SAFETY DATA SHEET
Schein Fast Developer 12x250ml
1. IDENTIFICATION 5. FIRE-FIGHTING
Item Code : 900-1305
The solution is water-based and non-combustible. There
Henry Schein Inc, Melville NY 11747 USA
is no explosion hazard.
Henry Schein UK Holdings, Medcare House
Gillingham Business Pk Gillingham Kent ME8 0SB
Tel No. 00 44 (0) 1634 878750
Chemtrec International 001 703 527 3887.
6. ACCIDENTAL RELEASE
Tel: +44 (0)1277 235456
Personal:
Prevent skin and eye contact. Use respiratory and other
protection as Section 8.
2. COMPOSITION
A Concentrated X-Ray developer, normally diluted Environmental:
1+3 with water for working solution, containing the In emergency the solution can be safely disposed to foul
following components are as follows. sewer by dilution with water (see Section 12).
Cleaning:
Component CAS no. %w/w
Water 60 Excess liquid should be absorbed with sawdust, sand or
Hydroquinone 123-31-9 4 proprietary methods. Dispose of this material via waste
Sodium hydroxide 1310-73-2 <0.5 contractor, and wash affected area with water.
3. HAZARDS 7. HANDLING & STORAGE
The most likely hazard is irritation of the skin or Good general ventilation of ten or more room
eyes through contact. The developer is alkaline and volume changes per hour in the work area is
contains hydroquinone and for both reasons will recommended. Storage should be at moderate
temperature i.e., 5-20oC. Keep away from strong
cause irritation; prolonged or repeated contact may
cause sensitisation of the skin. The European Union acids and alkalis.
has classified hydroquinone as a Category 3 mutagen
and carcinogen at concentrations above 1%, but the
evidence is confined to animal tests involving high
8. PERSONAL PROTECTION
doses.
In the event of spillage, or when working in close
The solution is largely water and contains no major
proximity to the solutions (e.g. processor
environmental pollutants.
maintenance and cleaning), wear protective clothing.
This should comprise an overall, rubber gloves,
safety goggles to BS EN166-3S. The developer does
4. FIRST AID not emit hazardous fumes and respiratory protection
is unnecessary; however, if developer accidentally
Eye Contact: mixes with fixer, then ammonia may be given off
Irrigate the eyes with water for 15 minutes. Ensure all and a half-mask respirator fitted with a K1 filter
traces are washed out. Seek medical advice. should be used to protect the wearer.
Skin Contact:
Wash affected areas with soap and water as soon as
9. PHYSICAL & CHEMICAL PROPERTIES
possible. Seek medical advice if irritation persists.
Appearance clear, yellowish liquid
Ingestion:
Odour none
Drink water to dilute. Induce vomiting. Seek medical
pH 11.0 (concentrate), 10.7 (working)
advice.
>100oC
Boiling point
<0oC
Melting point
Inhalation:
Flash point none
Risks for this route of exposure are unlikely. If a
Explosive properties none
problem occurs, move the person to fresh air.
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SAFETY DATA SHEET
Fast Developer T/M 12x1L
C=concentration at which there is 50% inhibition of
Oxidising properties none growth or 50% of the organisms are affected or dead
Vapour pressure not determined after the specified interval). Units are usually milligrams
Specific gravity 1.25 (concentrate), 1.10 (working) per litre and any value of 100mg/l or less indicates a
Water solubility complete toxic substance.
Octanol/water partition not determined
Toxic effects are lessened if the substance degrades
rapidly. Biodegradability is considered rapid if the ratio
BOD5/COD is >0.5. (BOD5 is the biological oxygen
10. STABILITY & REACTIVITY
demand imposed by the substance on natural water as it
degrades over 5 days. COD is the chemical oxygen
The solution is stable and will not polymerise. It is
demand during complete laboratory oxidisation with
predominantly water.
dichromate. High BOD or COD means a polluting
substance likely to kill organisms by depleting oxygen.)
It is an alkaline reducer and so will react vigorously
Rapid degradation is also assumed if 70% of dissolved
with strong acids and oxidisers. Strong acids will also
organic carbon (DOC) disappears, or if 60% of the
liberate sulphur dioxide and carbon dioxide, and thermal
theoretical maximum oxygen depletion (OD) or carbon
decomposition will yield carbon dioxide, carbon
dioxide generation (COG) is achieved, over a 28 day
monoxide and inorganic particulates.
period. Abiotic degradation is also possible, e.g.
photolysis.
Toxic effects are accentuated if organisms accumulate
11. TOXICOLOGICAL
the contaminant through either the food chain or
absorption from ambient media like water.
The table summarises data for the hazardous
Bioaccumulation potential is related to the partition of
components identified in Section 2.
the substance between water and lipids. A useful
Oral-rat LD50 Occupational Exposure
Standard indicator is the octanol/water partition coefficient
2mg/M3
Hydroquinone 320mg/kg expressed as its logarithm (logPow). If logPow 鈮?3.0 the
2mg/M3
Sodium hydroxide - substance is considered bioaccumulative unless the
measured bioconcentration factor (BCF) is 鈮?100. (The
mg 鈥? milligram
BCF is the ratio of the concentration inside the organism
kg 鈥? kilogram
compared to that in the ambient environment).
M3 鈥? cubic metre
* the lowest applicable (usually long-term)
Data
ppmv 鈥? parts per million by volume
The table summarises information for constituents with
LD50 鈥? calculated dose to kill 50% of a population of
ecotoxicities 鈮?100mg/l:
rats when taken in food or drink
Environmental Pollutant
Hydroquinone
Hydroquinone may cause skin irritation and
toxicity (mg/l)
sensitisation by contact, and is a Category 3 mutagen
- LC50 (fish) 0.10
and carcinogen.
- EC50 (Daphnia) 0.16
Sodium hydroxide in this solution may cause eye and
- IC50 (algae) 1.0
skin irritation. Ingestion will irritate the mucous
- interpretation very toxic
membranes; 1 gram of hydroquinone may induce
tinnitis, nausea or headaches, and 5-12g can be fatal.
degradability
There should be no significant inhalation risk.
- BOD5/COD 0.53
- DOC no data
- OD/COG no data
12. ECOLOGICAL - abiotic rapid
- interpretation rapid
Background
bioaccumulation - logPow 0.59
Freshwater ecotoxicity is assessed from the effects of - BCF 40
the substance on fish (typically rainbow trout for cold - interpretation absent
water and bluegill sunfish for warm), invertebrates
(Daphnia or waterflea) and algae (especially
Selenastrum capricornutum). The effects are expressed
as 96hrLC50, 48hrEC50 and 72hrIC50 values respectively
(L=lethal, E=effect, I=inhibition referring to
Page 2 of 3
SAFETY DATA SHEET
Fast Developer T/M 12x1L
The theoretical oxygen demand of the concentrate is 15.REGULATORY INFORMATION
134,000mg/litre.
Labelling is in accordance with the Code of Practice
for Classification, Packaging and Labelling of
Comment
Photographic and Lithographic Processing
Hydroquinone is toxic but its effects vary by a factor Chemicals (European Photochemical Industry,
of 1000 between species. It degrades rapidly and so Sector Group of CEFIC) which complies with but
does not persist; nor does it accumulate. extends the regulations listed in Section 2 above.
Other constituents are not environmentally Hydroquinone
dangerous. Although strong acids and alkalis appear
toxic from tables, this is derived from their pH Symbol Xn
effects in laboratory tests rather than inherent Risk Phrases 40-43-68
toxicity. These effects are swamped in the Safety Phrases 24-37
environment by dilution and natural buffering.
Similarly, sulphite imposes a local oxygen demand
but this has little effect on the wider environment.
16. OTHER INFORMATION
Inorganic constituents (unless they contain a toxic
metal) are non-toxic, very soluble and fully
Relevant risk and safety phrases are as follows:
dissociated in solution. Remaining organic
constituents, even if environmentally dangerous in
Risk 鈥? 40 Limited evidence of a carcinogenic effect
their pure form, are present in such low
鈭? 43 May cause sensitisation by skin contact
concentrations as to pose little risk.
鈭? 68 Possible risk of irreversible effects
Safety 鈥? 24 Avoid contact with skin
13.DISPOSAL 鈥? 37 Wear suitable gloves
Heavy dilution with water will reduce the COD and The symbol 鈥榅n鈥? means 鈥榟armful鈥?.
moderate the pH to the extent it can be discharged to
sewer and meet any likely trade effluent consent. Date of Issue : 31st March 2003
Disposal by waste contractor is also possible; the
developer in concentrated and diluted form is
classified as 鈥楽pecial Waste鈥? because it releases a
toxic gas (sulphur dioxide) in contact with strong
acid, as may accidentally occur in a waste treatment
plant. Empty bottles should be rinsed for safety and
to facilitate recycling.
Incineration is not energy efficient as the solution
comprises 60% water, but otherwise is a satisfactory
method of disposal yielding oxides of carbon and
inorganic particulates.
14.TRANSPORT
The product is classified non-hazardous for
conveyance under the UK Carriage of Dangerous
Goods by Road & Rail (Classification, packaging &
labelling) Regulations and is unrestricted for
international conveyance by sea (IMDG), air
(ICAO), road (ADR) & rail (RID). No UN number
is required.
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