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| AMMONIA SOLUTIONS (CONTAINING MORE THAN 35% BUT NOT MORE THAN 50% AMMONIA) |  |
Chemical Identifiers | Hazards | Response Recommendations | Physical Properties | Regulatory Information | Alternate Chemical Names
Chemical Identifiers
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The Chemical Identifier fields include common identification numbers, the NFPA diamond U.S. Department of Transportation hazard labels, and a general description of the chemical. The information in CAMEO Chemicals comes from a variety of data sources.
| CAS Number | UN/NA Number | DOT Hazard Label | USCG CHRIS Code |
- 7664-41-7
 | | | none |
| NIOSH Pocket Guide | International Chem Safety Card |
Ammonia | - AMMONIA (ANHYDROUS)
|
NFPA 704
| Diamond | Hazard | Value | Description |
| |  Health | 3 | Can cause serious or permanent injury. |
 Flammability | 1 | Must be preheated before ignition can occur. |
 Instability | 0 | Normally stable, even under fire conditions. |
 Special |
(NFPA, 2010) General Description A clear colorless liquid consisting of ammonia dissolved in water. Corrosive to tissue and metals. Although ammonia is lighter than air, the vapors from a leak will initially hug the ground. Long term exposure to low concentrations or short term exposure to high concentrations may result in adverse health conditions from inhalation. Prolonged exposure of containers to fire or heat may result in their violent rupturing and rocketing.
Hazards
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The Hazard fields include special hazard alerts air and water reactions, fire hazards, health hazards, a reactivity profile, and details about reactive groups assignments and potentially incompatible absorbents. The information in CAMEO Chemicals comes from a variety of data sources. Reactivity Alerts
none Air & Water Reactions Soluble in water with evolution of heat. The amount of heat generated may be large. Fire Hazard Excerpt from ERG Guide 125 [Gases - Toxic and/or Corrosive]: Some may burn but none ignite readily. Vapors from liquefied gas are initially heavier than air and spread along ground. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release toxic and/or corrosive gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket. For UN1005: Anhydrous ammonia, at high concentrations in confined spaces, presents a flammability risk if a source of ignition is introduced. (ERG, 2024) Health Hazard Excerpt from ERG Guide 125 [Gases - Toxic and/or Corrosive]: TOXIC and/or CORROSIVE; may be fatal if inhaled, ingested or absorbed through skin. Vapors are extremely irritating and corrosive. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause environmental contamination. (ERG, 2024) Reactivity Profile Ammonia solutions react exothermically with acids to produce water and ammonium salts, Heating or treating with strong bases also causes evolution of gaseous ammonia. Ammonia can burn or explode if exposed to an intense source of ignition but can generally be treated as nonflammable. Readily combines with silver oxide, silver chloride, silver nitrate, silver azide or mercury to form explosive compounds. Forms explosive ammonium chlorate on contact with chlorates [Kirk-Othmer, 3rd ed., Vol. 2, 1978, p. 470]. Reacts violently or produces explosive products with fluorine, chlorine, bromine and iodine and bromine pentafluoride and chlorine trifluoride. Mixing of bleaching powder (hypochlorite solution) with ammonia solutions produces toxic/explosive ammonia trichloride vapors. May react violently with boron halides, ethylene oxide (polymerization), perchlorates and strong oxidizing agents (chromyl chloride, chromium trioxide, chromic acid, nitric acid, hydrogen peroxide, chlorates, fluorine, nitrogen oxide, liquid oxygen). Belongs to the Following Reactive Group(s)
- Bases, Weak
- Water and Aqueous Solutions
Potentially Incompatible Absorbents
No information available.
Response Recommendations
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The Response Recommendation fields include isolation and evacuation distances, as well as recommendations for firefighting, non-fire response, protective clothing, and first aid. The information in CAMEO Chemicals comes from a variety of data sources. Isolation and Evacuation Excerpt from ERG Guide 125 [Gases - Toxic and/or Corrosive]: IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 100 meters (330 feet) in all directions. SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary. FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions. (ERG, 2024) Firefighting Excerpt from ERG Guide 125 [Gases - Toxic and/or Corrosive]: SMALL FIRE: Dry chemical or CO2. LARGE FIRE: Water spray, fog or regular foam. If it can be done safely, move undamaged containers away from the area around the fire. Do not get water inside containers. Damaged cylinders should be handled only by specialists. FIRE INVOLVING TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Do not direct water at source of leak or safety devices; icing may occur. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. (ERG, 2024) Non-Fire Response Excerpt from ERG Guide 125 [Gases - Toxic and/or Corrosive]: Do not touch or walk through spilled material. Stop leak if you can do it without risk. If possible, turn leaking containers so that gas escapes rather than liquid. Prevent entry into waterways, sewers, basements or confined areas. Do not direct water at spill or source of leak. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Isolate area until gas has dispersed. (ERG, 2024) Protective Clothing Excerpt from ERG Guide 125 [Gases - Toxic and/or Corrosive]: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE. Structural firefighters' protective clothing provides thermal protection but only limited chemical protection. (ERG, 2024) DuPont Tychem® Suit Fabrics Fabric legend, testing details, and a caution from DuPont
Tychem® Fabric Legend
| QS = Tychem 2000 SFR |
| QC = Tychem 2000 |
| SL = Tychem 4000 |
| C3 = Tychem 5000 |
| TF = Tychem 6000 |
| TP = Tychem 6000 FR |
| RC = Tychem RESPONDER® CSM |
| TK = Tychem 10000 |
| RF = Tychem 10000 FR |
Testing Details The fabric permeation data was generated for DuPont by a third party laboratory. Permeation data for industrial chemicals is obtained per ASTM F739. Normalized breakthrough times (the time at which the permeation rate exceeds 0.1 μg/cm2/min) are reported in minutes. All chemicals have been tested between approximately 20°C and 27°C unless otherwise stated. All chemicals have been tested at a concentration of greater than 95% unless otherwise stated. Chemical warfare agents (Lewisite, Sarin, Soman, Sulfur Mustard, Tabun and VX Nerve Agent) have been tested at 22°C and 50% relative humidity per military standard MIL-STD-282. "Breakthrough time" for chemical warfare agents is defined as the time when the cumulative mass which permeated through the fabric exceeds the limit in MIL-STD-282 [either 1.25 or 4.0 μg/cm2]. A Caution from DuPont This information is based upon technical data that DuPont believes to be reliable on the date issued. It is subject to revision as additional knowledge and experience are gained. The information reflects laboratory performance of fabrics, not complete garments, under controlled conditions. It is intended for informational use by persons having technical skill for evaluation under their specific end-use conditions, at their own discretion and risk. It is the user's responsibility to determine the level of toxicity and the proper personal protective equipment needed. Anyone intending to use this information should first verify that the garment selected is suitable for the intended use. In many cases, seams and closures have shorter breakthrough times and higher permeation rates than the fabric. If fabric becomes torn,abraded or punctured, or if seams or closures fail, or if attached gloves, visors, etc. are damaged, end user should discontinue use of garment to avoid potential exposure to chemical. Since conditions of use are outside our control, DuPont makes no warranties, express or implied, including, without limitation, no warranties of merchantability or fitness for a particular use and assume no liability in connection with any use of this information. This information is not intended as a license to operate under or a recommendation to infringe any patent, trademark or technical information of DuPont or others covering any material or its use.
Normalized Breakthrough Times (in Minutes) | Chemical | CAS Number | State | QS | QC | SL | C3 | TF | TP | RC | TK | RF |
| Ammonia (-33°C, liquid) | 7664-41-7 | Liquid | 35 | 20 | 30 | >480 |
| Ammonia (-70°C, liquid) | 7664-41-7 | Liquid | >480 | >480 | >480 |
| Ammonia (gaseous) | 7664-41-7 | Vapor | imm | imm | 26 | imm | 20 | 90 | 105*/133 | >480 | >480 |
> indicates greater than. "imm" indicates immediate; having a normalized breakthrough time of 10 minutes or less. * indicates based on lowest single value.
Special Warning from DuPont: Tychem® and Tyvek® fabrics should not be used around heat, flames, sparks or in potentially flammable or explosive environments. Only...
More Info...
...Tychem® ThermoPro, Tychem® Reflector® and Tychem® TK styles 600T/601T (with aluminized outer suit) garments are designed and tested to help reduce burn injury during escape from a flash fire. Users of Tychem® ThermoPro, Tychem® Reflector® and Tychem® TK styles 600T/601T (with aluminized outer suit) garments should not knowingly enter an explosive environment. Tychem® garments with attached socks must be worn inside protective outer footwear and are not suitable as outer footwear. These attached socks do not have adequate durability or slip resistance to be worn as the outer foot covering.
(DuPont, 2024)
First Aid Excerpt from ERG Guide 125 [Gases - Toxic and/or Corrosive]: Refer to the "General First Aid" section. Specific First Aid: In case of contact with liquefied gas, only medical personnel should attempt thawing frosted parts. In case of skin contact with hydrogen fluoride, anhydrous (UN1052), if calcium gluconate gel is available, rinse 5 minutes, then apply gel. Otherwise, continue rinsing until medical treatment is available. (ERG, 2024)
Physical Properties
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The Physical Property fields include properties such as vapor pressure and boiling point, as well as explosive limits and toxic exposure thresholds The information in CAMEO Chemicals comes from a variety of data sources.
Note: For Vapor Density and Specific Gravity, comparing the value to 1.0 can tell you if the chemical will likely sink/rise in air or sink/float in fresh water (respectively). Short phrases have been added to those values below as an aid. However, make sure to also consider the circumstances of a release. The Vapor Density comparisons are only valid when the gas escaping is at the same temperature as the surrounding air itself. If the chemical is escaping from a container where it was pressurized or refrigerated, it may first escape and behave as a heavy gas and sink in the air (even if it has a Vapor Density value less than 1). Also, the Specific Gravity comparisons are for fresh water (density 1.0 g/mL). If your spill is in salt water (density about 1.027 g/mL), you need to adjust the point of comparison. There are some chemicals that will sink in fresh water and float in salt water.
Flash Point: data unavailable Lower Explosive Limit (LEL): data unavailable Upper Explosive Limit (UEL): data unavailable Autoignition Temperature: data unavailable Melting Point: data unavailable Vapor Pressure: data unavailable Vapor Density (Relative to Air): data unavailable Specific Gravity: data unavailable Boiling Point: data unavailable Molecular Weight: data unavailable Water Solubility: data unavailable Ionization Energy/Potential: 10.18 eV [From NPG: Ammonia] (NIOSH, 2024)
IDLH: 300 ppm [From NPG: Ammonia] (NIOSH, 2024)
AEGLs (Acute Exposure Guideline Levels)
Final AEGLs for Ammonia (7664-41-7) | Exposure Period | AEGL-1 | AEGL-2 | AEGL-3 |
| 10 minutes | 30 ppm | 220 ppm | 2700 ppm |
| 30 minutes | 30 ppm | 220 ppm | 1600 ppm |
| 60 minutes | 30 ppm | 160 ppm | 1100 ppm |
| 4 hours | 30 ppm | 110 ppm | 550 ppm |
| 8 hours | 30 ppm | 110 ppm | 390 ppm |
(NAC/NRC, 2024)
ERPGs (Emergency Response Planning Guidelines)
| Chemical | ERPG-1 | ERPG-2 | ERPG-3 | | Ammonia (7664-41-7) | 25 ppm  | 150 ppm | 1500 ppm |
indicates that odor should be detectable near ERPG-1. (AIHA, 2022)
PACs (Protective Action Criteria)
| Chemical | PAC-1 | PAC-2 | PAC-3 |
| Ammonia (7664-41-7) | 30 ppm | 160 ppm | 1100 ppm | LEL = 150000 ppm |
(DOE, 2024)
Regulatory Information
What is this information?
The Regulatory Information fields include information from the U.S. Environmental Protection Agency's Title III Consolidated List of Lists, the U.S. Cybersecurity and Infrastructure Security Agency's Chemical Facility Anti-Terrorism Standards, and the U.S. Occupational Safety and Health Administration's Process Safety Management of Highly Hazardous Chemicals Standard List (see more about these data sources).
EPA Consolidated List of Lists
| Regulatory Name | CAS Number/313 Category Code | EPCRA 302EHS TPQ | EPCRA 304EHS RQ | CERCLA RQ | EPCRA 313TRI | RCRACode | CAA 112(r)RMP TQ |
| Ammonia | 7664-41-7 | 500 pounds | 100 pounds | 100 pounds |
| Ammonia (anhydrous) | 7664-41-7 | 500 pounds | 100 pounds | 100 pounds | X | 10000 pounds |
| Ammonia (conc 20% or greater) | 7664-41-7 | See ammonium hydroxide | X | 20000 pounds |
| Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 7664-41-7 | 313 |
- "X" indicates that this is a second name for an EPCRA section 313 chemical already included on this consolidated list. May also indicate that the same chemical with the same CAS number appears on another list with a different chemical name.
(EPA List of Lists, 2024)
CISA Chemical Facility Anti-Terrorism Standards (CFATS)
| RELEASE | THEFT | SABOTAGE |
| Chemical of Interest | CAS Number | Min Conc | STQ | SecurityIssue | Min Conc | STQ | SecurityIssue | Min Conc | STQ | SecurityIssue |
| Ammonia (anhydrous) | 7664-41-7 | 1.00 % | 10000 pounds | toxic |
| Ammonia (conc. 20% or greater) | 7664-41-7 | 20.00 % | 20000 pounds | toxic |
(CISA, 2007)
OSHA Process Safety Management (PSM) Standard List
| Chemical Name | CAS Number | Threshold Quantity (TQ) |
| Ammonia solutions (>44% ammonia by weight) | 7664-41-7 | 15000 pounds |
| Ammonia, Anhydrous | 7664-41-7 | 10000 pounds |
(OSHA, 2019)
Alternate Chemical Names
What is this information?
This section provides a listing of alternate names for this chemical, including trade names and synonyms.
- AMMONIA SOLUTIONS (CONTAINING MORE THAN 35% BUT NOT MORE THAN 50% AMMONIA)
- AMMONIA, SOLUTION, WITH MORE THAN 35% BUT NOT MORE THAN 50% AMMONIA
- R 717
- R717
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CAMEO Chemicals version 3.1.0 rev 2.