Note: Ingredients listed on restricted chemical lists
EC/CAS
205-503-0/141-82-2
Name of the chemical
malonic acid
Concentration
50-60%
General Information
Version
4.5
Revision date
2026-03-23
Product name
Ozone Reagent, Low Range 0 - 0.25 mg/l O3
1.2.1 Relevant identified uses
Laboratory Reagent. Determination of ozone in water
1.2.2. Uses advised against
Consumer use
supplier name
HACH LANGE GmbH
Emergency telephone
+44 20 3807 3798
Icons in SDS
Company Information
company name
HACH LANGE GmbH
e-mail address of the competent person responsible for the Safety Data Sheet
sds@hach.com, info-uk@hach.com, info-ie@hach.com
GHS Information
Signal word
Warning
Hazard Codes
Hazard statements (CLP)
H319, H332, H335
Hazard statements
Code
Statements
H319
Causes serious eye irritation
Section 2
SECTION 2: Hazards identification
Classification according to Regulation (EC) No. 1272/2008 [CLP Classification of the substance or mixture
Contains
Propanedioic acid 57%
Signal word
Warning
Hazard statements
H319 - Causes serious eye irritation H332 - Harmful if inhaled H335 - May cause respiratory irritation
Precautionary statements
P261 - Avoid breathing dust/fume/gas/mist/vapours/spray P271 - Use only outdoors or in a well-ventilated area P280 - Wear protective gloves and eye/face protection P304 + P340 - IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing P312 - Call a POISON CENTER or doctor/physician if you feel unwell P337 + P313 - If eye irritation persists: Get medical advice/attention
2.3 Other hazards
No information available.
PBT Substances
& vPvB This mixture contains no substance considered to be persistent, bioaccumulating or toxic (PBT) This mixture contains no substance considered to be very persistent nor very bioaccumulating (vPvB) Endocrine Disruptor Information This product does not contain any known or suspected endocrine disruptors.
2.1 Classification of the substance or mixture
Classification according to Regulation (EC) No. 1272/2008 [CLP] Acute toxicity - Inhalation (Vapours) Category 4 - (H332) Acute toxicity - Inhalation (Dusts/Mists) Category 4 - (H332) Serious eye damage/eye irritation Category 2 - (H319) Specific target organ toxicity (single exposure) Category 3 - (H335)
