Safety data sheet
According to EC Directive 91/155/EEC
MERCK
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1. Identification of the substance/preparation and of the company/undertaking
Identification of the product
Catalogue No.: 100160
Product name: Boric acid cryst. extra pure Ph Eur,BP,NF

Manufacturer/supplier identification
Company: Merck Ltd.
9th Floor, Monterey Tower, 2170 New Petchburi Road, Bangkapi, Huaykwang, Bangkok 10320
Tel: (662) 308 - 0218

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2. Composition/information on ingredients
CAS-No.: 10043-35-3 EC-Index-No.: -
Molar mass: 61.83 EINECS-No.: 233-139-2
Molecular formula: H3BO3

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3. Hazards identification
According to the evaluative data available, a classification according to categories of danger as specified in Directive 67/548/EEC and laid down in the legislation of the country concerned is not required.

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4. First aid measures
After inhalation: fresh air.
After skin contact: wash off with plenty of water.
After eye contact: rinse out with plenty of water with the eyelid held wide open. Summon eye specialist if necessary.
After swallowing: make victim drink plenty of water, induce vomiting. Summon doctor if feeling unwell.

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5. Fire-fighting measures
Suitable extinguishing media:
In adaption to materials stored in the immediate neighbourhood.

Special risks:
none

Other information:
Non-combustible.

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6. Accidental release measures
Procedures for cleaning / absorption:
Take up dry. Forward for disposal. Clean up affected area.

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7. Handling and storage
Handling:
No further requirements.

Storage:
Tightly closed. Dry.

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8. Exposure controls/personal protection
Personal protective equipment:
Respiratory protection: required when dusts are generated.
Eye protection: required
Hand protection: not required
Industrial hygiene: Change contaminated clothing. Wash hands after working with substance.

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9. Physical and chemical properties
Form: solid
Colour: white
Odour: odourless
pH value
at 30 g/l water (20 C) ประมาณ 4
Melting temperature 185 C
Boiling temperature not available
Ignition temperature not available
Flash point not available
Explosion limits lower not available
upper not available
Density (20 C) 1.44 g/cm3
Solubility in water (21 C) 50 g/l
water (100 C) 390 g/l

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10. Stability and reactivity
Conditions to be avoided
no information available

Substances to be avoided
anhydrides / heat

Hazardous decomposition products
no information available

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11. Toxicological information
Acute toxicity
LD50 (oral, rat): 2660 mg/kg

Subacute to chronic toxicity
NTP evaluation for carcinogenicity: negative in animals.

Further toxicological information

After eye contact: Irritations.
After swallowing: Possible symptoms: nausea , vomiting , diarrhoea
After absorption of large quantities: agitation, spasms , tiredness , ataxia (impaired locomotor coordination) , drop in temperature

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12. Ecological information
Ecotoxic effects:
Biological effects: Toxic for aquatic organisms
The following applies to boron compounds in general: biological effects: boric acid developing as a result of hydrolysis toxic for aquatic organisms; fish: Gambusia affinis 96 h. LC50: 5600 mg/l; 24 h. LC50:1800 mg/l; plants: as toxic from 1 mg/l .

Further ecologic data:
No ecological problems are to be expected when the product is handled and used with due care and attention.

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13. Disposal considerations
Product:
There are no uniform EC Regulations for the disposal of chemicals or residues. Chemical residues generally count as special waste. The disposal of the latter is regulated in the EC member countries through corresponding laws and regulations. We recommend that you contact either the authorities in charge or approved waste disposal companies which will advise you on how to dispose of special waste.

Packaging:
Disposal in compliance with official regulations. Handle contaminated packaging in the same way as the substance itself. If not officially specified differently, non-contaminated packaging may be treated like household waste or recycled.

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14. Transport information
Not subject to transport regulations.

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15. Regulatory information
Labelling according to EC Directives
R-phrases: ---
S-phrases: ---

German regulations
Water pollution class 1 (slightly polluting substance)

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16. Other information
Reason for alteration
General update.

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