Improving Member States preparedness to face an HNS pollution of the Marine System (HNS-MS)
Ammonia Anhydrous
Description Top
| CAS number | 7664-41-7 |
| UN number | 1005 |
| Chemical formula | NH3 |
| Standard European Behaviour Classification (SEBC) | Dissolver that evaporates (DE) |
GESAMP Hazard profile
| A1 | A2 | B1 | B2 | C1 | C2 | C3 | D1 | D2 | D3 | E1 | E2 | E3 |
| 0 | R | 3 | 2 | 1 | 2 | 3 | 3 | 3 | NI | DE | 3 |
Marine pollution Classification (MARPOL Annex II)
| Category | Description |
| Other Substances | Substances which have been evaluated and found to fall outside Category X, Y or Z because they are considered to present no harm to marine resources, human health, amenities or other legitimate uses of the sea when discharged into the sea from tank cleaning of deballasting operations. The discharge of bilge or ballast water or other residues or mixtures containing these substances are not subject to any requirements of MARPOL Annex II. |
Alternate names for this chemical
Ammonia Gas
Ammonia Anhydrous
Ammoniac
Ammonia Anhydrous
Ammoniac
Physico-chemical properties Top
| Chemical formula | NH3 | ||
| Molar mass | 17.031 [g/mol] | ||
| Critical molar volume | 6.98E-5 [m³/mol] | ||
| State | Gas at 25°C and 1 atm | ||
| Fusion temperature | -77.73 [°C] | ||
| Boiling temperature | -33.33 [°C] | ||
| Critical temperature | 405.56 [°C] | ||
| Density |
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| Kinematic viscosity |
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| Hydrosolubility |
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| Vapour pressure |
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| Critical pressure | 1135700 [Pa] | ||
| Vapour density | 0.6 | ||
| Flash point (Pensky-Martens closed cup) | 132 [°C] | ||
| Lower explosivity limit (LEL) | 16 [%] | ||
| Upper explosivity limit (UEL) | 25 [%] | ||
| Vaporization enthalpy |
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| Combustion enthalpy | 22476660 [J/Kg] | ||
| Henry's constant | 1.63 [mol/(m³·Pa)] |
Behaviour Top
| Log Kow | 0.23 |
| Log Koc | 1.155 |
| Hydrolysis (Half-life) | Not hydrolysable |
| Standard European Behaviour Classification (SEBC) | Dissolver that evaporates (DE) |
Ecotoxicity Top
| Lowest median lethal concentration (LC50) on algae | 17 [mg/l] | |
| Lowest median lethal concentration (LC50) on crustacean | 0.13 [mg/l] | |
| Lowest median lethal concentration (LC50) on fishes | 0.5 [mg/l] | |
| Highest no observed effect concentration (NOEC) on crustacean | 0.79 [mg/l] | |
| Assessment factor (AF) |
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| Predicted No Effect Concentration (PNEC) |
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Hazards Top
Danger
Hazards statements
Physical
H221
Flammable gas.
H280
Contains gas under pressure, may explode if heated.
Health
H314
Causes severe skin burns and eye damage.
H331
Toxic if inhaled.
Environmental
H410
Very toxic to aquatic life with long lasting effects.
Precautionary statements
Prevention
P210
Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P260
Do not breathe dust/fume/gas/mist/vapours/spray.
P273
Avoid release to the environment.
P280
Wear protective gloves/protective clothing/eye protection/face protection.
Response
P377
Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P303 + P361 + P353
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P304 + P340
IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Storage
P403 + P233
Store in a well-ventilated place. Keep container tightly closed.
GESAMP Top
GESAMP Hazard profile
| A1 | A2 | B1 | B2 | C1 | C2 | C3 | D1 | D2 | D3 | E1 | E2 | E3 |
| 0 | R | 3 | 2 | 1 | 2 | 3 | 3 | 3 | NI | DE | 3 |
A1: Bioaccumulation
| Rating | Description |
| 0 | No potential to bioaccumulate |
A1a:
| Rating | Description | Criteria [mg/l] |
| 0 | No potential to bioaccumulate | Log Kow < 1 |
A1b:
| Rating | Description | Criteria |
| 0 | No potential to bioaccumulate | No measurable bioconcentration factor (BCF) |
A2: Biodegradation
| Rating | Description |
| R | Readily biodegradable |
B1: Acute aquatic toxicity
| Rating | Description | Criteria [mg/l] |
| 3 | Moderately toxic | 1 < LC/EC/IC50 ≤ 10 |
B2: Chronic aquatic toxicity
| Rating | Description | Criteria [mg/l] |
| 2 | Moderate | 0.01 < NOEC ≤ 0.1 |
C1: Acute oral toxicity
| Rating | Description | Criteria [mg/Kg] |
| 1 | Slight | 300 < AOTE ≤ 2000 |
C2: Acute dermal toxicity (skin contact)
| Rating | Description | Criteria [mg/Kg] |
| 2 | Moderate | 200 < ADTE ≤ 1000 |
C3: Acute inhalation toxicity
| Rating | Description | Criteria [mg/l] (4 hours exposure) |
| 3 | Moderately high | 0.5 < AITE ≤ 2 |
D1: Skin irritation or corrosion
| Rating | Description | Sign | GHS category |
| 3 | Severely irritating or corrosive | Severe irritation indi | Corrosive Category 1 |
D2: Eye irritation
| Rating | Description | Sign | GHS category |
| 3 | Severely irritating or corrosive | Severe conjunctoblepha | Irritant Category 1 |
D3: Long-term health effects
| Notation | Hazard endpoint | Description | GHS category |
| No Information |
E1: Tainting of seafood
| Rating | Description |
| NI | No Information |
E2: Behaviour of chemicals in the marine environment
| Rating | Description |
| DE | Dissolver that evaporates |
E3: Interference with the use of coastal amenities
| Rating | Interference | Description | Interpretation | Warning |
| 3 | Highly objectionable | 1 is highly acutely toxic; and/or 2 is severely irritant or corrosive to skin or eyes; and/or 3 is carcinogenic, mutagenic or reprotoxic; and/or 4 is a floater or persistent floater with associated health effects | 1 C1 and/or C2 and/or C3 = 4; and/or 2 D1 or D2 = 3, 3A, 3B, or 3C; and/or 3 D3 contains C, M or R; and/or 4 E2 = F or Fp and D3 contains Ss, Sr, T, A, N, or I | Warning issued leading to the closure of amenities |
GHS Security Information
Danger
About the project
HNS-MS is a decision-support tool that Belgian and French maritime authorities as well as coastguard stations can activate in order to forecast the drift, fate and behavior of acute marine pollution by Harmful Noxious Substances (HNS) accidentally released in the marine system.
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Copyright © 2015–2024 HNS-MS Consortium
HNS-MS has been funded by DG-ECHO under agreement ECHO/SUB/2014/693705 and runs from 1 January 2015 to 31 March 2017.