactive products are embedded in the skin, no water should be applied. The embedded products should be covered with a light oil.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:
Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Strong oxidizer. Contact with other material may cause fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Water Reactive.
Material will react with water and may release a flammable and/or toxic gas. Use water spray to keep fire-exposed containers cool. Use water with caution and in flooding amounts. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. May ignite or explode on contact with steam or moist air. Containers may explode when heated.
Extinguishing Media:
Use dry sand or earth to smother fire. Use agent most appropriate to extinguish fire. DO NOT USE WATER! Contact professional fire-fighters immediately. Cool containers with flooding quantities of water until well after fire is out.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Strong oxidizer. Contact with other material may cause fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Water Reactive.
Material will react with water and may release a flammable and/or toxic gas. Use water spray to keep fire-exposed containers cool. Use water with caution and in flooding amounts. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. May ignite or explode on contact with steam or moist air. Containers may explode when heated.
Extinguishing Media:
Use dry sand or earth to smother fire. Use agent most appropriate to extinguish fire. DO NOT USE WATER! Contact professional fire-fighters immediately. Cool containers with flooding quantities of water until well after fire is out.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Remove all sources of ignition. Provide ventilation. Do not expose spill to water. Do not use combustible materials such as paper towels to clean up spill.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Remove all sources of ignition. Provide ventilation. Do not expose spill to water. Do not use combustible materials such as paper towels to clean up spill.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Do not allow water to get into the container because of violent reaction. Keep container tightly closed. Avoid contact with clothing and other combustible materials. Do not get on skin or in eyes. Do not ingest or inhale. Use with adequate ventilation. Do not allow contact with water. Discard contaminated shoes. Keep from contact with moist air and steam.
Storage:
Keep away from heat, sparks, and flame. Do not store near combustible materials. Keep away from water. Corrosives area.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Do not allow water to get into the container because of violent reaction. Keep container tightly closed. Avoid contact with clothing and other combustible materials. Do not get on skin or in eyes. Do not ingest or inhale. Use with adequate ventilation. Do not allow contact with water. Discard contaminated shoes. Keep from contact with moist air and steam.
Storage:
Keep away from heat, sparks, and flame. Do not store near combustible materials. Keep away from water. Corrosives area.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 7664-93-9: United States OSHA: 1 mg/m3 TWA Belgium - TWA: 1 mg/m3 VLE Belgium - STEL: 3 mg/m3 VLE France - VME: 1 mg/m3 VME France - VLE: 3 mg/m3 VLE Germany: 0.5 mg/m3 TWA (inhalable fraction, battery manufacture, metal working in a close Japan: 1 mg/m3 Ceiling Malaysia: 1 mg/m3 TWA Netherlands: 1 mg/m3 MAC Russia: 1 mg/m3 TWA Spain: 1 mg/m3 VLA-ED Spain: 3 mg/m3 VLA-EC CAS# 7732-18-5: CAS# 7782-78-7: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear a chemical apron. Wear appropriate clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 7664-93-9: United States OSHA: 1 mg/m3 TWA Belgium - TWA: 1 mg/m3 VLE Belgium - STEL: 3 mg/m3 VLE France - VME: 1 mg/m3 VME France - VLE: 3 mg/m3 VLE Germany: 0.5 mg/m3 TWA (inhalable fraction, battery manufacture, metal working in a close Japan: 1 mg/m3 Ceiling Malaysia: 1 mg/m3 TWA Netherlands: 1 mg/m3 MAC Russia: 1 mg/m3 TWA Spain: 1 mg/m3 VLA-ED Spain: 3 mg/m3 VLA-EC CAS# 7732-18-5: CAS# 7782-78-7: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear a chemical apron. Wear appropriate clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Liquid
Color: almost colorless
Odor: sulfurous odor
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: > 100 deg C
Freezing/Melting Point: > 0 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Reacts.
Specific Gravity/Density: 1.9000g/cm3
Molecular Formula: HNO5S
Molecular Weight: 127.08
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable. Combines vigorously or explosively with water.
Conditions to Avoid:
Incompatible materials, ignition sources, dust generation, combustible materials, reducing agents, strong oxidants, exposure to moist air or water.
Incompatibilities with Other Materials:
Reducing agents.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, sulfur oxides (SOx), including sulfur oxide and sulfur dioxide.
Hazardous Polymerization: Has not been reported
Stable. Combines vigorously or explosively with water.
Conditions to Avoid:
Incompatible materials, ignition sources, dust generation, combustible materials, reducing agents, strong oxidants, exposure to moist air or water.
Incompatibilities with Other Materials:
Reducing agents.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, sulfur oxides (SOx), including sulfur oxide and sulfur dioxide.
Hazardous Polymerization: Has not been reported
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 7664-93-9: WS5600000 CAS# 7732-18-5: ZC0110000 CAS# 7782-78-7 unlisted.
LD50/LC50:
CAS# 7664-93-9: Draize test, rabbit, eye: 250 ug Severe; Inhalation, mouse: LC50 = 320 mg/m3/2H; Inhalation, mouse: LC50 = 320 mg/m3; Inhalation, rat: LC50 = 510 mg/m3/2H; Inhalation, rat: LC50 = 510 mg/m3; Oral, rat: LD50 = 2140 mg/kg.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 7782-78-7.
Carcinogenicity:
Sulfuric acid - ACGIH: A2 - Suspected Human Carcinogen (contained in strong inorg California: carcinogen, initial date 3/14/03 (listed as Strong inorgan NTP: Known carcinogen (listed as Strong inorganic acid mists co IARC: Group 1 carcinogen Water - Not listed by ACGIH, IARC, or NTP.
Nitrosylsulphuric Acid - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 7664-93-9: WS5600000 CAS# 7732-18-5: ZC0110000 CAS# 7782-78-7 unlisted.
LD50/LC50:
CAS# 7664-93-9: Draize test, rabbit, eye: 250 ug Severe; Inhalation, mouse: LC50 = 320 mg/m3/2H; Inhalation, mouse: LC50 = 320 mg/m3; Inhalation, rat: LC50 = 510 mg/m3/2H; Inhalation, rat: LC50 = 510 mg/m3; Oral, rat: LD50 = 2140 mg/kg.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 7782-78-7.
Carcinogenicity:
Sulfuric acid - ACGIH: A2 - Suspected Human Carcinogen (contained in strong inorg California: carcinogen, initial date 3/14/03 (listed as Strong inorgan NTP: Known carcinogen (listed as Strong inorganic acid mists co IARC: Group 1 carcinogen Water - Not listed by ACGIH, IARC, or NTP.
Nitrosylsulphuric Acid - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S.*
Hazard Class: 8
UN Number: 3265
Packing Group: II
IMO
Shipping Name: CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S.
Hazard Class: 8
UN Number: 3265
Packing Group: II
RID/ADR
Shipping Name: CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S.
Hazard Class: 8
UN Number: 3265
Packing group: II
USA RQ: CAS# 7664-93-9: 1000 lb final RQ; 454 kg final RQ
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: O C
Risk Phrases:
R 14 Reacts violently with water.
R 35 Causes severe burns.
R 8 Contact with combustible material may cause
fire.
Safety Phrases:
S 2 Keep out of reach of children.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 30 Never add water to this product.
WGK (Water Danger/Protection)
CAS# 7664-93-9: 2
CAS# 7732-18-5: No information available.
CAS# 7782-78-7: 2
Canada
CAS# 7664-93-9 is listed on Canadas DSL List.
CAS# 7732-18-5 is listed on Canadas DSL List.
CAS# 7782-78-7 is listed on Canadas DSL List.
CAS# 7664-93-9 is listed on Canadas Ingredient Disclosure List.
CAS# 7732-18-5 is not listed on Canadas Ingredient Disclosure List.
CAS# 7782-78-7 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7664-93-9 is listed on the TSCA inventory.
CAS# 7732-18-5 is listed on the TSCA inventory.
CAS# 7782-78-7 is listed on the TSCA inventory.
