INTERNATIONAL MARITIME ORGANIZATION
E
IMO
BLG WORKING GROUP ON THE
EVALUATION OF SAFETY AND
POLLUTION HAZARDS OF CHEMICALS
14th session
Agenda item 2
ESPH 14/2/3
9 September 2008
ENGLISH ONLY
EVALUATION OF NEW PRODUCTS
Sodium bromide solution (less than 50%) drilling brines
Submitted by the United Kingdom
SUMMARY
Executive summary:
Sodium bromide solution (less than 50%) drilling brines is proposed
for inclusion in Chapter 17 of the IBC Code
Strategic direction:
5.2
High-level action:
5.2.3
Planned output:
5.2.3.1
Action to be taken:
Paragraph 3
Related documents:
MEPC.1/Circ.512; BLG.1/Circ.26 and BLG.2/Circ.13
1
Background
1.1
During its forty-fifth session, the GESAMP/EHS Working Group on the Evaluation of
the Hazards of Harmful Substances carried by Ships considered data provided by industry on
Sodium bromide solution (less than 50%) drilling brines. The resultant hazard profile is set out
in annex 6 of document EHS 45/9, as attached to BLG.1/Circ.26.
1.2
The GESAMP Hazard Profile developed under the revised hazard evaluation procedure is
found hereunder:
A1
0
A2
Inorg
B1
0
B2
0
C1
0
C2
0
C3
(1)
D1
0
D2
1
D3
R
For reasons of economy, this document is printed in a limited number. Delegates are
kindly asked to bring their copies to meetings and not to request additional copies.
I:\BLG\ESPH\14\2-3.doc
E1
E2
D
E3
3
Remarks
ESPH 14/2/3
-2-
1.3
In reviewing the data provided by industry the Group noted that the main chemical name
given was “Sodium bromide solution” and that in the information provided in the data form, a
concentration of 48% was specified. In the latest list of Tripartite Agreements (MEPC.2/Circ.13,
List 1), there is a similar entry but this is described as “Sodium bromide solution (less than 50%)
drilling brines”. It was accepted that the data supplied would support the latter product and that
the higher percentage level limit should therefore be adopted for the EHS name.
2
Details of the proposal
2.1
Based on data provided by the industry, and the resulting hazard profile, it is proposed
that Sodium bromide solution (less than 50%) drilling brines be included in Chapter 17 of
the IBC Code with the following carriage requirements:
Column
Entry
a. Product Name:
Sodium bromide solution (less than 50%)
drilling brines
c. Pollution Category:
Y
d. Hazards:
S/P
e. Ship type:
3
f. Tank type:
2G
g. Tank vents:
Open
h. Tank environmental control:
No.
i. Electrical equipment
i′ Class:
i′’ Group:
i′” Flash point greater than 60oC:
yes (NF)
j. Gauging:
Open
k. Vapour detection:
No
l. Fire protection:
AC
n. Emergency equipment:
No
o. Special requirements:
15.19.6.
2.2
The data related to this product are attached to this document for information.
3
Action requested of the Working Group
The Working Group is invited to consider the data associated with this product in the
annex and assign carriage requirements as shown in 2.1 above.
***
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ESPH 14/2/3
ANNEX
BLG Product Data Reporting Form
(Characteristics of Products proposed for Bulk Marine Transport)
1
Product Identity
Product Name: SODIUM BROMIDE BRINE
The product name shall be used in the shipping document for any cargo offered for bulk shipments.
Any additional name may be included in brackets after the product name.
1.1
Other Names and Identification Numbers
Main Trade Name: SODIUM BROMIDE BRINE
Main Chemical Name: SODIUM BROMIDE SOLUTION
Chemical Formula: NaBr
C.A.S. Number: 7647-15-6
EHS Number:
BMR Number:
Structure
Na – Br
In H2O
RTECS Number: VZ3150000
1.2
Associated Synonyms
Synonym Name
Type
Composition
Component Name
%
Sodium Bromide
48
Water
52
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Type
ESPH 14/2/3
ANNEX
Page 2
2
Physical Properties
Property
Units
Qual.
(Daltons)
102.89
Density @ 20ºC
(kg/m3)
3.203
Flashpoint (cc)
(ºC)
Boiling Point
(ºC)
1390
Melting Point/Pour Point
(ºC)
755
Water solubility @ 20ºC
(mg/I)
Molecular weight
Viscosity @ 20ºC
(Pa)
Autoignition Temp.
(ºC)
(% v/v)
(ºC)
AMBIENT
Unloading Temperature
(ºC)
AMBIENT
3
References/
Comments
0.000018
Carriage Temperature
MESG
Upper Value
(mPa.s)
Vap. Press. @ 20ºC
Explosion Limits
Lower
Value
(mm)
Relevant Chemical Properties
Water Reactivity Index
(0-2)….....0.
0 = No Reactivity
Details Product is an aqueous solution ................................................
1 = Reactive
.....................................................................................................
2 = Highly Reactive
.....................................................................................................
Does the product react with air to cause a potentially hazardous situation? (Y/N)
N
If so, provide details .....................................................................................................................................
Reference......................................................................................................................................................
Is an Inhibitor or Stabilizer needed to prevent a hazardous reaction? (Y/N)
N
If so, provide details .....................................................................................................................................
Reference .....................................................................................................................................................
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ESPH 14/2/3
ANNEX
Page 3
N
Is refrigeration needed to prevent a hazardous reaction? (Y/N)
If so, provide details .....................................................................................................................................
Reference .....................................................................................................................................................
4
Mammalian Toxicity
4.1
Acute Toxicity
Qual.
Lower
Value
Upper
Value
4200
Oral LD50
Species
Rat
Reference/
Comments
IUCLID
Based on solid NaBr
(mg/kg)
>2000
Dermal LD50
Rabbit
IUCLID
Based on solid NaBr
(mg/kg)
N/A
Inhalation LD50
Product is a liquid.
(mg/I/4 h)
Vapours from this aqueous solution will not be formed unless the material is subjected to temperatures
above its boiling point, i.e. in excess of 1390oC; this situation is not anticipated as the material will be
transported at ambient temperature.
4.2 Corrosivity and Irritation
Skin Corrosion time
(hours)
Qual.
N/A
Lower Value
Resultant
Observation
Upper Value
Species
Reference/Comments
Skin Irritation (4 h exposure)
Not irritating
Rabbit
IUCLID – This is based on 100%
NaBr but this product only
contains 48%.
This is not
classified as an skin irritant under
EU Directives.
Eye Irritation
Slightly irritating
Rabbit
IUCLID – This is based on 100%
NaBr but this product only
contains 48%. This is classified
as an eye irritant under EU
Directives.
Not irritating, Slightly irritating, Mildly irritating, Moderately irritating, Severely irritating or Corrosive
4.3
Sensitization
Respiratory Sensitizer
(in humans)
(Y/N)
Skin Sensitization
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(Y/N)
N.......................................................................................................
N - IUCLIDS – based on guinea pig.
ESPH 14/2/3
ANNEX
Page 4
4.4
Other Specific Long-Term Effects
Carcinogen
(Y/N)
N - IUCLIDS .....................................................................................
Mutagen
(Y/N)
N - IUCLIDS .....................................................................................
Toxic to Reproduction (Y/N)
N - IUCLIDS .....................................................................................
Other Long-term
N - IUCLIDS .....................................................................................
4.5
(Y/N)
Other Relevant Mammalian Toxicity
......................................................................................................................................................................
None available ..............................................................................................................................................
5
GESAMP Hazard Profile and Carriage Requirements
5.1
GESAMP Hazard Profile
Column
Property
Value
A1
Bioaccumulation
A2
Biodegradation
B1
Acute Aquatic Toxicity
0
B2
Chronic Aquatic Toxicity
0
C1
Acute Oral Toxicity
0
C2
Acute Dermal Toxicity
0
C3
Acute Inhalation Toxicity
(1)
D1
Skin Irritation/Corrosivity
0
D2
Eye Irritation/Corrosivity
1
D3
Specific Health Concerns
R
E1
Tainting and Odour
E2
Wildlife and Seabeds
D
E3
Beaches and Amenities
3
F
Remarks
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0
Inorg
ESPH 14/2/3
ANNEX
Page 5
5.2
Proposed Carriage Requirements
Column in the
IBC Code
Property
Value
c
Pollution Category
Y
d
Safety/Pollution Properties
e
Ship Type
3
f
Tank Type
2G
g
Tank Vents
Open
h
Tank Environmental Control
No
i’
Electrical Equipment – Class
-
i’’
Electrical Equipment – Group
-
i’’’
Electrical Equipment – Flashpoint>60ºC
j
Gauging
k
Vapour Detection
No
l
Fire Protection
AC
n
Emergency Equipment
No
o
Special Requirements
15.19.6
NF
Open
___________
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S/P