Name:
Nitric acid red fuming
Synonym:
RFNA; Red fuming nitric acid. (Fuming nitric acid is defined as concentrated nitric acid containing dissolved nitrogen dioxide.
CAS:
7697-37-2
Section 1 - Chemical Product
MSDS Name:Nitric acid red fuming
Synonym:RFNA; Red fuming nitric acid. (Fuming nitric acid is defined as concentrated nitric acid containing dissolved nitrogen dioxide.
Synonym:RFNA; Red fuming nitric acid. (Fuming nitric acid is defined as concentrated nitric acid containing dissolved nitrogen dioxide.
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 7697-37-2 | Nitric acid | >90 | 231-714-2 |
| Hazard Symbols: O C Risk Phrases: 35 8 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Causes severe burns. Contact with combustible material may cause fire.
Potential Health Effects
Eye:
Causes severe eye burns. May cause irreversible eye injury.
Skin:
Exposure of the skin to the liquid or concentrated vapor produces severe and penetrating burns. Concentrated nitric acid dyes human skin yellow on contact.
Ingestion:
Causes gastrointestinal tract burns. May cause perforation of the digestive tract.
Inhalation:
Effects may be delayed. Causes chemical burns to the respiratory tract. Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema. May cause acute pulmonary edema, asphyxia, chemical pneumonitis, and upper airway obstruction caused by edema.
Chronic:
Exposure to high concentrations of nitric acid vapor may cause pneuomonitis and pulmonary edema which may be fatal. Symptoms may or may not be delayed. Continued exposure to the vapor & mist of nitric acid may result in a chronic bronchitis, & more severe exposure results in a chemical pneumonitis. The vapor & mists of nitric acid may erode the teeth, particularly affecting the canines & incisors.
Causes severe burns. Contact with combustible material may cause fire.
Potential Health Effects
Eye:
Causes severe eye burns. May cause irreversible eye injury.
Skin:
Exposure of the skin to the liquid or concentrated vapor produces severe and penetrating burns. Concentrated nitric acid dyes human skin yellow on contact.
Ingestion:
Causes gastrointestinal tract burns. May cause perforation of the digestive tract.
Inhalation:
Effects may be delayed. Causes chemical burns to the respiratory tract. Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema. May cause acute pulmonary edema, asphyxia, chemical pneumonitis, and upper airway obstruction caused by edema.
Chronic:
Exposure to high concentrations of nitric acid vapor may cause pneuomonitis and pulmonary edema which may be fatal. Symptoms may or may not be delayed. Continued exposure to the vapor & mist of nitric acid may result in a chronic bronchitis, & more severe exposure results in a chemical pneumonitis. The vapor & mists of nitric acid may erode the teeth, particularly affecting the canines & incisors.
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:
In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. Wash clothing before reuse.
Ingestion:
If swallowed, do NOT induce vomiting. Get medical aid immediately.
If victim is fully conscious, give a cupful of water. Never give anything by mouth to an unconscious person.
Inhalation:
POISON material. If inhaled, get medical aid immediately. Remove victim to fresh air. If not breathing, give artificial respiration.
If breathing is difficult, give oxygen.
Notes to Physician:
Skin:
In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. Wash clothing before reuse.
Ingestion:
If swallowed, do NOT induce vomiting. Get medical aid immediately.
If victim is fully conscious, give a cupful of water. Never give anything by mouth to an unconscious person.
Inhalation:
POISON material. If inhaled, get medical aid immediately. Remove victim to fresh air. If not breathing, give artificial respiration.
If breathing is difficult, give oxygen.
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. Use water spray to keep fire-exposed containers cool.
Vapors may accumulate in confined spaces Contact with metals may evolve flammable hydrogen gas. Approach fire from upwind to avoid hazardous vapors and toxic decomposition products.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire. Do NOT use straight streams of water.
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. Use water spray to keep fire-exposed containers cool.
Vapors may accumulate in confined spaces Contact with metals may evolve flammable hydrogen gas. Approach fire from upwind to avoid hazardous vapors and toxic decomposition products.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire. Do NOT use straight streams of water.
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 using an absorbent, non-combustible material such as earth, sand, or vermiculite. Do not use combustible materials such as sawdust. Provide ventilation. Evacuate unnecessary personnel.
Approach spill from upwind. Use water spray to cool and disperse vapors and protect personnel.
Spills/Leaks:
Absorb spill using an absorbent, non-combustible material such as earth, sand, or vermiculite. Do not use combustible materials such as sawdust. Provide ventilation. Evacuate unnecessary personnel.
Approach spill from upwind. Use water spray to cool and disperse vapors and protect personnel.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Do not get in eyes, on skin, or on clothing. Keep from contact with clothing and other combustible materials. Discard contaminated shoes. Do not use with metal spatula or other metal items. Do not breathe vapor or mist. Use only with adequate ventilation or respiratory protection. Always add the acid to water, never the reverse.
Storage:
Do not store near combustible materials. Do not store in direct sunlight. Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from metals. Store away from alkalies. Bottles should be vented periodically in order to overcome pressure buildup. Separate from organic materials. Avoid storage on wood floors. Shelves and floor material should be non-combustible and acid-resistant. Inspect periodically for damage or evidence of leaks or corrosion. This material may darken during storage due to photochemical reactions.
Keep this bottle in a cool place and remove cap carefully to avoid spurting.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Do not get in eyes, on skin, or on clothing. Keep from contact with clothing and other combustible materials. Discard contaminated shoes. Do not use with metal spatula or other metal items. Do not breathe vapor or mist. Use only with adequate ventilation or respiratory protection. Always add the acid to water, never the reverse.
Storage:
Do not store near combustible materials. Do not store in direct sunlight. Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from metals. Store away from alkalies. Bottles should be vented periodically in order to overcome pressure buildup. Separate from organic materials. Avoid storage on wood floors. Shelves and floor material should be non-combustible and acid-resistant. Inspect periodically for damage or evidence of leaks or corrosion. This material may darken during storage due to photochemical reactions.
Keep this bottle in a cool place and remove cap carefully to avoid spurting.
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 general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits. Use a corrosion-resistant ventilation system.
Exposure Limits CAS# 7697-37-2: United Kingdom, WEL - TWA: 2 ppm TWA; 5.2 mg/m3 TWA United Kingdom, WEL - STEL: 4 ppm STEL; 10 mg/m3 STEL United States OSHA: 2 ppm TWA; 5 mg/m3 TWA Belgium - TWA: 2 ppm VLE; 5.3 mg/m3 VLE Belgium - STEL: 4 ppm VLE; 10 mg/m3 VLE France - VME: 2 ppm VME; 5 mg/m3 VME France - VLE: 4 ppm VLE; 10 mg/m3 VLE Germany: 2 ppm TWA; 5.2 mg/m3 TWA Japan: 2 ppm OEL; 5.2 mg/m3 OEL Malaysia: 2 ppm TWA; 5.2 mg/m3 TWA Netherlands: 0.5 ppm STEL; 1.3 mg/m3 STEL Russia: 2 mg/m3 TWA Spain: 2 ppm VLA-ED; 5.2 mg/m3 VLA-ED Spain: 4 ppm VLA-EC; 10 mg/m3 VLA-EC CAS# 7732-18-5: CAS# 10102-44-0: United States OSHA: ; 5 ppm Ceiling; 9 mg/m3 Ceiling Belgium - TWA: 3 ppm VLE; 5.7 mg/m3 VLE Belgium - STEL: 5 ppm VLE; 9.5 mg/m3 VLE France - VLE: 3 ppm VLE; 6 mg/m3 VLE Germany: 5 ppm TWA; 9.5 mg/m3 TWA Malaysia: 3 ppm TWA; 5.6 mg/m3 TWA Netherlands: 2 ppm MAC; 4 mg/m3 MAC Russia: 2 mg/m3 TWA Spain: 3 ppm VLA-ED; 5.7 mg/m3 VLA-ED Spain: 5 ppm VLA-EC; 9.6 mg/m3 VLA-EC Personal Protective Equipment Eyes: Wear chemical splash goggles and face shield.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective 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 general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits. Use a corrosion-resistant ventilation system.
Exposure Limits CAS# 7697-37-2: United Kingdom, WEL - TWA: 2 ppm TWA; 5.2 mg/m3 TWA United Kingdom, WEL - STEL: 4 ppm STEL; 10 mg/m3 STEL United States OSHA: 2 ppm TWA; 5 mg/m3 TWA Belgium - TWA: 2 ppm VLE; 5.3 mg/m3 VLE Belgium - STEL: 4 ppm VLE; 10 mg/m3 VLE France - VME: 2 ppm VME; 5 mg/m3 VME France - VLE: 4 ppm VLE; 10 mg/m3 VLE Germany: 2 ppm TWA; 5.2 mg/m3 TWA Japan: 2 ppm OEL; 5.2 mg/m3 OEL Malaysia: 2 ppm TWA; 5.2 mg/m3 TWA Netherlands: 0.5 ppm STEL; 1.3 mg/m3 STEL Russia: 2 mg/m3 TWA Spain: 2 ppm VLA-ED; 5.2 mg/m3 VLA-ED Spain: 4 ppm VLA-EC; 10 mg/m3 VLA-EC CAS# 7732-18-5: CAS# 10102-44-0: United States OSHA: ; 5 ppm Ceiling; 9 mg/m3 Ceiling Belgium - TWA: 3 ppm VLE; 5.7 mg/m3 VLE Belgium - STEL: 5 ppm VLE; 9.5 mg/m3 VLE France - VLE: 3 ppm VLE; 6 mg/m3 VLE Germany: 5 ppm TWA; 9.5 mg/m3 TWA Malaysia: 3 ppm TWA; 5.6 mg/m3 TWA Netherlands: 2 ppm MAC; 4 mg/m3 MAC Russia: 2 mg/m3 TWA Spain: 3 ppm VLA-ED; 5.7 mg/m3 VLA-ED Spain: 5 ppm VLA-EC; 9.6 mg/m3 VLA-EC Personal Protective Equipment Eyes: Wear chemical splash goggles and face shield.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective 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: yellow to brown-red
Odor: suffocating odor - strong odor - acrid odor
pH: Not available.
Vapor Pressure: 62 mm Hg @ 25 deg C
Viscosity: 0.761 cP 25 deg C
Boiling Point: 122 deg C
Freezing/Melting Point: -42 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Freely Soluble.
Specific Gravity/Density: 1.5
Molecular Formula: HNO3 and NO2
Molecular Weight: 63.02
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures. May decompose when exposed to light. Turns reddish-brown on exposure to light. Darkens on exposure to light.
Conditions to Avoid:
Light, excess heat, confined spaces.
Incompatibilities with Other Materials:
Incompatible with many substances, alcohols, aldehydes, combustible materials, cyanides, metal powders, reducing agents, strong bases, organic solvents, turpentine, charcoal, Nitric acid reacts with over 150 chemicals. Reacts explosively with organic materials and combustible materials..
Hazardous Decomposition Products:
Nitrogen oxides.
Hazardous Polymerization: Has not been reported.
Stable under normal temperatures and pressures. May decompose when exposed to light. Turns reddish-brown on exposure to light. Darkens on exposure to light.
Conditions to Avoid:
Light, excess heat, confined spaces.
Incompatibilities with Other Materials:
Incompatible with many substances, alcohols, aldehydes, combustible materials, cyanides, metal powders, reducing agents, strong bases, organic solvents, turpentine, charcoal, Nitric acid reacts with over 150 chemicals. Reacts explosively with organic materials and combustible materials..
Hazardous Decomposition Products:
Nitrogen oxides.
Hazardous Polymerization: Has not been reported.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 7697-37-2: QU5775000 QU5900000 CAS# 7732-18-5: ZC0110000 CAS# 10102-44-0: QW9800000 LD50/LC50:
CAS# 7697-37-2: Inhalation, rat: LC50 = 260 mg/m3/30M; Inhalation, rat: LC50 = 130 mg/m3/4H; Inhalation, rat: LC50 = 67 ppm(NO2)/4H.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 10102-44-0: Inhalation, mouse: LC50 = 1000 ppm/10M; Inhalation, mouse: LC50 = 800 mg/m3/25M; Inhalation, mouse: LC50 = 900 mg/m3/2H; Inhalation, rabbit: LC50 = 315 ppm/15M; Inhalation, rabbit: LC50 = 60 mg/m3/15M; Inhalation, rabbit: LC50 = 12 mg/m3/15M; Inhalation, rat: LC50 = 88 ppm/4H; Inhalation, rat: LC50 = 220 mg/m3/1H; Inhalation, rat: LC50 = 310 mg/m3/30M; Inhalation, rat: LC50 = 790 mg/m3/5M.
Carcinogenicity:
Nitric acid - Not listed by ACGIH, IARC, or NTP.
Water - Not listed by ACGIH, IARC, or NTP.
Nitrogen dioxide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 7697-37-2: QU5775000 QU5900000 CAS# 7732-18-5: ZC0110000 CAS# 10102-44-0: QW9800000 LD50/LC50:
CAS# 7697-37-2: Inhalation, rat: LC50 = 260 mg/m3/30M; Inhalation, rat: LC50 = 130 mg/m3/4H; Inhalation, rat: LC50 = 67 ppm(NO2)/4H.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 10102-44-0: Inhalation, mouse: LC50 = 1000 ppm/10M; Inhalation, mouse: LC50 = 800 mg/m3/25M; Inhalation, mouse: LC50 = 900 mg/m3/2H; Inhalation, rabbit: LC50 = 315 ppm/15M; Inhalation, rabbit: LC50 = 60 mg/m3/15M; Inhalation, rabbit: LC50 = 12 mg/m3/15M; Inhalation, rat: LC50 = 88 ppm/4H; Inhalation, rat: LC50 = 220 mg/m3/1H; Inhalation, rat: LC50 = 310 mg/m3/30M; Inhalation, rat: LC50 = 790 mg/m3/5M.
Carcinogenicity:
Nitric acid - Not listed by ACGIH, IARC, or NTP.
Water - Not listed by ACGIH, IARC, or NTP.
Nitrogen dioxide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Section 13 - DISPOSAL CONSIDERATIONS
Products which are considered hazardous for supply are classified as Special Waste and the disposal of such chemicals is covered by regulations which may vary according to location. Contact a specialist disposal company or the local waste regulator for advice. Empty containers must be decontaminated before returning for recycling.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: Nitric Acid, Red Fuming
Hazard Class: 8
UN Number: 2032
Packing Group: I
IMO
Shipping Name: Nitric Acid, Red Fuming
Hazard Class: 8
UN Number: 2032
Packing Group: I
RID/ADR
Shipping Name: Nitric Acid, Red Fuming
Hazard Class: 8
UN Number: 2032
Packing group: I
USA RQ: CAS# 7697-37-2: 1000 lb final RQ; 454 kg final RQ
USA RQ: CAS# 10102-44-0: 10 lb final RQ; 4.54 kg final RQ
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: O C
Risk Phrases:
R 35 Causes severe burns.
R 8 Contact with combustible material may cause
fire.
Safety Phrases:
S 23 Do not inhale gas/fumes/vapour/spray.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 36 Wear suitable protective clothing.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 7697-37-2: 1
CAS# 7732-18-5: No information available.
CAS# 10102-44-0: 1
Canada
CAS# 7697-37-2 is listed on Canadas DSL List.
CAS# 7732-18-5 is listed on Canadas DSL List.
CAS# 10102-44-0 is listed on Canadas DSL List.
CAS# 7697-37-2 is listed on Canadas Ingredient Disclosure List.
CAS# 7732-18-5 is not listed on Canadas Ingredient Disclosure List.
CAS# 10102-44-0 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7697-37-2 is listed on the TSCA inventory.
CAS# 7732-18-5 is listed on the TSCA inventory.
CAS# 10102-44-0 is listed on the TSCA inventory.
