Description Top
CAS number | 7704-34-9 |
UN number | 1350 |
Chemical formula | S |
Standard European Behaviour Classification (SEBC) | Sinker (S) |
A1 | A2 | B1 | B2 | C1 | C2 | C3 | D1 | D2 | D3 | E1 | E2 | E3 |
0 | NI | 0 | NI | 0 | 0 | 1 | 1 | 1 | NI | S | 1 |
Category | Description |
Z | Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, are deemed to present a minor hazard to either marine resources or human health and therefore justify less stringent restrictions on the quality and quantity of the discharge into the marine environment. |
Physico-chemical properties Top
Chemical formula | S | ||
Molar mass | 32.065 [g/mol] | ||
Critical molar volume | 0.000116 [m³/mol] | ||
State | Solid at 25°C and 1 atm | ||
Fusion temperature | 115.21 [°C] | ||
Boiling temperature | 444.61 [°C] | ||
Critical temperature | 2573 [°C] | ||
Density |
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Hydrosolubility |
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Vapour pressure |
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Critical pressure | 35000000 [Pa] | ||
Flash point (Cleveland open cup) | 207 [°C] | ||
Vaporization enthalpy |
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Henry's constant | 880.5 [mol/(m³·Pa)] |
Behaviour Top
Log Kow | 0.23 |
Log Koc | 1.12 |
Standard European Behaviour Classification (SEBC) | Sinker (S) |
Ecotoxicity Top
Lowest median lethal concentration (LC50) on crustacean | 736 [mg/l] |
Hazards Top
Warning
GESAMP Top
A1 | A2 | B1 | B2 | C1 | C2 | C3 | D1 | D2 | D3 | E1 | E2 | E3 |
0 | NI | 0 | NI | 0 | 0 | 1 | 1 | 1 | NI | S | 1 |
Rating | Description |
0 | No potential to bioaccumulate |
Rating | Description |
Inorg |
Rating | Description | Criteria |
0 | No potential to bioaccumulate | No measurable bioconcentration factor (BCF) |
Rating | Description |
NI | No Information |
Rating | Description | Criteria [mg/l] |
0 | Non-toxic | LC/EC/IC50 > 1000 |
Rating | Description |
NI | No Information |
Rating | Description | Criteria [mg/Kg] |
0 | Negligible | AOTE > 2000 |
Rating | Description | Criteria [mg/Kg] |
0 | Negligible | ADTE > 2000 |
Rating | Description | Criteria [mg/l] (4 hours exposure) |
1 | Slight | 10 < AITE ≤ 20 |
Rating | Description | Sign | GHS category |
1 | Mildly irritating | Mild erythema with or | Mild Irritant Category 3 |
Rating | Description | Sign | GHS category |
1 | Mildly irritating | Mild conjunctival hype | Irritant Category 2B |
Notation | Hazard endpoint | Description | GHS category |
No Information |
Rating | Description |
NI | No Information |
Rating | Description |
S | Sinker |
Rating | Interference | Description | Interpretation | Warning |
1 | Slightly objectionable | 1 is a floater; and/or 2 is slightly acutely toxic; and/or 3 is mildly irritant to skin and/or eyes | 1 E2 = F; and/or 2 C1 and/or C2 and/or C3 = 1; and/or 3 D1 and/or D2 = 1 | Warning issued but no closure of amenities |
Warning
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.
HNS-MS has been funded by DG-ECHO under agreement ECHO/SUB/2014/693705 and runs from 1 January 2015 to 31 March 2017.