Contrac Blox SDS






Regulation (EU) 2015/830


July 2017


SECTION 1. Identification of the substance/mixture and of the company /undertaking

1.1. Product Identifier:


1.2. Relevant identified uses of the substance or mixture and uses advised against 1.2.1 Relevant identified uses

USE: Anticoagulant Rodenticide – Ready to use  (RB)  

FORM: Wax block bait (BB)

1.2.2 Uses advised against

Use only for the purpose detailed in Section 1.2.1

1.3. Details of the supplier of the safety data sheet

MANUFACTURER:                                                AUTHORISATION HOLDER:

Bell Laboratories, Inc.                                                Bell Laboratories, Inc.

3699 Kinsman Blvd. Madison, WI 53704, USA               Chaucer House, Chaucer Rd.

t: +1 608 241 0202                                                     Sudbury, Suffolk

e:                                        CO10 1LN, UK


1.4. Emergency telephone number: +1-952-852-4636 –Available 24h  English language phone service or Local or Regional Poison Control Centre.

SECTION 2. Hazards identification

2.1. Classification of the substance or mixture

Classification according to Regulation (EC) No. 1272/2008 [CLP]:

STOR RE2 H373: May cause damage to the blood through prolonged or repeated exposure

2.2 Label Elements

Labelling according to Regulation (EC) 1272/2008 Hazard Pictogram:  






Signal Word: Warning


Hazard Statement(s) (CLP):

H373: May cause damage to the blood through prolonged or repeated exposure.


Precautionary Statements:

P102: Keep out of reach of children.

P103: Real label before using

P314: Get medical attention if you feel unwell.

P501: Dispose of contents/container in accordance with national regulations

2.3. Other Hazards


SECTION 3. Composition/information on ingredients 

3.1 Substances: No substances fulfill the criteria set forth in Annex II Section A of the REACH  regulation (EC) No 1907/2006


3.2. Mixtures: Description of the mixture: Formulated dry rodenticide bait containing Bromadiolone



Chemical name* (IUPAC)

% By weight* 


EC No.


Bromadiolone [3-[3-(4’-Bromo[1,1’-biphenyl]-4-yl)-3-hydroxy-1phenylpropyl]-4-hydroxy-2H-1benzopyran-2-one]

0.005 %



Regulation 1272/2008

Acute Tox. 1 (oral)    H300

Acute Tox. 1 (dermal) H310

Acute Tox 1 (Inhalation) H330

STOT RE 1            H372

Aquatic chronic 1  H410

*Unlisted components not listed are non-hazardous

SECTION 4. First aid measures

4.1.  Description of first aid measures

General Advice: Please refer to the instructions below for each specific way of exposure.

Ingestion: Rinse mouth carefully with water. Do not give anything by mouth or induce vomiting unless instructed by physician.

Inhalation: Not applicable.

Eye contact: Flush with cool water for at least 15 minutes.  If irritation develops, obtain medical assistance.

Skin contact: Wash with soap and water.  If irritation develops, obtain medical assistance.

4.2. Most important symptoms and effects, both acute and delayed

Ingestion of excessive quantities may cause nausea, vomiting, loss of appetite, extreme thirst, lethargy, diarrhea, bleeding.

4.3. Indication of any immediate medical attention and special treatment needed 

Advice to physician: If ingested, administer Vitamin K1 intramuscularly or orally as indicated for bishydroxycoumarin overdoses.  Repeat as necessary as based upon monitoring of prothrombin times. Antidote:  Phytomenadione, Vitamin K1 is antidotal

SECTION 5. Firefighting measures

5.1. Extinguishing media

Suitable Extinguishing Media: water, foam or inert gas.  

Unsuitable Extinguishing Media: None known.

5.2. Special hazards arising from the mixture:  High temperature decomposition or burning in air can result in the formation of toxic gases, which may include carbon monoxide and traces of bromine and hydrogen bromide.  

5.3. Advice for firefighters: Wear protective clothing and self-contained breathing apparatus.

SECTION 6. Accidental release measures

6.1. Personal precautions, protective equipment and emergency procedures

6.1.1 For non-emergency personnel: Protective equipment should be worn when handling the bait. Collect spillage without creating dust.

6.1.2 For emergency responders: Protective equipment should be worn when handling the bait. Collect spillage without creating dust. 

6.2. Environmental precautions: Do not allow bait to enter drains or water courses.  Where there is contamination of streams, rivers, or lakes contact the appropriate respective authorities.

6.3. Methods and materials for containment and cleaning up

6.3.1 For Containment: Sweep up spilled material immediately.  Place in properly labeled container for disposal.  

6.3.2 For Cleaning Up: Wash contaminated surfaces with detergent.  Dispose of all wastes in accordance with all local, regional and national regulations.

6.3.3 Other Information: Not applicable

6.4. Reference to other sections: Refer to Sections 7, 8 & 13 for further details of safe handling, personal protective equipment, and disposal considerations.

SECTION 7. Handling and storage

7.1. Precautions for safe handling

7.1.1 Protective Measures: Keep product in the original container.  Do not handle the product near food, animal foodstuffs or drinking water.  Keep out of reach of children.  Do not use near heat sources, open flame, or hot surfaces.  

7.1.2 Advice on general occupational hygiene: Do not eat, drink or smoke whilst handling. Wash thoroughly with soap and water after handling.

7.2. Conditions for safe storage, including any incompatibilities

Store only in original container in a cool, dry place, inaccessible to pets and wildlife.  KEEP OUT OF REACH OF CHILDREN.  Keep container tightly closed when not in use.  

7.3. Specific end uses(s)

Rodenticide - ready to use



SECTION 8. Exposure controls/personal protection

8.1. Control Parameters

Occupational exposure limits: Not established

8.2. Exposure Controls

8.2.1 Appropriate engineering controls: Not required

8.2.2 Personal Protection

Respiratory protection: Not required

Eye protection: Not required

Skin protection: Wear rubber gloves (for example, EN 374 or disposable latex gloves) Hygiene recommendations: Wash thoroughly with soap and water after handling.

8.2.3 Environmental exposure controls: Prevent the substance from entering drains and water-courses.

SECTION 9. Physical and chemical properties

9.1. Information on basic physical and chemical properties

  Appearance/Colour:                                          Blue solid wax blocks

Odour:             Sweet grain-like Odour Threshold:              No data

  pH:                                                                Not applicable, not dispersible with water

  Melting point:                                                  No data (melting point for Bromadiolone is 192.6 – 193.9°C)

  Boiling point:                                                   No data

  Flash point:                                                     Not applicable

  Evaporation rate:                                              Not applicable, is a solid  

  Upper/lower flammability or explosive limits:        No data 

  Vapour Pressure:                                              Not applicable

  Relative Density:                                              1.12 g/mL @ 20°C

  Solubility (water):                                            Not water soluble  

  Partition coefficient: n-octanol/water:                   No data

  Auto-ignition temperature:                                 Not applicable

  Decomposition temperature:                               No data

  Explosive properties:                                        Not applicable

  Oxidising properties:                                         Not applicable


9.2. Other Information: None known

SECTION 10. Stability and reactivity

10.1. Reactivity: Stable when stored in original container in a cool, dry location.  There are no particular risks of reaction with other substances in normal conditions of use.

10.2. Chemical stability: Stable when stored in original container in a cool, dry location.

10.3. Possibility of hazardous reactions: Please refer to 10.6 (Hazardous decomposition products).

10.4. Conditions to avoid: Avoid extreme temperatures (below 0°C or above 40°C).  

10.5. Incompatible materials: Avoid strongly alkaline materials.  

10.6. Hazardous decomposition products: High temperature decomposition or burning in air can result in the formation of toxic gases, which may include carbon monoxide and traces of bromine and hydrogen bromide.  

SECTION 11. Toxicological information

11.1. Information on toxicological effects

11.1.1 Substances : Not applicable

11.1.2 Mixtures – Not applicable (a)  Acute Toxicity

LD50, oral (ingestion): >5000 mg/kg (rats) (Bromadiolone Rat LD50 oral: <5mg/kg bw).

LD50, dermal (skin contact): > 5001 mg/kg (rats) (Bromadiolone Rat LD50 dermal: 7.48 mg/kg bw (female rats).

LC50, inhalation: Not applicable (b) Skin corrosion/irritation : Not irritating to skin. (c) Serious eye damage/Irritation: Not irritating to eyes. (d) Respiratory or skin sensitization: Dermal sensitization: Not a Sensitizer (Buehler test method). (e) Germ cell mutagenicity: Not considered to have a mutagenetic effect. (f) Carcinogenicity: Contains no components known to have a carcinogenetic effect. (g) Reproductive Toxicity: No data available. (h) STOT-Single Exposure: No data available. (i) STOT Repeated Exposure: Specific Target organ toxicity – Repeated exposure, Category 2 (j) Aspiration Hazard: Not relevant.

SECTION 12. Ecological information

General Information: The environmental risk assessment shows that Bromadiolone does not cause unacceptable risk in the aquatic environment, terrestrial environment or in the atmosphere. Bromadiolone is neither expected to accumulate in sediment nor contaminate groundwater.  Predatory and scavenging mammals and birds might be poisoned if they have eaten the bait.  Use a bait station to minimize these risks.  Please note, the data below reflects the active ingredient Bromadiolone.  This product is formulated @0.005% or 50ppm Bromadiolone.  When compared to the data relevant to the active ingredient, ecological effects should be significantly lower for this product.


12.1. Toxicity

For Bromadiolone: 

Fish: 96h LC50 ((Oncorhynchus mykiss))  = 4.33 mg/l Invertebrates: 48h EC50 (Daphnia magna) 0.222 mg/l

Algae: 72h EbC50 Selenastrum capricornutum = >ErC50 = 7.31 mg/l

Microorganisms (activated sludge): EC50 >100 mg/L (based on water solubility at pH 7 and T = 20°C)

12.2. Persistence and degradability: For Bromadiolone:  Not readily biodegradable under normal conditions.  However, photolysis of

Bromadiolone is rapid with a half-life 0.5 hours or less (pH7 and 9, 25°C).  In addition Bromadiolone is not volatile and therefore would not be expected to be present in the air in significant quantities.   

12.3. Bioaccumulative potential: For Bromadiolone:  Log Pow is >3, which indicates a potential to bioaccumulate

BCF: For Bromadiolone, estimated for freshwater fish = 1750 (QSAR by Vieth et al (1979))

12.4. Mobility in Soil: KOC: 1223 to 36011 mL/g (advanced adsorption test). Mobility of Bromadiolone in soil is considered to be limited.. 

12.5.  Results of  PBT and vPvB assessment: Other than the active ingredient, this mixture does not contain any substances that are assessed to be PBT or vPvB.  

12.6. Other adverse effects: None.

SECTION 13. Disposal considerations

13.1. Waste Treatment Methods

13.1.1 Product/packaging disposal: Wastes resulting from use may be disposed of on-site or at an approved waste disposal facility.  Dispose of all wastes in accordance with all local, regional and national regulations.

13.1.2 Waste treatment-relevant information: Wastes resulting from the use of this product may be disposed of on site or at an approved waste disposal facility.

13.1.3 Sewage disposal-relevant information: Not applicable

13.1.4 Other disposal recommendations: None

SECTION 14. Transport information

14.1. UN number: Not applicable

14.2. UN proper shipping name: ADR/RID (Road/Rail): Not applicable

14.3. Transport hazard class(es): Not applicable

14.4. Packing group: Not applicable

14.5. Environmental hazards

ADR/RID (Road/Rail): Not considered hazardous by ADR/RID Regulations for transportation via road/rail.

IMDG (Maritime): Not considered hazardous by IMO Regulations for transportation via vessel.

IATA (Air): Not considered hazardous by IATA Regulations for transportation via air.

14.6. Special precautions for user: Not applicable



15.1. Safety, health and environmental regulations/legislation specific for the substance or mixture: Regulated under Regulation (EU) 528/2012 

Substances in Candidate list (Art 59 REACH) :  None

Substances subject to authorization (Annex XIV REACH):  None

Restrictions (Annex XVII REACH):  None

15.2. Chemical safety assessment:  Exempt, CONTRAC BLOX is regulated under Regulation (EU) 528/2012 




16.1. Abbreviations and acronyms

Not applicable 

16.2. Key literature references and sources of data

Assessment Report (Inclusion of active substances in Annex I to Directive 98/8/EC, 17 September 2009, revised 16 December 2010. EU

Regulation 2015/830 and 528/2012

16.3. Classification and procedure used to derive the classification for mixtures according to Regulation (EC) 1272/2008 [CLP]

Classification according to Regulation (EC) No. 1272/2008: Not classified on the basis of available test data.

Classification according to Directive 1999/45/EC: Not classified on the basis of available test data.

16.5. Further Information:  This Safety Data Sheet has been compiled in accordance with Regulation (EU) 2015/830, (EC) No 1907/2006 (as amended by Regulation (EU) No 453/2010), and Regulation (EC) 1272/2008. For additional information, please contact the manufacturer noted in Section 1.  The information provided in this Safety Data Sheet has been obtained from sources believed to be reliable.  Bell

Laboratories, Inc. provides no warranties; either expressed or implied, and assumes no responsibility for the accuracy or completeness of the data contained herein.  This information is offered for your consideration and investigation.  The user is responsible to ensure that they have all current data relevant to their particular use.


Collapsible content

What is your process?

The first step is to do a full inspection of your house or building and then our expert technician will discuss with you what will need to be carried out to resolve your issues.
If it is possible to complete the work on the day the technician will then seal the entry points discussed and install a temporary one way door over one of the areas the possum uses to enter / exit. The possum will then exit through the door to go and forage and when they come back they will find themselves unable to go back in. We leave the door for a minimum of 4 days as it can take up to 4 days for the possum/s to exit but in most cases, they will exit the same night as when the doors were installed.
Once the possum is no longer in the roof we then come back to remove the door and seal the underlaying entry point.
We also inspect for rats and have several options to resolve this issue which will be discussed with you at the time of inspection.

How do I remove Possums from my backyard?

Unfortunately, you can’t remove possums more than 150m from the backyard, what you can do is remove any plants or trees that may be attracting them, there are different products on the market that might work short term but it is likely the possums will get accustomed to the sprays, homemade “tea” and sonic or strobe light deterrents so these are not a guaranteed solution.

Are there possum rules for removing Possums?

Native animals may only be caught by a holder of a current catch and release licence and they must adhere to the conditions under National Parks and Wildlife Act 1974 which states a possum must be released, unharmed, after sunset, on the property on which they were captured and within 150m from the point of capture, against a structure that they can immediately climb and not to release native animals in an area where there is a high probability of injury or death.

How do I know if it’s a possum or rats?

Both Possums and Rats are more active at night however Possums are more likely to have a set routine so they will leave at roughly the same time each night between dusk and 11pm and then they will return between 3am and dawn.
Rats on the other hand are more sporadic and can sometimes be heard moving during the day.