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Substance Data

Chemical Substances Information

CAS RN	MITI Number	Chemical Substance Name	Chemical Structure
116552-58-0	1-174	Silicon carbide (Si0.1-0.99C0.01-0.9)	-

Regulatory Classification

Regulatory Classification	Cabinet Order No./Registration No.	Chemical Substance Name	date	Remarks
Priority Assessment Chemical Substances (PACSs)	143	Silicon carbide	2013/12/20
Existing chemical substances	-	Silicon carbide

Screening Info

Publication year	Human health effect			Ecological effect			Detailed assessment by experts	Remarks
	Exposure Class	Hazard Class	Priority	Exposure Class	Hazard Class	Priority
2024	-	-	-	4	-	-		Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).
2023	-	-	-	4	-	-		Assessment has been conducted by the serial number of Priority Assessment Chemical Substances (PACSs).

Remarks

Information of Priority Assessment Chemical Substance

Information of designation

Classification	Designated date	No.	MITI No.	Name of Priority Assessment Chemical Substance	Rationale for designation	Remarks
PACS	2013/12/20	143	1-174	Silicon carbide	Human health effect:x Ecological effect: detailed assessment by experts for:

No.

143

Risk Assessment Phase 1-I

publication date	Status of risk assessment	publication source	Remarks
2025/04/01	Risk Assessment Phase 1-I (human health effect)
2024/04/01	Risk Assessment Phase 1-I (human health effect)
2023/04/01	Risk Assessment Phase 1-I (human health effect)
2022/04/01	Risk Assessment Phase 1-I (human health effect)
2021/04/01	Risk Assessment Phase 1-I (human health effect)
2020/04/01	Risk Assessment Phase 1-I (human health effect)
2019/04/01	Risk Assessment Phase 1-I (human health effect)
2018/03/22	Risk Assessment Phase 1-I (human health effect)
2016/12/27	Risk Assessment Phase 1-I (human health effect)
2015/11/26	Risk Assessment Phase 1-I

Manufactured and/or imported quantities

Fiscal year	MITI Number	Registration No.	Chemical Substance Name	Classification	Manufactured and/or imported quantities (t)	Remarks
2023	1-174	143	Silicon carbide	Priority Assessment Chemical Substances (PACSs)	42,865
2022	1-174	143	Silicon carbide	Priority Assessment Chemical Substances (PACSs)	38,025
2021	1-174	143	Silicon carbide	Priority Assessment Chemical Substances (PACSs)	45,912
2020	1-174	143	Silicon carbide	Priority Assessment Chemical Substances (PACSs)	37,179
2019	1-174	143	Silicon carbide	Priority Assessment Chemical Substances (PACSs)	43,979
2018	1-174	143	Silicon carbide	Priority Assessment Chemical Substances (PACSs)	45,445
2017	1-174	143	Silicon carbide	Priority Assessment Chemical Substances (PACSs)	50,323
2016	1-174	143	Silicon carbide	Priority Assessment Chemical Substances (PACSs)	50,634
2015	1-174	143	Silicon carbide	Priority Assessment Chemical Substances (PACSs)	54,486
2014	1-174	143	Silicon carbide	Priority Assessment Chemical Substances (PACSs)	47,246
2013	1-174	143	Silicon carbide	Priority Assessment Chemical Substances (PACSs)	40,008
2012	1-174		Silicon carbide	General chemical substance	10,000 - < 20,000

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