GHS Classification Result

Chemical Name:Perchloric acid
CAS:7601-90-3

Result:
ID: 07-D33
Classifier: Ministry of Health, Labour and Welfare (MHLW), Ministry of the Environment (MOE)
Year Classified: FY2007
Reference Manual: GHS Classification Manual (10 Feb, 2006)
Technical Guidance Document on the GHS Classification (6 Dec, 2005)

PHYSICAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Explosives Classification not possible - - - - It contains chemical groups (perchlorates) associated with explosive properties. The substance is described as an anhydrous and colorless fuming liquid which flows easily; because of its unstable nature, it breaks down if left by itself, and it explodes if heated (Encyclopedia Chimica, Kyoritsu Shuppan Co. Ltd.). The substance with its concentration 72% or higher is prohibited from being transported (Ship Safety Act / Article 5-3(c) of Public Notice of the Ministry of Transport, No.549 of 1979). However, since it is not used as explosives, no evaluation was carried out on this substance as explosives. Consequently, it was classified into the "Classification not possible" category.
2 Flammable gases (including chemically unstable gases) Not applicable - - - - Liquid
3 Aerosols Not applicable - - - - Not aerosol products.
4 Oxidizing gases Not applicable - - - - Liquid
5 Gases under pressure Not applicable - - - - Liquid
6 Flammable liquids Not classified - - - - Nonflammable
7 Flammable solids Not applicable - - - - Liquid
8 Self-reactive substances and mixtures Not applicable - - - - It contains chemical groups (perchlorates) associated with explosive properties. The substance with its concentration exceeding 72% is prohibited from being transported (Ship Safety Act / Article 5-3(c) of Public Notice of the Ministry of Transport, No.549 of 1979). However, since it is defined as an oxidizing liquid, it does not fit the definition of self-reactive substances. Consequently, the substance was classified into the "Not applicable" category.
9 Pyrophoric liquids Not classified - - - - Nonflammable
10 Pyrophoric solids Not applicable - - - - Liquid
11 Self-heating substances and mixtures Not classified - - - - Nonflammable
12 Substances and mixtures which, in contact with water, emit flammable gases Not applicable - - - - The chemical structure of the substance does not contain metals or metalloids (B, Si, P, Ge, As, Se, Sn, Sb,Te, Bi, Po, At).
13 Oxidizing liquids Category 1 Danger H271: May cause fire or explosion; strong oxidizer P371+P380+P375: In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion.
P306+P360: IF ON CLOTHING: Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P370+P378: In case of fire: Use ... for extinction.
P210: Keep away from heat/sparks/open flames/hot surfaces. ? No smoking.
P220: Keep/Store away from clothing/.../combustible materials.
P221: Take any precaution to avoid mixing with combustibles/...
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P283: Wear fire/flame resistant/retardant clothing.
P501: Dispose of contents/container to ...
The substance with its concentration between 50 and 72% in aqueous solution is defined as UN1873, Division 5.1 I. Based on this information the substance, including that with its concentration above 72%, was classified into Category 1. (The substance with its concentration less than 50% in aqueous solution is defined as UN1802, Division 5.1 II and was classified into Category 2)
14 Oxidizing solids Not applicable - - - - Liquid
15 Organic peroxides Not applicable - - - - Inorganic substance
16 Corrosive to metals Category 1 Warning H290: May be corrosive to metals P234: Keep only in original container.
P390: Absorb spillage to prevent material-damage.
P406: Store in corrosive resistant/... container with a resistant inner liner.
Since the substance is rated as Class 8 by the UNRTDG, and it violently corrodes most metals according to the literature (Hommel (1991) Card No. 301), it was classified into Category 1.

HEALTH HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Acute toxicity (Oral) Category 4 Warning H302: Harmful if swallowed P301+P312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
P264: Wash ... thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P330: Rinse mouth.
P501: Dispose of contents/container to ...
Based on its rat LD50 of 1100 mg/kg documented in RTECS (accessed in July 2007), the substance was classified into Category 4.
1 Acute toxicity (Dermal) Classification not possible - - - - No data available.
1 Acute toxicity (Inhalation: Gases) Not applicable - - - - Liquid
1 Acute toxicity (Inhalation: Vapours) Classification not possible - - - - No data available.
1 Acute toxicity (Inhalation: Dusts and mists) Classification not possible - - - - No data available.
2 Skin corrosion/irritation Category 1A-1C Danger H314: Causes severe skin burns and eye damage P301+P330+P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash ... thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P310: Immediately call a POISON CENTER or doctor/physician.
P321: Specific treatment (see ... on this label).
P363: Wash contaminated clothing before reuse.
P405: Store locked up.
P501: Dispose of contents/container to ...
Since the substance is documented to be severely skin corrosive in humans (HSDB (2003), ISCS (J) (2000)), it was classified into Category 1. In pursuit of more refined classification, since the severity of corrosion is not reported, we finalized the classification as Category 1A-1C.
3 Serious eye damage/eye irritation Category 1 Danger H318: Causes serious eye damage P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P310: Immediately call a POISON CENTER or doctor/physician.
Based on the description that the substance is corrosive to human eyes (HSDB (2003), ISCS (J) (2000)), it was classified into Category 1.
4 Respiratory sensitization Classification not possible - - - - No data available.
4 Skin sensitization Classification not possible - - - - No data available.
5 Germ cell mutagenicity Classification not possible - - - - No data available.
6 Carcinogenicity Classification not possible - - - - No data available.
7 Reproductive toxicity Classification not possible - - - - No data available.
8 Specific target organ toxicity - Single exposure Category 2 (respiratory system) Warning H371: May cause damage to organs (respiratory system) P309+P311: IF exposed or if you feel unwell: Call a POISON CENTER or doctor/physician.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P264: Wash ... thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P405: Store locked up.
P501: Dispose of contents/container to ...
The substance was classified into Category 2 (respiratory system) based on the following reports: inhalation of the substance may cause strong respiratory tract irritation and lung effects (HSDB (2003)); effects of short-term exposure: corrosive, the vapor is very corrosive to the eyes, skin and respiratory tract, inhalation of the vapour or mist may cause lung edema (ICSC (J) (2000)).
9 Specific target organ toxicity - Repeated exposure Classification not possible - - - - No data available.
10 Aspiration hazard Classification not possible - - - - No data available.

ENVIRONMENTAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
11 Hazardous to the aquatic environment (Acute) Classification not possible - - - - No data available.
11 Hazardous to the aquatic environment (Long-term) Classification not possible - - - - No data available.


NOTE:
* Classification was conducted by relevant Japanese Ministries in accordance with GHS Classification Guidance for the Japanese Government, and is intended to provide a reference for preparing GHS labelling and SDS for users.
* This is a provisional English translation of classification results and is subject to revision without notice.
* The responsibility for any resulting GHS labelling and SDS referenced from this site is with users.

Reference:
Reference Manual

Definitions / Abbreviations

Model Label by MHLW

MHLW Website (in Japanese Only)

Model SDS by MHLW

MHLW Website (in Japanese Only)


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